func_in.result

来自「视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.」· RESULT 代码 · 共 489 行

drop table if exists t1, t2;
select 1 in (1,2,3);
1 in (1,2,3)
1
select 10 in (1,2,3);
10 in (1,2,3)
0
select NULL in (1,2,3);
NULL in (1,2,3)
NULL
select 1 in (1,NULL,3);
1 in (1,NULL,3)
1
select 3 in (1,NULL,3);
3 in (1,NULL,3)
1
select 10 in (1,NULL,3);
10 in (1,NULL,3)
NULL
select 1.5 in (1.5,2.5,3.5);
1.5 in (1.5,2.5,3.5)
1
select 10.5 in (1.5,2.5,3.5);
10.5 in (1.5,2.5,3.5)
0
select NULL in (1.5,2.5,3.5);
NULL in (1.5,2.5,3.5)
NULL
select 1.5 in (1.5,NULL,3.5);
1.5 in (1.5,NULL,3.5)
1
select 3.5 in (1.5,NULL,3.5);
3.5 in (1.5,NULL,3.5)
1
select 10.5 in (1.5,NULL,3.5);
10.5 in (1.5,NULL,3.5)
NULL
CREATE TABLE t1 (a int, b int, c int);
insert into t1 values (1,2,3), (1,NULL,3);
select 1 in (a,b,c) from t1;
1 in (a,b,c)
1
1
select 3 in (a,b,c) from t1;
3 in (a,b,c)
1
1
select 10 in (a,b,c) from t1;
10 in (a,b,c)
0
NULL
select NULL in (a,b,c) from t1;
NULL in (a,b,c)
NULL
NULL
drop table t1;
CREATE TABLE t1 (a float, b float, c float);
insert into t1 values (1.5,2.5,3.5), (1.5,NULL,3.5);
select 1.5 in (a,b,c) from t1;
1.5 in (a,b,c)
1
1
select 3.5 in (a,b,c) from t1;
3.5 in (a,b,c)
1
1
select 10.5 in (a,b,c) from t1;
10.5 in (a,b,c)
0
NULL
drop table t1;
CREATE TABLE t1 (a varchar(10), b varchar(10), c varchar(10));
insert into t1 values ('A','BC','EFD'), ('A',NULL,'EFD');
select 'A' in (a,b,c) from t1;
'A' in (a,b,c)
1
1
select 'EFD' in (a,b,c) from t1;
'EFD' in (a,b,c)
1
1
select 'XSFGGHF' in (a,b,c) from t1;
'XSFGGHF' in (a,b,c)
0
NULL
drop table t1;
CREATE TABLE t1 (field char(1));
INSERT INTO t1 VALUES ('A'),(NULL);
SELECT * from t1 WHERE field IN (NULL);
field
SELECT * from t1 WHERE field NOT IN (NULL);
field
SELECT * from t1 where field = field;
field
A
SELECT * from t1 where field <=> field;
field
A
NULL
DELETE FROM t1 WHERE field NOT IN (NULL);
SELECT * FROM t1;
field
A
NULL
drop table t1;
create table t1 (id int(10) primary key);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9);
select * from t1 where id in (2,5,9);
id
2
5
9
drop table t1;
create table t1 (
a char(1) character set latin1 collate latin1_general_ci,
b char(1) character set latin1 collate latin1_swedish_ci,
c char(1) character set latin1 collate latin1_danish_ci
);
insert into t1 values ('A','B','C');
insert into t1 values ('a','c','c');
select * from t1 where a in (b);
ERROR HY000: Illegal mix of collations (latin1_general_ci,IMPLICIT) and (latin1_swedish_ci,IMPLICIT) for operation '='
select * from t1 where a in (b,c);
ERROR HY000: Illegal mix of collations (latin1_general_ci,IMPLICIT), (latin1_swedish_ci,IMPLICIT), (latin1_danish_ci,IMPLICIT) for operation ' IN '
select * from t1 where 'a' in (a,b,c);
ERROR HY000: Illegal mix of collations for operation ' IN '
select * from t1 where 'a' in (a);
a	b	c
A	B	C
a	c	c
select * from t1 where a in ('a');
a	b	c
A	B	C
a	c	c
select * from t1 where 'a' collate latin1_general_ci in (a,b,c);
a	b	c
A	B	C
a	c	c
select * from t1 where 'a' collate latin1_bin in (a,b,c);
a	b	c
a	c	c
select * from t1 where 'a' in (a,b,c collate latin1_bin);
a	b	c
a	c	c
