<P> A HAVING clause in SQL specifies that an SQL SELECT statement should only return rows where aggregate values meet the specified conditions . It was added to the SQL language because the WHERE keyword could not be used with aggregate functions . </P> <P> To return a list of department IDs whose total sales exceeded $1000 on the date of January 1, 2000, along with the sum of their sales on that date: </P>

Why do we use having clause in sql
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