mirror of
https://github.com/MariaDB/server.git
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887 lines
31 KiB
Text
887 lines
31 KiB
Text
drop table if exists t1,t2,t3,t4;
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drop database if exists mysqltest;
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create table t1 (v varchar(16384)) engine=innodb;
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drop table t1;
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create table t1 (a char(1), b char(1), key(a, b)) engine=innodb;
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insert into t1 values ('8', '6'), ('4', '7');
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select min(a) from t1;
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min(a)
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4
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select min(b) from t1 where a='8';
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min(b)
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6
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drop table t1;
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CREATE TABLE t1 ( `a` int(11) NOT NULL auto_increment, `b` int(11) default NULL,PRIMARY KEY (`a`),UNIQUE KEY `b` (`b`)) ENGINE=innodb;
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insert into t1 (b) values (1);
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replace into t1 (b) values (2), (1), (3);
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select * from t1;
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a b
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3 1
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2 2
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4 3
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truncate table t1;
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insert into t1 (b) values (1);
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replace into t1 (b) values (2);
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replace into t1 (b) values (1);
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replace into t1 (b) values (3);
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select * from t1;
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a b
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3 1
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2 2
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4 3
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drop table t1;
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create table t1 (rowid int not null auto_increment, val int not null,primary
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key (rowid), unique(val)) engine=innodb;
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replace into t1 (val) values ('1'),('2');
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replace into t1 (val) values ('1'),('2');
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insert into t1 (val) values ('1'),('2');
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ERROR 23000: Duplicate entry '1' for key 'val'
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select * from t1;
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rowid val
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3 1
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4 2
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drop table t1;
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create table t1 (a int not null auto_increment primary key, val int) engine=InnoDB;
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insert into t1 (val) values (1);
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update t1 set a=2 where a=1;
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insert into t1 (val) values (1);
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ERROR 23000: Duplicate entry '2' for key 'PRIMARY'
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select * from t1;
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a val
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2 1
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drop table t1;
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CREATE TABLE t1 (GRADE DECIMAL(4) NOT NULL, PRIMARY KEY (GRADE)) ENGINE=INNODB;
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INSERT INTO t1 (GRADE) VALUES (151),(252),(343);
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SELECT GRADE FROM t1 WHERE GRADE > 160 AND GRADE < 300;
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GRADE
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252
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SELECT GRADE FROM t1 WHERE GRADE= 151;
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GRADE
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151
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DROP TABLE t1;
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create table t1 (f1 varchar(10), f2 varchar(10), primary key (f1,f2)) engine=innodb;
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create table t2 (f3 varchar(10), f4 varchar(10), key (f4)) engine=innodb;
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insert into t2 values ('aa','cc');
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insert into t1 values ('aa','bb'),('aa','cc');
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delete t1 from t1,t2 where f1=f3 and f4='cc';
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select * from t1;
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f1 f2
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drop table t1,t2;
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CREATE TABLE t1 (
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id INTEGER NOT NULL AUTO_INCREMENT, PRIMARY KEY (id)
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) ENGINE=InnoDB;
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CREATE TABLE t2 (
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id INTEGER NOT NULL,
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FOREIGN KEY (id) REFERENCES t1 (id)
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) ENGINE=InnoDB;
