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