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PostgreSQL
Subquery 7 codes
Home
PostgreSQL
Subquery
1 A multi-column sub-query using IN
2 A simple sub-query
3 A sub-query using IN
4 Comparing sub-query result sets
5 Selecting from a sub-query
6 To use a normal value operator on the results of a sub-query, only one field must be returned
7 Using case expressions with sub-queries