#49 Exists Operator in SQL | SQL Tutorial

Опубликовано: 06 Июнь 2021
на канале: Rapid Tutor
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#ExistsOperator #SQLTutorial
SQL Exists Operator used with subquery to test for existence of any record.
If Subquery returns one or more records then the operator will return true else false.
Ex.
select name from customers
where exists (select * from orders where customers.id = orders.order_ID);


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