mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 05:22:25 +01:00
d576cd65d0
LOCATE() is now case sensitive BUILD/compile-alpha-cxx: Don't build manager because it fails with linker error on Linux Alpha Docs/manual.texi: Changelog myisam/mi_check.c: Fix bug when repairing compressed MyISAM files myisam/mi_open.c: Fix bug when repairing compressed MyISAM files myisam/mi_packrec.c: Fix bug when repairing compressed MyISAM files myisam/myisamchk.c: Fix bug when repairing compressed MyISAM files myisam/myisamdef.h: Fix bug when repairing compressed MyISAM files mysql-test/r/func_group.result: Fix result for new RND function mysql-test/r/func_math.result: Fix result for new RND function mysql-test/r/func_str.result: test of new locate() mysql-test/t/func_str.test: test of new locate() sql/item_func.cc: LOCATE() is now case sensitive sql/sql_string.cc: LOCATE() is now case sensitive sql/sql_string.h: LOCATE() is now case sensitive
152 lines
3.8 KiB
Text
152 lines
3.8 KiB
Text
create table t1 (grp int, a bigint unsigned, c char(10) not null);
|
|
insert into t1 values (1,1,"a");
|
|
insert into t1 values (2,2,"b");
|
|
insert into t1 values (2,3,"c");
|
|
insert into t1 values (3,4,"E");
|
|
insert into t1 values (3,5,"C");
|
|
insert into t1 values (3,6,"D");
|
|
select a,c,sum(a) from t1 group by a;
|
|
a c sum(a)
|
|
1 a 1
|
|
2 b 2
|
|
3 c 3
|
|
4 E 4
|
|
5 C 5
|
|
6 D 6
|
|
select a,c,sum(a) from t1 where a > 10 group by a;
|
|
a c sum(a)
|
|
select sum(a) from t1 where a > 10;
|
|
sum(a)
|
|
NULL
|
|
select a from t1 order by rand(10);
|
|
a
|
|
2
|
|
6
|
|
1
|
|
3
|
|
5
|
|
4
|
|
select distinct a from t1 order by rand(10);
|
|
a
|
|
2
|
|
6
|
|
1
|
|
3
|
|
5
|
|
4
|
|
select count(distinct a),count(distinct grp) from t1;
|
|
count(distinct a) count(distinct grp)
|
|
6 3
|
|
insert into t1 values (null,null,'');
|
|
select count(distinct a),count(distinct grp) from t1;
|
|
count(distinct a) count(distinct grp)
|
|
6 3
|
|
select sum(a),count(a),avg(a),std(a),bit_or(a),bit_and(a),min(a),max(a),min(c),max(c) from t1;
|
|
sum(a) count(a) avg(a) std(a) bit_or(a) bit_and(a) min(a) max(a) min(c) max(c)
|
|
21 6 3.5000 1.7078 7 0 1 6 E
|
|
select grp, sum(a),count(a),avg(a),std(a),bit_or(a),bit_and(a),min(a),max(a),min(c),max(c) from t1 group by grp;
|
|
grp sum(a) count(a) avg(a) std(a) bit_or(a) bit_and(a) min(a) max(a) min(c) max(c)
|
|
NULL 0 0 NULL NULL 0 0 NULL NULL
|
|
1 1 1 1.0000 0.0000 1 1 1 1 a a
|
|
2 5 2 2.5000 0.5000 3 2 2 3 b c
|
|
3 15 3 5.0000 0.8165 7 4 4 6 C E
|
|
select grp, sum(a)+count(a)+avg(a)+std(a)+bit_or(a)+bit_and(a)+min(a)+max(a)+min(c)+max(c) as sum from t1 group by grp;
|
|
grp sum
|
|
NULL NULL
|
|
1 7
|
|
2 20
|
|
3 44.816496580928
|
|
create table t2 (grp int, a bigint unsigned, c char(10));
