16 lines
475 B
Plaintext
16 lines
475 B
Plaintext
WITH t AS (SELECT a FROM t1 WHERE b >= 'c') SELECT * FROM t2,t WHERE t2.c=t.a;
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SELECT t1.a,t1.b FROM t1,t2
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WHERE t1.a>t2.c AND
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t2.c in (WITH t as (SELECT * FROM t1 WHERE t1.a<5)
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SELECT t2.c FROM t2,t WHERE t2.c=t.a);
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WITH engineers AS (
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SELECT * FROM employees WHERE dept IN ('Development','Support')
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)
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SELECT * FROM engineers E1
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WHERE NOT EXISTS (SELECT 1
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FROM engineers E2
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WHERE E2.country=E1.country
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AND E2.name <> E1.name);
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