explain extended select * from t1 where 'a' in (a,b,c collate latin1_bin);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1` where (_latin1'a' in (`test`.`t1`.`a`,`test`.`t1`.`b`,(`test`.`t1`.`c` collate latin1_bin)))
drop table t1;
set names utf8;
create table t1 (a char(10) character set utf8 not null);
insert into t1 values ('bbbb'),(_koi8r'妹妹'),(_latin1'哪哪');
select a from t1 where a in ('bbbb',_koi8r'妹妹',_latin1'哪哪') order by a;
a
脛脛脛脛
bbbb
褑褑褑褑
drop table t1;
create table t1 (a char(10) character set latin1 not null);
insert into t1 values ('a'),('b'),('c');
select a from t1 where a IN ('a','b','c') order by a;
a
a
b
c
drop table t1;
set names latin1;
select '1.0' in (1,2);
'1.0' in (1,2)
1
select 1 in ('1.0',2);
1 in ('1.0',2)
1
select 1 in (1,'2.0');
1 in (1,'2.0')
1
select 1 in ('1.0',2.0);
1 in ('1.0',2.0)
1
select 1 in (1.0,'2.0');
1 in (1.0,'2.0')
1
select 1 in ('1.1',2);
1 in ('1.1',2)
0
select 1 in ('1.1',2.0);
1 in ('1.1',2.0)
0
create table t1 (a char(2) character set binary);
insert into t1 values ('aa'), ('bb');
select * from t1 where a in (NULL, 'aa');
a
aa
drop table t1;
create table t1 (id int, key(id));
insert into t1 values (1),(2),(3);
select count(*) from t1 where id not in (1);
count(*)
2
select count(*) from t1 where id not in (1,2);
count(*)
1
drop table t1;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 SELECT 1 IN (2, NULL);
SELECT should return NULL.
SELECT * FROM t1;
1 IN (2, NULL)
NULL
DROP TABLE t1;
End of 4.1 tests
CREATE TABLE t1 (a int PRIMARY KEY);
INSERT INTO t1 VALUES (44), (45), (46);
SELECT * FROM t1 WHERE a IN (45);
a
45
SELECT * FROM t1 WHERE a NOT IN (0, 45);
a
44
46
SELECT * FROM t1 WHERE a NOT IN (45);
a
44
46
CREATE VIEW v1 AS SELECT * FROM t1 WHERE a NOT IN (45);
SHOW CREATE VIEW v1;
View	Create View
v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`a` AS `a` from `t1` where (`t1`.`a` <> 45)
SELECT * FROM v1;
a
44
46
DROP VIEW v1;
DROP TABLE t1;
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2 (a int, filler char(200), key(a));
insert into t2 select C.a*2,   'no'  from t1 A, t1 B, t1 C;
insert into t2 select C.a*2+1, 'yes' from t1 C;
explain 
select * from t2 where a NOT IN (0, 2,4,6,8,10,12,14,16,18);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t2	range	a	a	5	NULL	12	Using where
select * from t2 where a NOT IN (0, 2,4,6,8,10,12,14,16,18);
a	filler
1	yes
3	yes
5	yes
7	yes
9	yes
11	yes
13	yes
15	yes
17	yes
19	yes
explain select * from t2 force index(a) where a NOT IN (2,2,2,2,2,2);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t2	range	a	a	5	NULL	912	Using where
explain select * from t2 force index(a) where a <> 2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t2	range	a	a	5	NULL	912	Using where
drop table t2;
create table t2 (a datetime, filler char(200), key(a));
insert into t2 select '2006-04-25 10:00:00' + interval C.a minute,
'no'  from t1 A, t1 B, t1 C where C.a % 2 = 0;
insert into t2 select '2006-04-25 10:00:00' + interval C.a*2+1 minute,
'yes' from t1 C;
explain 
select * from t2 where a NOT IN (
'2006-04-25 10:00:00','2006-04-25 10:02:00','2006-04-25 10:04:00', 
'2006-04-25 10:06:00', '2006-04-25 10:08:00');
