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40 lines
914 B
Text
40 lines
914 B
Text
DROP TABLE IF EXISTS t1;
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CREATE TABLE t1 (a <INT_COLUMN> AUTO_INCREMENT, b <CHAR_COLUMN>, PRIMARY KEY (a,b)) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
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INSERT INTO t1 (b) VALUES ('a'),('b'),('b'),('c'),('a');
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SELECT LAST_INSERT_ID();
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LAST_INSERT_ID()
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1
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SELECT * FROM t1;
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a b
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1 a
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2 b
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3 b
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4 c
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5 a
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DROP TABLE t1;
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CREATE TABLE t1 (a <CHAR_COLUMN>, b <INT_COLUMN> AUTO_INCREMENT, PRIMARY KEY (a,b)) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
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INSERT INTO t1 (a) VALUES ('a'),('b'),('b'),('c'),('a');
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SELECT LAST_INSERT_ID();
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LAST_INSERT_ID()
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1
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SELECT * FROM t1;
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a b
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a 1
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a 2
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b 1
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b 2
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c 1
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DROP TABLE t1;
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CREATE TABLE t1 (a <CHAR_COLUMN>, b <INT_COLUMN> AUTO_INCREMENT, PRIMARY KEY (a,b), <CUSTOM_INDEX>(b)) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
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INSERT INTO t1 (a) VALUES ('a'),('b'),('b'),('c'),('a');
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SELECT LAST_INSERT_ID();
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LAST_INSERT_ID()
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1
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SELECT * FROM t1;
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a b
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a 1
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a 5
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b 2
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b 3
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c 4
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DROP TABLE t1;
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