mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 13:32:33 +01:00
100 lines
2.5 KiB
Text
100 lines
2.5 KiB
Text
drop table if exists t1,t2;
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create table t1 (name char(20) not null, primary key (name));
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create table t2 (name char(20) binary not null, primary key (name));
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insert into t1 values ("å");
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insert into t1 values ("ä");
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insert into t1 values ("ö");
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insert into t2 select * from t1;
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select * from t1 order by name;
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name
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å
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ä
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ö
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select concat("*",name,"*") from t1 order by 1;
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concat("*",name,"*")
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*å*
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*ä*
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*ö*
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select min(name),min(concat("*",name,"*")),max(name),max(concat("*",name,"*")) from t1;
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min(name) min(concat("*",name,"*")) max(name) max(concat("*",name,"*"))
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å *å* ö *ö*
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select * from t2 order by name;
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name
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ä
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å
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ö
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select concat("*",name,"*") from t2 order by 1;
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concat("*",name,"*")
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*ä*
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*å*
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*ö*
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select min(name),min(concat("*",name,"*")),max(name),max(concat("*",name,"*")) from t2;
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min(name) min(concat("*",name,"*")) max(name) max(concat("*",name,"*"))
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ä *ä* ö *ö*
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select name from t1 where name between 'Ä' and 'Ö';
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name
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ä
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ö
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select name from t2 where name between 'ä' and 'ö';
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name
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ä
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å
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ö
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select name from t2 where name between 'Ä' and 'Ö';
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name
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drop table t1,t2;
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create table t1 (a char(10) not null, b char(10) binary not null,key (a), key(b));
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insert into t1 values ("hello ","hello "),("hello2 ","hello2 ");
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select * from t1 where a="hello";
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a b
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hello hello
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select * from t1 where a="hello ";
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a b
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hello hello
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select * from t1 ignore index (a) where a="hello ";
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a b
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hello hello
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select * from t1 where b="hello";
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a b
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hello hello
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select * from t1 where b="hello ";
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a b
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hello hello
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select * from t1 ignore index (b) where b="hello ";
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a b
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alter table t1 modify b tinytext not null, drop key b, add key (b(100));
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select * from t1 where b="hello ";
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a b
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hello hello
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select * from t1 ignore index (b) where b="hello ";
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a b
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hello hello
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drop table t1;
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create table t1 (b char(8));
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insert into t1 values(NULL);
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select b from t1 where binary b like '';
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b
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select b from t1 group by binary b like '';
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b
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NULL
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select b from t1 having binary b like '';
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b
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drop table t1;
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create table t1( firstname char(20), lastname char(20));
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insert into t1 values ("john","doe"),("John","Doe");
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select * from t1 where firstname='john' and firstname like binary 'john';
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firstname lastname
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john doe
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select * from t1 where firstname='john' and binary 'john' = firstname;
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firstname lastname
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john doe
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select * from t1 where firstname='john' and firstname = binary 'john';
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firstname lastname
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john doe
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select * from t1 where firstname='John' and firstname like binary 'john';
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firstname lastname
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john doe
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select * from t1 where firstname='john' and firstname like binary 'John';
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firstname lastname
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John Doe
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drop table t1;
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