2012-07-16 04:17:56 +02:00
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DROP TABLE IF EXISTS t1,t2;
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CREATE TABLE t1 (a <INT_COLUMN>, b <CHAR_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
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INSERT INTO t1 (a,b) VALUES (10000,'foobar'),(1,'a'),(2,'b'),(3,'c'),(4,'d'),(5,'e');
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INSERT INTO t1 (a,b) SELECT a, b FROM t1;
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DELETE FROM t1 WHERE b IN ('c');
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2013-02-02 23:53:57 +01:00
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SELECT a,b FROM t1;
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2012-07-16 04:17:56 +02:00
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a b
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1 a
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1 a
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10000 foobar
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10000 foobar
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2 b
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2 b
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4 d
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4 d
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5 e
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5 e
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DELETE FROM t1 WHERE a < 0 OR b = 'a';
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2013-02-02 23:53:57 +01:00
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SELECT a,b FROM t1;
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2012-07-16 04:17:56 +02:00
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a b
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10000 foobar
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10000 foobar
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2 b
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2 b
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4 d
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4 d
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5 e
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5 e
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DELETE FROM t1 WHERE a <= 4 ORDER BY b DESC LIMIT 1;
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2013-02-02 23:53:57 +01:00
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SELECT a,b FROM t1;
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2012-07-16 04:17:56 +02:00
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a b
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10000 foobar
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10000 foobar
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2 b
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2 b
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4 d
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5 e
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5 e
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CREATE TABLE t2 (c <CHAR_COLUMN>, d <INT_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
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INSERT INTO t2 (c,d) SELECT b, a FROM t1;
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2013-02-02 23:53:57 +01:00
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SELECT c,d FROM t2;
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2012-07-16 04:17:56 +02:00
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c d
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b 2
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b 2
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d 4
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e 5
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e 5
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foobar 10000
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foobar 10000
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DELETE t2.* FROM t1, t2 WHERE c < b AND a + d != 1;
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2013-02-02 23:53:57 +01:00
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SELECT a,b FROM t1;
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2012-07-16 04:17:56 +02:00
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a b
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10000 foobar
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10000 foobar
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2 b
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2 b
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4 d
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5 e
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5 e
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2013-02-02 23:53:57 +01:00
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SELECT c,d FROM t2;
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2012-07-16 04:17:56 +02:00
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c d
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foobar 10000
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foobar 10000
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DELETE FROM t2, t1.* USING t2, t1 WHERE c = 'foobar' and b = c;
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2013-02-02 23:53:57 +01:00
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SELECT a,b FROM t1;
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2012-07-16 04:17:56 +02:00
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a b
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2 b
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2 b
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4 d
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5 e
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5 e
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2013-02-02 23:53:57 +01:00
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SELECT c,d FROM t2;
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2012-07-16 04:17:56 +02:00
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c d
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DELETE FROM t1;
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2013-02-02 23:53:57 +01:00
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SELECT a,b FROM t1;
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2012-07-16 04:17:56 +02:00
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a b
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DROP TABLE t1, t2;
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