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:
WHERE clause uses some conditional selection