1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
DROP TABLE IF EXISTS t1;
DROP TABLE IF EXISTS t2;
CREATE TABLE t1 (c1 INT, c2 CHAR(100));
INSERT INTO t1 VALUES (null,null);
INSERT INTO t1 VALUES (1,'');
INSERT INTO t1 VALUES (2,'abcde');
INSERT INTO t1 VALUES (100,'abcdefghij');
CREATE TABLE t2 (c1 INT, c2 VARCHAR(100));
INSERT INTO t2 VALUES (1,'abcde');
INSERT INTO t2 VALUES (2,'abcde');
SELECT c1 FROM t1 WHERE EXISTS (SELECT 1);
c1
NULL
1
2
100
SELECT c1 FROM t1 WHERE NOT EXISTS (SELECT 1);
c1
SELECT c1 FROM t1 WHERE EXISTS (SELECT * FROM t2 WHERE t1.c2 = t2.c2);
c1
2
SELECT c1 FROM t1 WHERE NOT EXISTS (SELECT * FROM t2 WHERE t1.c2 =
t2.c2);
c1
NULL
1
100
DROP TABLE t1;
DROP TABLE t2;
CREATE TABLE t1 (c1 INT, c2 VARCHAR(100));
INSERT INTO t1 VALUES (null,null);
INSERT INTO t1 VALUES (1,'');
INSERT INTO t1 VALUES (2,'abcde');
INSERT INTO t1 VALUES (100,'abcdefghij');
CREATE TABLE t2 (c1 INT, c2 VARCHAR(100));
INSERT INTO t2 VALUES (1,'abcde');
INSERT INTO t2 VALUES (2,'abcde');
SELECT c1 FROM t1 WHERE EXISTS (SELECT 1);
c1
NULL
1
2
100
SELECT c1 FROM t1 WHERE NOT EXISTS (SELECT 1);
c1
SELECT c1 FROM t1 WHERE EXISTS (SELECT * FROM t2 WHERE t1.c2 = t2.c2);
c1
2
SELECT c1 FROM t1 WHERE NOT EXISTS (SELECT * FROM t2 WHERE t1.c2 =
t2.c2);
c1
NULL
1
100
DROP TABLE t1;
DROP TABLE t2;
CREATE TABLE t1 (c1 INT, c2 BINARY(100));
INSERT INTO t1 VALUES (null,null);
INSERT INTO t1 VALUES (1,'');
INSERT INTO t1 VALUES (2,'abcde');
INSERT INTO t1 VALUES (100,'abcdefghij');
CREATE TABLE t2 (c1 INT, c2 VARCHAR(100));
INSERT INTO t2 VALUES (1,'abcde');
INSERT INTO t2 VALUES (2,'abcde');
SELECT c1 FROM t1 WHERE EXISTS (SELECT 1);
c1
NULL
1
2
100
SELECT c1 FROM t1 WHERE NOT EXISTS (SELECT 1);
c1
SELECT c1 FROM t1 WHERE EXISTS (SELECT * FROM t2 WHERE t1.c2 = t2.c2);
c1
SELECT c1 FROM t1 WHERE NOT EXISTS (SELECT * FROM t2 WHERE t1.c2 =
t2.c2);
c1
NULL
1
2
100
DROP TABLE t1;
DROP TABLE t2;
CREATE TABLE t1 (c1 INT, c2 VARBINARY(100));
INSERT INTO t1 VALUES (null,null);
INSERT INTO t1 VALUES (1,'');
INSERT INTO t1 VALUES (2,'abcde');
INSERT INTO t1 VALUES (100,'abcdefghij');
CREATE TABLE t2 (c1 INT, c2 VARCHAR(100));
INSERT INTO t2 VALUES (1,'abcde');
INSERT INTO t2 VALUES (2,'abcde');
SELECT c1 FROM t1 WHERE EXISTS (SELECT 1);
c1
NULL
1
2
100
SELECT c1 FROM t1 WHERE NOT EXISTS (SELECT 1);
c1
SELECT c1 FROM t1 WHERE EXISTS (SELECT * FROM t2 WHERE t1.c2 = t2.c2);
c1
2
SELECT c1 FROM t1 WHERE NOT EXISTS (SELECT * FROM t2 WHERE t1.c2 =
t2.c2);
c1
NULL
1
100
DROP TABLE t1;
DROP TABLE t2;
|
