Формат
<subquery> ::=
(SELECT [ALL | DISTINCT] <result specification>
<table expression>)
<result specification> ::=
<value expression>
| *
Системы обработки информации - язык баз данных SQL
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<subquery> ::=
(SELECT [ALL | DISTINCT] <result specification>
<table expression>)
<result specification> ::=
<value expression>
| *