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INSERT INTO t1 (id) VALUES (NULL);
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SELECT * FROM t1;
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id
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1
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TRUNCATE t1;
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ERROR 42000: Cannot truncate a table referenced in a foreign key constraint (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`id`) REFERENCES `test`.`t1` (`id`))
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INSERT INTO t1 (id) VALUES (NULL);
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SELECT * FROM t1;
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id
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1
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2
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DELETE FROM t1;
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TRUNCATE t1;
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ERROR 42000: Cannot truncate a table referenced in a foreign key constraint (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`id`) REFERENCES `test`.`t1` (`id`))
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INSERT INTO t1 (id) VALUES (NULL);
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SELECT * FROM t1;
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id
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3
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DROP TABLE t2, t1;
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CREATE TABLE t1
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(
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id INT PRIMARY KEY
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) ENGINE=InnoDB;
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CREATE TEMPORARY TABLE t2
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(
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id INT NOT NULL PRIMARY KEY,
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b INT,
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FOREIGN KEY (b) REFERENCES test.t1(id)
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) ENGINE=InnoDB;
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Got one of the listed errors
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DROP TABLE t1;
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create table t1 (col1 varchar(2000), index (col1(767)))
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character set = latin1 engine = innodb;
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create table t2 (col1 char(255), index (col1))
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character set = latin1 engine = innodb;
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create table t3 (col1 binary(255), index (col1))
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character set = latin1 engine = innodb;
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create table t4 (col1 varchar(767), index (col1))
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character set = latin1 engine = innodb;
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create table t5 (col1 varchar(767) primary key)
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character set = latin1 engine = innodb;
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create table t6 (col1 varbinary(767) primary key)
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character set = latin1 engine = innodb;
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create table t7 (col1 text, index(col1(767)))
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character set = latin1 engine = innodb;
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create table t8 (col1 blob, index(col1(767)))
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character set = latin1 engine = innodb;
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create table t9 (col1 varchar(512), col2 varchar(512), index(col1, col2))
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character set = latin1 engine = innodb;
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show create table t9;
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Table Create Table
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t9 CREATE TABLE `t9` (
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`col1` varchar(512) DEFAULT NULL,
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`col2` varchar(512) DEFAULT NULL,
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KEY `col1` (`col1`,`col2`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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drop table t1, t2, t3, t4, t5, t6, t7, t8, t9;
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create table t1 (col1 varchar(768), index(col1))
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character set = latin1 engine = innodb;
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Warnings:
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Warning 1071 Specified key was too long; max key length is 767 bytes
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create table t2 (col1 varbinary(768), index(col1))
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character set = latin1 engine = innodb;
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Warnings:
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Warning 1071 Specified key was too long; max key length is 767 bytes
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create table t3 (col1 text, index(col1(768)))
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character set = latin1 engine = innodb;
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Warnings:
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Warning 1071 Specified key was too long; max key length is 767 bytes
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create table t4 (col1 blob, index(col1(768)))
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character set = latin1 engine = innodb;
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Warnings:
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Warning 1071 Specified key was too long; max key length is 767 bytes
