ALL
(redirected from Doc.ALL)
<< || (string concatenator) | FB 2.5 Language Reference | ANY / SOME >>
<< || (string concatenator) | FB 2.1 Language Reference | ANY / SOME >>
<< || (string concatenator) | FB 2.0 Language Reference | ANY / SOME >>
ALL
Available in: DSQL, ESQL, PSQL
NULL
literals allowed
Changed in: 2.0
Description
The ALL
predicate now allows a NULL
as the test value. Notice that this brings no practical benefits. In particular, a NULL
test value will not be considered equal to NULL
s in the subquery result set. Even if the entire set is filled with NULL
s and the operator chosen is "=
", the predicate will not return true, but NULL
.
See also:
ALL
UNION
as subselect
Changed in: 2.0
Description
The subselect in an ALL
predicate may now also be a UNION
.
back to top of page
<< || (string concatenator) | FB 2.5 Language Reference | ANY / SOME >>
<< || (string concatenator) | FB 2.1 Language Reference | ANY / SOME >>
<< || (string concatenator) | FB 2.0 Language Reference | ANY / SOME >>