|
|
insert into t2 select grp,max(a)+max(grp),max(c) from t1 group by grp;
|
|
replace into t2 select grp, a, c from t1 limit 2,1;
|
|
select * from t2;
|
|
grp a c
|
|
NULL NULL
|
|
1 2 a
|
|
2 5 c
|
|
3 9 E
|
|
2 3 c
|
|
drop table t1,t2;
|
|
CREATE TABLE t1 (id int(11),value1 float(10,2));
|
|
INSERT INTO t1 VALUES (1,0.00),(1,1.00), (1,2.00), (2,10.00), (2,11.00), (2,12.00);
|
|
CREATE TABLE t2 (id int(11),name char(20));
|
|
INSERT INTO t2 VALUES (1,'Set One'),(2,'Set Two');
|
|
select id, avg(value1), std(value1) from t1 group by id;
|
|
id avg(value1) std(value1)
|
|
1 1.000000 0.816497
|
|
2 11.000000 0.816497
|
|
select name, avg(value1), std(value1) from t1, t2 where t1.id = t2.id group by t1.id;
|
|
name avg(value1) std(value1)
|
|
Set One 1.000000 0.816497
|
|
Set Two 11.000000 0.816497
|
|
drop table t1,t2;
|
|
create table t1 (id int not null);
|
|
create table t2 (id int not null,rating int null);
|
|
insert into t1 values(1),(2),(3);
|
|
insert into t2 values(1, 3),(2, NULL),(2, NULL),(3, 2),(3, NULL);
|
|
select t1.id, avg(rating) from t1 left join t2 on ( t1.id = t2.id ) group by t1.id;
|
|
id avg(rating)
|
|
1 3.0000
|
|
2 NULL
|
|
3 2.0000
|
|
drop table t1,t2;
|
|
create table t1 (a smallint(6) primary key, c char(10), b text);
|
|
INSERT INTO t1 VALUES (1,'1','1');
|
|
INSERT INTO t1 VALUES (2,'2','2');
|
|
INSERT INTO t1 VALUES (4,'4','4');
|
|
select count(*) from t1;
|
|
count(*)
|
|
3
|
|
select count(*) from t1 where a = 1;
|
|
count(*)
|
|
1
|
|
select count(*) from t1 where a = 100;
|
|
count(*)
|
|
0
|
|
select count(*) from t1 where a >= 10;
|
|
count(*)
|
|
0
|
|
select count(a) from t1 where a = 1;
|
|
count(a)
|
|
1
|
|
select count(a) from t1 where a = 100;
|
|
count(a)
|
|
0
|
|
select count(a) from t1 where a >= 10;
|
|
count(a)
|
|
0
|
|
select count(b) from t1 where b >= 2;
|
|
count(b)
|
|
2
|
|
select count(b) from t1 where b >= 10;
|
|
count(b)
|
|
0
|
|
select count(c) from t1 where c = 10;
|
|
count(c)
|
|
0
|
|
drop table t1;
|
|
CREATE TABLE t1 (d DATETIME, i INT);
|
|
INSERT INTO t1 VALUES (NOW(), 1);
|
|
SELECT COUNT(i), i, COUNT(i)*i FROM t1 GROUP BY i;
|
|
COUNT(i) i COUNT(i)*i
|
|
1 1 1
|
|
SELECT COUNT(i), (i+0), COUNT(i)*(i+0) FROM t1 GROUP BY i;
|
|
COUNT(i) (i+0) COUNT(i)*(i+0)
|
|
1 1 1
|
|
DROP TABLE t1;
|
|
create table t1 (
|
|
num float(5,2),
|
|
user char(20)
|
|
);
|
|
insert into t1 values (10.3,'nem'),(20.53,'monty'),(30.23,'sinisa');
|
|
insert into t1 values (30.13,'nem'),(20.98,'monty'),(10.45,'sinisa');
|
|
insert into t1 values (5.2,'nem'),(8.64,'monty'),(11.12,'sinisa');
|
|
select sum(num) from t1;
|
|
sum(num)
|
|
147.58
|
|
select sum(num) from t1 group by user;
|
|
sum(num)
|
|
50.15
|
|
45.63
|
|
51.80
|
|
drop table t1;
|