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https://github.com/chaisql/chai.git
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Asdine El Hrychy
40 lines
1.2 KiB
SQL
40 lines
1.2 KiB
SQL
-- setup:
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CREATE TABLE test (pk int primary key, a int, b int, c int, d int, UNIQUE (a, b, c));
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-- test: same value
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INSERT INTO test (pk, a, b, c, d) VALUES (1, 1, 1, 1, 1);
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INSERT INTO test (pk, a, b, c, d) VALUES (2, 1, 1, 1, 1);
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-- error:
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-- test: same value, same statement
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INSERT INTO test (pk, a, b, c, d) VALUES (1, 1, 1, 1, 1), (2, 1, 1, 1, 1);
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-- error:
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-- test: different values
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INSERT INTO test (pk, a, b, c, d) VALUES (1, 1, 1, 1, 1), (2, 1, 2, 1, 1);
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SELECT a, b, c, d FROM test;
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/* result:
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{a: 1, b: 1, c: 1, d: 1}
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{a: 1, b: 2, c: 1, d: 1}
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*/
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-- test: NULL
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INSERT INTO test (pk, d) VALUES (1, 1), (2, 2);
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INSERT INTO test (pk, c, d) VALUES (3, 3, 3);
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INSERT INTO test (pk, c, d) VALUES (4, 3, 3);
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INSERT INTO test (pk, b, c, d) VALUES (5, 4, 4, 4);
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INSERT INTO test (pk, b, c, d) VALUES (6, 4, 4, 4);
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INSERT INTO test (pk, a, b, c, d) VALUES (7, 5, null, 5, 5);
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INSERT INTO test (pk, a, c, d) VALUES (8, 5, 5, 5);
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SELECT a, b, c, d FROM test;
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/* result:
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{a: NULL, b: NULL, c: NULL, d: 1}
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{a: NULL, b: NULL, c: NULL, d: 2}
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{a: NULL, b: NULL, c: 3, d: 3}
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{a: NULL, b: NULL, c: 3, d: 3}
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{a: NULL, b: 4, c: 4, d: 4}
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{a: NULL, b: 4, c: 4, d: 4}
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{a: 5, b: NULL, c: 5, d: 5}
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{a: 5, b: NULL, c: 5, d: 5}
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*/
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