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`col1` varchar(768) DEFAULT NULL,
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KEY `col1` (`col1`(767))
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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drop table t1, t2, t3, t4;
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create table t1 (col1 varchar(768) primary key)
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character set = latin1 engine = innodb;
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ERROR 42000: Specified key was too long; max key length is 767 bytes
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create table t2 (col1 varbinary(768) primary key)
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character set = latin1 engine = innodb;
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ERROR 42000: Specified key was too long; max key length is 767 bytes
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create table t3 (col1 text, primary key(col1(768)))
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character set = latin1 engine = innodb;
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ERROR 42000: Specified key was too long; max key length is 767 bytes
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create table t4 (col1 blob, primary key(col1(768)))
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character set = latin1 engine = innodb;
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ERROR 42000: Specified key was too long; max key length is 767 bytes
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CREATE TABLE t1
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(
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id INT PRIMARY KEY
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) ENGINE=InnoDB;
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CREATE TABLE t2
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(
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v INT,
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CONSTRAINT c1 FOREIGN KEY (v) REFERENCES t1(id)
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) ENGINE=InnoDB;
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INSERT INTO t2 VALUES(2);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c1` FOREIGN KEY (`v`) REFERENCES `t1` (`id`))
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INSERT INTO t1 VALUES(1);
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INSERT INTO t2 VALUES(1);
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DELETE FROM t1 WHERE id = 1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c1` FOREIGN KEY (`v`) REFERENCES `t1` (`id`))
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DROP TABLE t1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails
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SET FOREIGN_KEY_CHECKS=0;
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DROP TABLE t1;
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SET FOREIGN_KEY_CHECKS=1;
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INSERT INTO t2 VALUES(3);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c1` FOREIGN KEY (`v`) REFERENCES `t1` (`id`))
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DROP TABLE t2;
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create table t1(a int not null) engine=innodb DEFAULT CHARSET=latin1;
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insert into t1 values (1),(2);
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set autocommit=0;
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checksum table t1;
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Table Checksum
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test.t1 1531596814
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insert into t1 values(3);
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checksum table t1;
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Table Checksum
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test.t1 1531596814
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commit;
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checksum table t1;
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Table Checksum
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test.t1 2050879373
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commit;
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drop table t1;
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create table t1(a int not null) engine=innodb DEFAULT CHARSET=latin1;
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insert into t1 values (1),(2);
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set autocommit=1;
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checksum table t1;
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Table Checksum
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test.t1 1531596814
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set autocommit=1;
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insert into t1 values(3);
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checksum table t1;
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Table Checksum
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test.t1 2050879373
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drop table t1;
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set foreign_key_checks=0;
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create table t2 (a int primary key, b int, foreign key (b) references t1(a)) engine = innodb;
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create table t1(a char(10) primary key, b varchar(20)) engine = innodb;
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ERROR HY000: Can't create table 'test.t1' (errno: 150)
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set foreign_key_checks=1;
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drop table t2;
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set foreign_key_checks=0;
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create table t1(a varchar(10) primary key) engine = innodb DEFAULT CHARSET=latin1;
