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
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DROP TABLE IF EXISTS t1,t2;
CREATE TABLE t1 (a <INT_COLUMN>, b <CHAR_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
INSERT INTO t1 (a,b) VALUES (10000,'foobar'),(1,'a'),(2,'b'),(3,'c'),(4,'d'),(5,'e');
INSERT INTO t1 (a,b) SELECT a, b FROM t1;
DELETE FROM t1 WHERE b IN ('c');
SELECT a,b FROM t1;
a b
1 a
1 a
10000 foobar
10000 foobar
2 b
2 b
4 d
4 d
5 e
5 e
DELETE FROM t1 WHERE a < 0 OR b = 'a';
SELECT a,b FROM t1;
a b
10000 foobar
10000 foobar
2 b
2 b
4 d
4 d
5 e
5 e
DELETE FROM t1 WHERE a <= 4 ORDER BY b DESC LIMIT 1;
SELECT a,b FROM t1;
a b
10000 foobar
10000 foobar
2 b
2 b
4 d
5 e
5 e
CREATE TABLE t2 (c <CHAR_COLUMN>, d <INT_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
INSERT INTO t2 (c,d) SELECT b, a FROM t1;
SELECT c,d FROM t2;
c d
b 2
b 2
d 4
e 5
e 5
foobar 10000
foobar 10000
DELETE t2.* FROM t1, t2 WHERE c < b AND a + d != 1;
SELECT a,b FROM t1;
a b
10000 foobar
10000 foobar
2 b
2 b
4 d
5 e
5 e
SELECT c,d FROM t2;
c d
foobar 10000
foobar 10000
DELETE FROM t2, t1.* USING t2, t1 WHERE c = 'foobar' and b = c;
SELECT a,b FROM t1;
a b
2 b
2 b
4 d
5 e
5 e
SELECT c,d FROM t2;
c d
DELETE FROM t1;
SELECT a,b FROM t1;
a b
DROP TABLE t1, t2;
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