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SQL WHERE

A WHERE clause in SQL is a data manipulation language statement.

WHERE clauses are not mandatory clauses of SQL DML statements. But it can be used to limit the number of rows affected by a SQL DML statement or returned by a query.

Actually. it filters the records. It returns only those queries which fulfill the specific conditions.

WHERE clause is used in SELECT, UPDATE, DELETE statement etc.

Let's see the syntax for sql where:

SELECT column1, column 2, ... column n
FROM    table_name
WHERE [conditions]

WHERE clause uses some conditional selection

=	equal
>	greater than
<	less than
>=	greater than or equal
<=	less than or equal
< >	not equal to

Next TopicSQL AND

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