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create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb DEFAULT CHARSET=utf8;
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ERROR HY000: Can't create table 'test.t2' (errno: 150)
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set foreign_key_checks=1;
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drop table t1;
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set foreign_key_checks=0;
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create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb;
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create table t1(a varchar(10) primary key) engine = innodb;
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alter table t1 modify column a int;
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Got one of the listed errors
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set foreign_key_checks=1;
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drop table t2,t1;
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set foreign_key_checks=0;
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create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb DEFAULT CHARSET=latin1;
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create table t1(a varchar(10) primary key) engine = innodb DEFAULT CHARSET=latin1;
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alter table t1 convert to character set utf8;
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set foreign_key_checks=1;
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drop table t2,t1;
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set foreign_key_checks=0;
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create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb DEFAULT CHARSET=latin1;
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create table t3(a varchar(10) primary key) engine = innodb DEFAULT CHARSET=utf8;
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rename table t3 to t1;
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ERROR HY000: Error on rename of './test/t3' to './test/t1' (errno: 150)
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set foreign_key_checks=1;
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drop table t2,t3;
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create table t1(a int primary key) row_format=redundant engine=innodb;
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create table t2(a int primary key,constraint foreign key(a)references t1(a)) row_format=compact engine=innodb;
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create table t3(a int primary key) row_format=compact engine=innodb;
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create table t4(a int primary key,constraint foreign key(a)references t3(a)) row_format=redundant engine=innodb;
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insert into t1 values(1);
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insert into t3 values(1);
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insert into t2 values(2);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`a`) REFERENCES `t1` (`a`))
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insert into t4 values(2);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t4`, CONSTRAINT `t4_ibfk_1` FOREIGN KEY (`a`) REFERENCES `t3` (`a`))
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insert into t2 values(1);
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insert into t4 values(1);
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update t1 set a=2;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`a`) REFERENCES `t1` (`a`))
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update t2 set a=2;
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`a`) REFERENCES `t1` (`a`))
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update t3 set a=2;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t4`, CONSTRAINT `t4_ibfk_1` FOREIGN KEY (`a`) REFERENCES `t3` (`a`))
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update t4 set a=2;
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t4`, CONSTRAINT `t4_ibfk_1` FOREIGN KEY (`a`) REFERENCES `t3` (`a`))
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truncate t1;
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ERROR 42000: Cannot truncate a table referenced in a foreign key constraint (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`a`) REFERENCES `test`.`t1` (`a`))
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truncate t3;
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ERROR 42000: Cannot truncate a table referenced in a foreign key constraint (`test`.`t4`, CONSTRAINT `t4_ibfk_1` FOREIGN KEY (`a`) REFERENCES `test`.`t3` (`a`))
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truncate t2;
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truncate t4;
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truncate t1;
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ERROR 42000: Cannot truncate a table referenced in a foreign key constraint (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`a`) REFERENCES `test`.`t1` (`a`))
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truncate t3;
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ERROR 42000: Cannot truncate a table referenced in a foreign key constraint (`test`.`t4`, CONSTRAINT `t4_ibfk_1` FOREIGN KEY (`a`) REFERENCES `test`.`t3` (`a`))
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drop table t4,t3,t2,t1;
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create table t1 (a varchar(255) character set utf8,
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b varchar(255) character set utf8,
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c varchar(255) character set utf8,
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d varchar(255) character set utf8,
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key (a,b,c,d)) engine=innodb;
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drop table t1;
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create table t1 (a varchar(255) character set utf8,
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b varchar(255) character set utf8,