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t2	range	a	a	9	NULL	18	Using where
select * from t2 where a NOT IN (
'2006-04-25 10:00:00','2006-04-25 10:02:00','2006-04-25 10:04:00', 
'2006-04-25 10:06:00', '2006-04-25 10:08:00');
a	filler
2006-04-25 10:01:00	yes
2006-04-25 10:03:00	yes
2006-04-25 10:05:00	yes
2006-04-25 10:07:00	yes
2006-04-25 10:09:00	yes
2006-04-25 10:11:00	yes
2006-04-25 10:13:00	yes
2006-04-25 10:15:00	yes
2006-04-25 10:17:00	yes
2006-04-25 10:19:00	yes
drop table t2;
create table t2 (a varchar(10), filler char(200), key(a));
insert into t2 select 'foo', 'no' from t1 A, t1 B;
insert into t2 select 'barbar', 'no' from t1 A, t1 B;
insert into t2 select 'bazbazbaz', 'no' from t1 A, t1 B;
insert into t2 values ('fon', '1'), ('fop','1'), ('barbaq','1'), 
('barbas','1'), ('bazbazbay', '1'),('zz','1');
explain select * from t2 where a not in('foo','barbar', 'bazbazbaz');
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t2	range	a	a	13	NULL	7	Using where
drop table t2;
create table t2 (a decimal(10,5), filler char(200), key(a));
insert into t2 select 345.67890, 'no' from t1 A, t1 B;
insert into t2 select 43245.34, 'no' from t1 A, t1 B;
insert into t2 select 64224.56344, 'no' from t1 A, t1 B;
insert into t2 values (0, '1'), (22334.123,'1'), (33333,'1'), 
(55555,'1'), (77777, '1');
explain
select * from t2 where a not in (345.67890, 43245.34, 64224.56344);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t2	range	a	a	7	NULL	7	Using where
select * from t2 where a not in (345.67890, 43245.34, 64224.56344);
a	filler
0.00000	1
22334.12300	1
33333.00000	1
55555.00000	1
77777.00000	1
drop table t2;
create table t2 (a int, key(a), b int);
insert into t2 values (1,1),(2,2);
set @cnt= 1;
set @str="update t2 set b=1 where a not in (";
select count(*) from (
select @str:=concat(@str, @cnt:=@cnt+1, ",") 
from t1 A, t1 B, t1 C, t1 D) Z;
count(*)
10000
set @str:=concat(@str, "10000)");
select substr(@str, 1, 50);
substr(@str, 1, 50)
update t2 set b=1 where a not in (2,3,4,5,6,7,8,9,
prepare s from @str;
execute s;
deallocate prepare s;
set @str=NULL;
drop table t2;
drop table t1;
create table t1 (
some_id smallint(5) unsigned,
key (some_id)
);
insert into t1 values (1),(2);
select some_id from t1 where some_id not in(2,-1);
some_id
1
select some_id from t1 where some_id not in(-4,-1,-4);
some_id
1
2
select some_id from t1 where some_id not in(-4,-1,3423534,2342342);
some_id
1
2
select some_id from t1 where some_id not in('-1', '0');
some_id
1
2
drop table t1;
CREATE TABLE t1 (a int, b int, PRIMARY KEY (a));
INSERT INTO t1 VALUES (1,1),(2,1),(3,1),(4,1),(5,1),(6,1);
CREATE TABLE t2 (a int, b int, PRIMARY KEY (a));
INSERT INTO t2 VALUES (3,2),(4,2);
CREATE TABLE t3 (a int PRIMARY KEY);
INSERT INTO t3 VALUES (1),(2),(3),(4);
CREATE TABLE t4 (a int PRIMARY KEY);
INSERT INTO t4 VALUES (1),(2);
EXPLAIN SELECT STRAIGHT_JOIN * FROM t3 
JOIN t1 ON t3.a=t1.a 
JOIN t2 ON t3.a=t2.a
JOIN t4 WHERE t4.a IN (t1.b, t2.b);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t3	index	PRIMARY	PRIMARY	4	NULL	4	Using index
1	SIMPLE	t1	eq_ref	PRIMARY	PRIMARY	4	test.t3.a	1	
1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	4	test.t3.a	1	
