12.6.85. boolean primary ::=
- (<common value expression>(<between predicate> | <match predicate> | <like regex predicate> | <in predicate> | <is null predicate> | <quantified comparison predicate> | <comparison predicate> | <is distinct>)?)
- <exists predicate>
- <xml query>
ブール値の述語または単純な式。
例:
col LIKE 'a%'
col LIKE 'a%'