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c varchar(255) character set utf8,
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d varchar(255) character set utf8,
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e varchar(255) character set utf8,
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key (a,b,c,d,e)) engine=innodb;
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ERROR 42000: Specified key was too long; max key length is 3072 bytes
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create table t1 (s1 varbinary(2),primary key (s1)) engine=innodb;
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create table t2 (s1 binary(2),primary key (s1)) engine=innodb;
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create table t3 (s1 varchar(2) binary,primary key (s1)) engine=innodb;
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create table t4 (s1 char(2) binary,primary key (s1)) engine=innodb;
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insert into t1 values (0x41),(0x4120),(0x4100);
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insert into t2 values (0x41),(0x4120),(0x4100);
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ERROR 23000: Duplicate entry 'A' for key 'PRIMARY'
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insert into t2 values (0x41),(0x4120);
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insert into t3 values (0x41),(0x4120),(0x4100);
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ERROR 23000: Duplicate entry 'A ' for key 'PRIMARY'
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insert into t3 values (0x41),(0x4100);
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insert into t4 values (0x41),(0x4120),(0x4100);
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ERROR 23000: Duplicate entry 'A' for key 'PRIMARY'
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insert into t4 values (0x41),(0x4100);
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select hex(s1) from t1;
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hex(s1)
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41
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4100
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4120
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select hex(s1) from t2;
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hex(s1)
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4100
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4120
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select hex(s1) from t3;
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hex(s1)
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4100
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41
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select hex(s1) from t4;
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hex(s1)
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4100
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41
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drop table t1,t2,t3,t4;
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create table t1 (a int primary key,s1 varbinary(3) not null unique) engine=innodb;
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create table t2 (s1 binary(2) not null, constraint c foreign key(s1) references t1(s1) on update cascade) engine=innodb;
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insert into t1 values(1,0x4100),(2,0x41),(3,0x4120),(4,0x42);
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insert into t2 values(0x42);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c` FOREIGN KEY (`s1`) REFERENCES `t1` (`s1`) ON UPDATE CASCADE)
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insert into t2 values(0x41);
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select hex(s1) from t2;
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hex(s1)
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4100
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update t1 set s1=0x123456 where a=2;
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select hex(s1) from t2;
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hex(s1)
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4100
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update t1 set s1=0x12 where a=1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c` FOREIGN KEY (`s1`) REFERENCES `t1` (`s1`) ON UPDATE CASCADE)
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update t1 set s1=0x12345678 where a=1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c` FOREIGN KEY (`s1`) REFERENCES `t1` (`s1`) ON UPDATE CASCADE)
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update t1 set s1=0x123457 where a=1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c` FOREIGN KEY (`s1`) REFERENCES `t1` (`s1`) ON UPDATE CASCADE)
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update t1 set s1=0x1220 where a=1;
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select hex(s1) from t2;
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hex(s1)
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1220
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update t1 set s1=0x1200 where a=1;
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select hex(s1) from t2;
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hex(s1)
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1200
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update t1 set s1=0x4200 where a=1;
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select hex(s1) from t2;
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hex(s1)
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4200
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delete from t1 where a=1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c` FOREIGN KEY (`s1`) REFERENCES `t1` (`s1`) ON UPDATE CASCADE)
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delete from t1 where a=2;
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update t2 set s1=0x4120;
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delete from t1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c` FOREIGN KEY (`s1`) REFERENCES `t1` (`s1`) ON UPDATE CASCADE)
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delete from t1 where a!=3;