1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	2	Range checked for each record (index map: 0x1)
SELECT STRAIGHT_JOIN * FROM t3 
JOIN t1 ON t3.a=t1.a 
JOIN t2 ON t3.a=t2.a
JOIN t4 WHERE t4.a IN (t1.b, t2.b);
a	a	b	a	b	a
3	3	1	3	2	1
3	3	1	3	2	2
4	4	1	4	2	1
4	4	1	4	2	2
EXPLAIN SELECT STRAIGHT_JOIN 
(SELECT SUM(t4.a) FROM t4 WHERE t4.a IN (t1.b, t2.b)) 
FROM t3, t1, t2
WHERE t3.a=t1.a AND t3.a=t2.a;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	t3	index	PRIMARY	PRIMARY	4	NULL	4	Using index
1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t3.a	1	
1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t3.a	1	
2	DEPENDENT SUBQUERY	t4	index	NULL	PRIMARY	4	NULL	2	Using where; Using index
SELECT STRAIGHT_JOIN 
(SELECT SUM(t4.a) FROM t4 WHERE t4.a IN (t1.b, t2.b)) 
FROM t3, t1, t2
WHERE t3.a=t1.a AND t3.a=t2.a;
(SELECT SUM(t4.a) FROM t4 WHERE t4.a IN (t1.b, t2.b))
3
3
DROP TABLE t1,t2,t3,t4;
CREATE TABLE t1(a BIGINT UNSIGNED);
INSERT INTO t1 VALUES (0xFFFFFFFFFFFFFFFF);
SELECT * FROM t1 WHERE a=-1 OR a=-2 ;
a
SELECT * FROM t1 WHERE a IN (-1, -2);
a
CREATE TABLE t2 (a BIGINT UNSIGNED);
insert into t2 values(13491727406643098568),
(0x7fffffefffffffff),
(0x7ffffffeffffffff),
(0x7fffffffefffffff),
(0x7ffffffffeffffff),
(0x7fffffffffefffff),
(0x7ffffffffffeffff),
(0x7fffffffffffefff),
(0x7ffffffffffffeff),
(0x7fffffffffffffef),
(0x7ffffffffffffffe),
(0x7fffffffffffffff),
(0x8000000000000000),
(0x8000000000000001),
(0x8000000000000002),
(0x8000000000000300),
(0x8000000000000400),
(0x8000000000000401),
(0x8000000000004001),
(0x8000000000040001),
(0x8000000000400001),
(0x8000000004000001),
(0x8000000040000001),
(0x8000000400000001),
(0x8000004000000001),
(0x8000040000000001);
SELECT HEX(a) FROM t2 WHERE a IN 
(CAST(0xBB3C3E98175D33C8 AS UNSIGNED),
42);
HEX(a)
BB3C3E98175D33C8
SELECT HEX(a) FROM t2 WHERE a IN
(CAST(0xBB3C3E98175D33C8 AS UNSIGNED),
CAST(0x7fffffffffffffff AS UNSIGNED),
CAST(0x8000000000000000 AS UNSIGNED),
CAST(0x8000000000000400 AS UNSIGNED),
CAST(0x8000000000000401 AS UNSIGNED),
42);
HEX(a)
BB3C3E98175D33C8
7FFFFFFFFFFFFFFF
8000000000000000
8000000000000400
8000000000000401
SELECT HEX(a) FROM t2 WHERE a IN 
(CAST(0x7fffffffffffffff AS UNSIGNED), 
CAST(0x8000000000000001 AS UNSIGNED));
HEX(a)
7FFFFFFFFFFFFFFF
8000000000000001
SELECT HEX(a) FROM t2 WHERE a IN 
(CAST(0x7ffffffffffffffe AS UNSIGNED), 
CAST(0x7fffffffffffffff AS UNSIGNED));
HEX(a)
7FFFFFFFFFFFFFFE
7FFFFFFFFFFFFFFF
SELECT HEX(a) FROM t2 WHERE a IN 
(0x7ffffffffffffffe, 
0x7fffffffffffffff,
'abc');
HEX(a)
7FFFFFFFFFFFFFFE
7FFFFFFFFFFFFFFF
CREATE TABLE t3 (a BIGINT UNSIGNED);
INSERT INTO t3 VALUES (9223372036854775551);
SELECT HEX(a) FROM t3 WHERE a IN (9223372036854775807, 42);
HEX(a)
CREATE TABLE t4 (a DATE);
INSERT INTO t4 VALUES ('1972-02-06'), ('1972-07-29');
SELECT * FROM t4 WHERE a IN ('1972-02-06','19772-07-29');
a
1972-02-06
Warnings:
Warning	1292	Incorrect date value: '19772-07-29' for column 'a' at row 1
DROP TABLE t1,t2,t3,t4;
CREATE TABLE t1 (id int not null);
INSERT INTO t1 VALUES (1),(2);
SELECT id FROM t1 WHERE id IN(4564, (SELECT IF(1=0,1,1/0)) );
id
DROP TABLE t1;
End of 5.0 tests