mirror of
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42 lines
1.1 KiB
MySQL
42 lines
1.1 KiB
MySQL
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DROP TABLE IF EXISTS table1;
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DROP TABLE IF EXISTS table2;
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CREATE TABLE table1 (a UInt32, b UInt32) ENGINE = Memory;
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CREATE TABLE table2 (a UInt32, b UInt32) ENGINE = Memory;
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INSERT INTO table1 SELECT number, number FROM numbers(10);
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INSERT INTO table2 SELECT number * 2, number * 20 FROM numbers(6);
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select t1.a t1_a, t2.a
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from table1 as t1
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join table2 as t2 on table1.a = table2.a and t1.a = table2.a and t1_a = table2.a;
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select t1.a t1_a, t2.a
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from table1 as t1
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join table2 as t2 on table1.a = t2.a and t1.a = t2.a and t1_a = t2.a;
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select t1.a as t1_a, t2.a t2_a
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from table1 as t1
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join table2 as t2 on table1.a = t2_a and t1.a = t2_a and t1_a = t2_a;
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select t1.a t1_a, t2.a
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from table1 as t1
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join table2 as t2 on table1.a = table2.a and t1.a = t2.a and t1_a = t2.a;
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select t1.a t1_a, t2.a as t2_a
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from table1 as t1
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join table2 as t2 on table1.a = table2.a and t1.a = t2.a and t1_a = t2_a;
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select *
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from table1 as t1
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join table2 as t2 on t1_a = t2_a
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where (table1.a as t1_a) > 4 and (table2.a as t2_a) > 2;
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select t1.*, t2.*
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from table1 as t1
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join table2 as t2 on t1_a = t2_a
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where (t1.a as t1_a) > 2 and (t2.a as t2_a) > 4;
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DROP TABLE table1;
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DROP TABLE table2;
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