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select a,hex(s1) from t1;
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a hex(s1)
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3 4120
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select hex(s1) from t2;
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hex(s1)
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4120
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drop table t2,t1;
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create table t1 (a int primary key,s1 varchar(2) binary not null unique) engine=innodb;
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create table t2 (s1 char(2) binary not null, constraint c foreign key(s1) references t1(s1) on update cascade) engine=innodb;
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insert into t1 values(1,0x4100),(2,0x41);
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insert into t2 values(0x41);
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select hex(s1) from t2;
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hex(s1)
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41
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update t1 set s1=0x1234 where a=1;
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select hex(s1) from t2;
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hex(s1)
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41
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update t1 set s1=0x12 where a=2;
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select hex(s1) from t2;
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hex(s1)
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12
|
|
delete from t1 where a=1;
|
|
delete from t1 where a=2;
|
|
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `c` FOREIGN KEY (`s1`) REFERENCES `t1` (`s1`) ON UPDATE CASCADE)
|
|
select a,hex(s1) from t1;
|
|
a hex(s1)
|
|
2 12
|
|
select hex(s1) from t2;
|
|
hex(s1)
|
|
12
|
|
drop table t2,t1;
|
|
CREATE TABLE t1(a INT, PRIMARY KEY(a)) ENGINE=InnoDB;
|
|
CREATE TABLE t2(a INT) ENGINE=InnoDB;
|
|
ALTER TABLE t2 ADD FOREIGN KEY (a) REFERENCES t1(a);
|
|
ALTER TABLE t2 DROP FOREIGN KEY t2_ibfk_1;
|
|
ALTER TABLE t2 ADD CONSTRAINT t2_ibfk_0 FOREIGN KEY (a) REFERENCES t1(a);
|
|
ALTER TABLE t2 DROP FOREIGN KEY t2_ibfk_0;
|
|
SHOW CREATE TABLE t2;
|
|
Table Create Table
|
|
t2 CREATE TABLE `t2` (
|
|
`a` int(11) DEFAULT NULL,
|
|
KEY `t2_ibfk_0` (`a`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=latin1
|
|
DROP TABLE t2,t1;
|
|
create table t1(a int not null, b int, c int, d int, primary key(a)) engine=innodb;
|
|
insert into t1(a) values (1),(2),(3);
|
|
commit;
|
|
create trigger t1t before insert on t1 for each row begin set NEW.b = NEW.a * 10 + 5, NEW.c = NEW.a / 10; end |
|
|
set autocommit = 0;
|
|
update t1 set b = 5 where a = 2;
|
|
set autocommit = 0;
|
|
insert into t1(a) values (10),(20),(30),(40),(50),(60),(70),(80),(90),(100),
|
|
(11),(21),(31),(41),(51),(61),(71),(81),(91),(101),
|
|
(12),(22),(32),(42),(52),(62),(72),(82),(92),(102),
|
|
(13),(23),(33),(43),(53),(63),(73),(83),(93),(103),
|
|
(14),(24),(34),(44),(54),(64),(74),(84),(94),(104);
|
|
commit;
|
|
commit;
|
|
drop trigger t1t;
|
|
drop table t1;
|
|
create table t1(a int not null, b int, c int, d int, primary key(a)) engine=innodb;
|
|
create table t2(a int not null, b int, c int, d int, primary key(a)) engine=innodb;
|
|
create table t3(a int not null, b int, c int, d int, primary key(a)) engine=innodb;
|
|
create table t4(a int not null, b int, c int, d int, primary key(a)) engine=innodb;
|
|
create table t5(a int not null, b int, c int, d int, primary key(a)) engine=innodb;
|
|
insert into t1(a) values (1),(2),(3);
|
|
insert into t2(a) values (1),(2),(3);
|
|
insert into t3(a) values (1),(2),(3);
|
|
insert into t4(a) values (1),(2),(3);
|
|
insert into t3(a) values (5),(7),(8);
|
|
insert into t4(a) values (5),(7),(8);
|
|
insert into t5(a) values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11),(12);
|
|
create trigger t1t before insert on t1 for each row begin
|
|
INSERT INTO t2 SET a = NEW.a;
|
|
end |
|
|
create trigger t2t before insert on t2 for each row begin
|
|
DELETE FROM t3 WHERE a = NEW.a;
|
|
end |
|
|
create trigger t3t before delete on t3 for each row begin
|
|
UPDATE t4 SET b = b + 1 WHERE a = OLD.a;
|
|
end |
|
|
create trigger t4t before update on t4 for each row begin
|
|
UPDATE t5 SET b = b + 1 where a = NEW.a;
|
|
end |
|
|
commit;
|
|
set autocommit = 0;
|
|
update t1 set b = b + 5 where a = 1;
|
|
update t2 set b = b + 5 where a = 1;
|
|
update t3 set b = b + 5 where a = 1;
|
|
update t4 set b = b + 5 where a = 1;
|
|
insert into t5(a) values(20);
|
|
set autocommit = 0;
|
|
insert into t1(a) values(7);
|
|
insert into t2(a) values(8);
|
|
delete from t2 where a = 3;
|
|
update t4 set b = b + 1 where a = 3;
|
|
commit;
|
|
drop trigger t1t;
|
|
drop trigger t2t;
|
|
drop trigger t3t;
|
|
drop trigger t4t;
|
|
drop table t1, t2, t3, t4, t5;
|
|
CREATE TABLE t1 (
|
|
field1 varchar(8) NOT NULL DEFAULT '',
|
|
field2 varchar(8) NOT NULL DEFAULT '',
|
|
PRIMARY KEY (field1, field2)
|
|
) ENGINE=InnoDB;
|
|
CREATE TABLE t2 (
|
|
field1 varchar(8) NOT NULL DEFAULT '' PRIMARY KEY,
|
|
FOREIGN KEY (field1) REFERENCES t1 (field1)
|
|
ON DELETE CASCADE ON UPDATE CASCADE
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES ('old', 'somevalu');
|
|
INSERT INTO t1 VALUES ('other', 'anyvalue');
|
|
INSERT INTO t2 VALUES ('old');
|
|
INSERT INTO t2 VALUES ('other');
|
|
UPDATE t1 SET field1 = 'other' WHERE field2 = 'somevalu';
|
|
ERROR 23000: Upholding foreign key constraints for table 't1', entry 'other-somevalu', key 1 would lead to a duplicate entry
|
|
DROP TABLE t2;
|
|
DROP TABLE t1;
|
|
create table t1 (
|
|
c1 bigint not null,
|
|
c2 bigint not null,
|
|
primary key (c1),
|
|
unique key (c2)
|
|
) engine=innodb;
|
|
create table t2 (
|
|
c1 bigint not null,
|
|
primary key (c1)
|
|
) engine=innodb;
|
|
alter table t1 add constraint c2_fk foreign key (c2)
|
|
references t2(c1) on delete cascade;
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` bigint(20) NOT NULL,
|
|
`c2` bigint(20) NOT NULL,
|
|
PRIMARY KEY (`c1`),
|
|
