View source for IN Predicate

=IN PREDICATE=


==Class==
SQL Applications


==Purpose==
Special predicate


==Syntax==
<expression> [NOT] IN (<value list>)
<expression> [NOT] IN (<nested select>)


==See Also==
[[PREDICATES]], [[SQL INSERT|INSERT]], [[SQL SELECT|SELECT]], [[SQL UPDATE|UPDATE]]


==Description==
IN is a special predicate to evaluate whether the specified <expression> is equal to one of the values in the <value list> or <nested select>.  The <value list> contains a list of comma separated values.  The <nested select> is an SQL SELECT clause.

The optional NOT evaluates whether the specified <expression> is not equal to any of the values in the <value list> or <nested select>.

The data type must be the same for the <expression> and all the values in <value list> or returned by the <nested select>.


==Example==
<code lang="recital">
EXEC SQL
SELECT name, address, balance, cost*1.15
FROM accounts
WHERE paid_date < date() AND ord_value IN (100, 200, 300)
ORDER BY name, paid_date;

EXEC SQL
SELECT name, address, balance, rep_id
FROM accounts
WHERE rep_id IN (SELECT emp_id from employees where location = ’MA’)
ORDER BY name;
</code>


==Products==
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
[[Category:Documentation]]
[[Category:SQL]]
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