Bind variables by evaluating expressions.
A LetClause is part of FLWOR and FLWU expressions and
contains one or more variables that will be related to the expression that
follows. The let clause binds directly each variable to the result
of evaluating the expression. If there are for clauses, the
variable bindings are added to the tuples created in the for
clauses. Otherwise a single tuple with all variable bindings is created. The
return clause will be invoked once for each generated tuple that
is retained after passing the optional where clause.
See FLWORExpr for examples.
The following construct(s) refer to this construct:
This construct is also related to the following construct(s):
ForClause
|
WhereClause
|