UNIQUE KEY `c2` (`c2`),
|
|
CONSTRAINT `c2_fk` FOREIGN KEY (`c2`) REFERENCES `t2` (`c1`) ON DELETE CASCADE
|
|
) ENGINE=InnoDB DEFAULT CHARSET=latin1
|
|
alter table t1 drop foreign key c2_fk;
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` bigint(20) NOT NULL,
|
|
`c2` bigint(20) NOT NULL,
|
|
PRIMARY KEY (`c1`),
|
|
UNIQUE KEY `c2` (`c2`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=latin1
|
|
drop table t1, t2;
|
|
create table t1(a date) engine=innodb;
|
|
create table t2(a date, key(a)) engine=innodb;
|
|
insert into t1 values('2005-10-01');
|
|
insert into t2 values('2005-10-01');
|
|
select * from t1, t2
|
|
where t2.a between t1.a - interval 2 day and t1.a + interval 2 day;
|
|
a a
|
|
2005-10-01 2005-10-01
|
|
drop table t1, t2;
|
|
create table t1 (id int not null, f_id int not null, f int not null,
|
|
primary key(f_id, id)) engine=innodb;
|
|
create table t2 (id int not null,s_id int not null,s varchar(200),
|
|
primary key(id)) engine=innodb;
|
|
INSERT INTO t1 VALUES (8, 1, 3);
|
|
INSERT INTO t1 VALUES (1, 2, 1);
|
|
INSERT INTO t2 VALUES (1, 0, '');
|
|
INSERT INTO t2 VALUES (8, 1, '');
|
|
commit;
|
|
DELETE ml.* FROM t1 AS ml LEFT JOIN t2 AS mm ON (mm.id=ml.id)
|
|
WHERE mm.id IS NULL;
|
|
select ml.* from t1 as ml left join t2 as mm on (mm.id=ml.id)
|
|
where mm.id is null lock in share mode;
|
|
id f_id f
|
|
drop table t1,t2;
|
|
create table t1(a int not null, b int, primary key(a)) engine=innodb;
|
|
insert into t1 values(1,1),(2,2),(3,1),(4,2),(5,1),(6,2),(7,3);
|
|
commit;
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
update t1 set b = 5 where b = 1;
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
select * from t1 where a = 7 and b = 3 for update;
|
|
a b
|
|
7 3
|
|
commit;
|
|
commit;
|
|
drop table t1;
|
|
create table t1(a int not null, b int, primary key(a)) engine=innodb;
|
|
insert into t1 values(1,1),(2,2),(3,1),(4,2),(5,1),(6,2);
|
|
commit;
|
|
set autocommit = 0;
|
|
select * from t1 lock in share mode;
|
|
a b
|
|
1 1
|
|
2 2
|
|
3 1
|
|
4 2
|
|
5 1
|
|
6 2
|
|
update t1 set b = 5 where b = 1;
|
|
set autocommit = 0;
|
|
select * from t1 where a = 2 and b = 2 for update;
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
commit;
|
|
commit;
|
|
drop table t1;
|
|
create table t1(a int not null, b int, primary key(a)) engine=innodb;
|
|
insert into t1 values (1,2),(5,3),(4,2);
|
|
create table t2(d int not null, e int, primary key(d)) engine=innodb;
|
|
insert into t2 values (8,6),(12,1),(3,1);
|
|
commit;
|
|
set autocommit = 0;
|
|
select * from t2 for update;
|
|
d e
|
|
3 1
|
|
8 6
|
|
12 1
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
insert into t1 select * from t2;
|
|
update t1 set b = (select e from t2 where a = d);
|
|
create table t3(d int not null, e int, primary key(d)) engine=innodb
|
|
select * from t2;
|
|
commit;
|
|
commit;
|
|
drop table t1, t2, t3;
|
|
create table t1(a int not null, b int, primary key(a)) engine=innodb;
|
|
insert into t1 values (1,2),(5,3),(4,2);
|
|
create table t2(a int not null, b int, primary key(a)) engine=innodb;
|
|
insert into t2 values (8,6),(12,1),(3,1);
|
|
create table t3(d int not null, b int, primary key(d)) engine=innodb;
|
|
insert into t3 values (8,6),(12,1),(3,1);
|
|
create table t5(a int not null, b int, primary key(a)) engine=innodb;
|
|
insert into t5 values (1,2),(5,3),(4,2);
|
|
create table t6(d int not null, e int, primary key(d)) engine=innodb;
|
|
insert into t6 values (8,6),(12,1),(3,1);
|
|
create table t8(a int not null, b int, primary key(a)) engine=innodb;
|
|
insert into t8 values (1,2),(5,3),(4,2);
|
|
create table t9(d int not null, e int, primary key(d)) engine=innodb;
|
|
insert into t9 values (8,6),(12,1),(3,1);
|
|
commit;
|
|
set autocommit = 0;
|
|
select * from t2 for update;
|
|
a b
|
|
3 1
|
|
8 6
|
|
12 1
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE;
|
|
insert into t1 select * from t2;
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE;
|
|
update t3 set b = (select b from t2 where a = d);
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE;
|
|
create table t4(a int not null, b int, primary key(a)) engine=innodb select * from t2;
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
insert into t5 (select * from t2 lock in share mode);
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
update t6 set e = (select b from t2 where a = d lock in share mode);
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
create table t7(a int not null, b int, primary key(a)) engine=innodb select * from t2 lock in share mode;
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
insert into t8 (select * from t2 for update);
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
update t9 set e = (select b from t2 where a = d for update);
|
|
SET binlog_format='MIXED';
|
|
set autocommit = 0;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
create table t10(a int not null, b int, primary key(a)) engine=innodb select * from t2 for update;
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
commit;
|
|
drop table t1, t2, t3, t5, t6, t8, t9;
|
|
CREATE TABLE t1 (DB_ROW_ID int) engine=innodb;
|
|
ERROR 42000: Incorrect column name 'DB_ROW_ID'
|
|
CREATE TABLE t1 (
|
|
a BIGINT(20) NOT NULL,
|
|
PRIMARY KEY (a)
|
|
) ENGINE=INNODB DEFAULT CHARSET=UTF8;
|
|
CREATE TABLE t2 (
|
|
a BIGINT(20) NOT NULL,
|
|
b VARCHAR(128) NOT NULL,
|
|
c TEXT NOT NULL,
|
|
PRIMARY KEY (a,b),
|
|
KEY idx_t2_b_c (b,c(200)),
|
|
CONSTRAINT t_fk FOREIGN KEY (a) REFERENCES t1 (a)
|
|
ON DELETE CASCADE
|
|
) ENGINE=INNODB DEFAULT CHARSET=UTF8;
|
|
INSERT INTO t1 VALUES (1);
|
|
INSERT INTO t2 VALUES (1, 'bar', 'vbar');
|
|
INSERT INTO t2 VALUES (1, 'BAR2', 'VBAR');
|
|
INSERT INTO t2 VALUES (1, 'bar_bar', 'bibi');
|
|
INSERT INTO t2 VALUES (1, 'customer_over', '1');
|
|
SELECT * FROM t2 WHERE b = 'customer_over';
|
|
a b c
|
|
1 customer_over 1
|
|
SELECT * FROM t2 WHERE BINARY b = 'customer_over';
|
|
a b c
|
|
1 customer_over 1
|
|
SELECT DISTINCT p0.a FROM t2 p0 WHERE p0.b = 'customer_over';
|
|
a
|
|
1
|
|
/* Bang: Empty result set, above was expected: */
|
|
SELECT DISTINCT p0.a FROM t2 p0 WHERE BINARY p0.b = 'customer_over';
|
|
a
|
|
1
|
|
SELECT p0.a FROM t2 p0 WHERE BINARY p0.b = 'customer_over';
|
|
a
|
|
1
|
|
drop table t2, t1;
|
|
CREATE TABLE t1 ( a int ) ENGINE=innodb;
|
|
BEGIN;
|
|
INSERT INTO t1 VALUES (1);
|
|
OPTIMIZE TABLE t1;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 optimize note Table does not support optimize, doing recreate + analyze instead
|
|
test.t1 optimize status OK
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1 (id int PRIMARY KEY, f int NOT NULL, INDEX(f)) ENGINE=InnoDB;
|
|
CREATE TABLE t2 (id int PRIMARY KEY, f INT NOT NULL,
|
|
CONSTRAINT t2_t1 FOREIGN KEY (id) REFERENCES t1 (id)
|
|
ON DELETE CASCADE ON UPDATE CASCADE) ENGINE=InnoDB;
|
|
ALTER TABLE t2 ADD FOREIGN KEY (f) REFERENCES t1 (f) ON
|
|
DELETE CASCADE ON UPDATE CASCADE;
|
|
SHOW CREATE TABLE t2;
|
|
Table Create Table
|
|
t2 CREATE TABLE `t2` (
|
|
`id` int(11) NOT NULL,
|
|
`f` int(11) NOT NULL,
|
|
PRIMARY KEY (`id`),
|
|
KEY `f` (`f`),
|
|
CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`f`) REFERENCES `t1` (`f`) ON DELETE CASCADE ON UPDATE CASCADE,
|
|
CONSTRAINT `t2_t1` FOREIGN KEY (`id`) REFERENCES `t1` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
|
|
) ENGINE=InnoDB DEFAULT CHARSET=latin1
|
|
DROP TABLE t2, t1;
|
|
CREATE TABLE t1 (a INT, INDEX(a)) ENGINE=InnoDB;
|
|
CREATE TABLE t2 (a INT, INDEX(a)) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (1);
|
|
INSERT INTO t2 VALUES (1);
|
|
ALTER TABLE t2 ADD FOREIGN KEY (a) REFERENCES t1 (a) ON DELETE SET NULL;
|
|
ALTER TABLE t2 MODIFY a INT NOT NULL;
|
|
ERROR HY000: Error on rename of '#sql-temporary' to './test/t2' (errno: 150)
|
|
DELETE FROM t1;
|
|
DROP TABLE t2,t1;
|
|
CREATE TABLE t1 (a VARCHAR(5) COLLATE utf8_unicode_ci PRIMARY KEY)
|
|
ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (0xEFBCA4EFBCA4EFBCA4);
|
|
DELETE FROM t1;
|
|
INSERT INTO t1 VALUES ('DDD');
|
|
SELECT * FROM t1;
|
|
a
|
|
DDD
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1 (id int PRIMARY KEY AUTO_INCREMENT) ENGINE=InnoDB
|
|
AUTO_INCREMENT=42;
|
|
INSERT INTO t1 VALUES (0),(347),(0);
|
|
SELECT * FROM t1;
|
|
id
|
|
42
|
|
347
|
|
348
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`id` int(11) NOT NULL AUTO_INCREMENT,
|
|
PRIMARY KEY (`id`)
|
|
) ENGINE=InnoDB AUTO_INCREMENT=349 DEFAULT CHARSET=latin1
|
|
CREATE TABLE t2 (id int PRIMARY KEY) ENGINE=InnoDB;
|
|
INSERT INTO t2 VALUES(42),(347),(348);
|
|
ALTER TABLE t1 ADD CONSTRAINT t1_t2 FOREIGN KEY (id) REFERENCES t2(id);
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`id` int(11) NOT NULL AUTO_INCREMENT,
|
|
PRIMARY KEY (`id`),
|
|
CONSTRAINT `t1_t2` FOREIGN KEY (`id`) REFERENCES `t2` (`id`)
|
|
) ENGINE=InnoDB AUTO_INCREMENT=349 DEFAULT CHARSET=latin1
|
|
DROP TABLE t1,t2;
|
|
SET innodb_strict_mode=ON;
|
|
CREATE TABLE t1 (
|
|
c01 CHAR(255), c02 CHAR(255), c03 CHAR(255), c04 CHAR(255),
|
|
c05 CHAR(255), c06 CHAR(255), c07 CHAR(255), c08 CHAR(255),
|
|
c09 CHAR(255), c10 CHAR(255), c11 CHAR(255), c12 CHAR(255),
|
|
c13 CHAR(255), c14 CHAR(255), c15 CHAR(255), c16 CHAR(255),
|
|
c17 CHAR(255), c18 CHAR(255), c19 CHAR(255), c20 CHAR(255),
|
|
c21 CHAR(255), c22 CHAR(255), c23 CHAR(255), c24 CHAR(255),
|
|
c25 CHAR(255), c26 CHAR(255), c27 CHAR(255), c28 CHAR(255),
|
|
c29 CHAR(255), c30 CHAR(255), c31 CHAR(255), c32 CHAR(255)
|
|
) ENGINE = InnoDB;
|
|
ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
|
|
SET innodb_strict_mode=OFF;
|
|
DROP TABLE IF EXISTS t1;
|
|
Warnings:
|
|
Note 1051 Unknown table 't1'
|
|
CREATE TABLE t1(
|
|
id BIGINT(20) NOT NULL AUTO_INCREMENT PRIMARY KEY
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES(-10);
|
|
SELECT * FROM t1;
|
|
id
|
|
-10
|
|
INSERT INTO t1 VALUES(NULL);
|
|
SELECT * FROM t1;
|
|
id
|
|
-10
|
|
1
|
|
DROP TABLE t1;
|
|
SET binlog_format='MIXED';
|
|
SET TX_ISOLATION='read-committed';
|
|
SET AUTOCOMMIT=0;
|
|
DROP TABLE IF EXISTS t1, t2;
|
|
Warnings:
|
|
Note 1051 Unknown table 't1'
|
|
Note 1051 Unknown table 't2'
|
|
CREATE TABLE t1 ( a int ) ENGINE=InnoDB;
|
|
CREATE TABLE t2 LIKE t1;
|
|
SELECT * FROM t2;
|
|
a
|
|
SET binlog_format='MIXED';
|
|
SET TX_ISOLATION='read-committed';
|
|
SET AUTOCOMMIT=0;
|
|
INSERT INTO t1 VALUES (1);
|
|
COMMIT;
|
|
SELECT * FROM t1 WHERE a=1;
|
|
a
|
|
1
|
|
SET binlog_format='MIXED';
|
|
SET TX_ISOLATION='read-committed';
|
|
SET AUTOCOMMIT=0;
|
|
SELECT * FROM t2;
|
|
a
|
|
SET binlog_format='MIXED';
|
|
SET TX_ISOLATION='read-committed';
|
|
SET AUTOCOMMIT=0;
|
|
INSERT INTO t1 VALUES (2);
|
|
COMMIT;
|
|
SELECT * FROM t1 WHERE a=2;
|
|
a
|
|
2
|
|
SELECT * FROM t1 WHERE a=2;
|
|
a
|
|
2
|
|
DROP TABLE t1;
|
|
DROP TABLE t2;
|
|
create table t1 (i int, j int) engine=innodb;
|
|
insert into t1 (i, j) values (1, 1), (2, 2);
|
|
update t1 set j = 2;
|
|
affected rows: 1
|
|
info: Rows matched: 2 Changed: 1 Warnings: 0
|
|
drop table t1;
|
|
create table t1 (id int) comment='this is a comment' engine=innodb;
|
|
select table_comment, data_free > 0 as data_free_is_set
|
|
from information_schema.tables
|
|
where table_schema='test' and table_name = 't1';
|
|
table_comment data_free_is_set
|
|
this is a comment 1
|
|
drop table t1;
|
|
CREATE TABLE t1 (
|
|
c1 INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
|
|
c2 VARCHAR(128) NOT NULL,
|
|
PRIMARY KEY(c1)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=100;
|
|
CREATE TABLE t2 (
|
|
c1 INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
|
|
c2 INT(10) UNSIGNED DEFAULT NULL,
|
|
PRIMARY KEY(c1)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=200;
|
|
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE table_name = 't2';
|
|
AUTO_INCREMENT
|
|
200
|
|
ALTER TABLE t2 ADD CONSTRAINT t1_t2_1 FOREIGN KEY(c1) REFERENCES t1(c1);
|
|
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE table_name = 't2';
|
|
AUTO_INCREMENT
|
|
200
|
|
DROP TABLE t2;
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1 (c1 int default NULL,
|
|
c2 int default NULL
|
|
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
|
|
TRUNCATE TABLE t1;
|
|
affected rows: 0
|
|
INSERT INTO t1 VALUES (1, 1), (2, 2), (3, 3), (4, 4), (5, 5);
|
|
affected rows: 5
|
|
info: Records: 5 Duplicates: 0 Warnings: 0
|
|
TRUNCATE TABLE t1;
|
|
affected rows: 0
|
|
DROP TABLE t1;
|
|
Variable_name Value
|
|
Handler_update 0
|
|
Variable_name Value
|
|
Handler_delete 0
|
|
Variable_name Value
|
|
Handler_update 1
|
|
Variable_name Value
|
|
Handler_delete 1
|