What is the difference between groupby and having clause in sql

MAX - function returns the maximum value of the numeric column of specified criteria. SUM - function returns the total sum of a numeric column of specified criteria. COUNT - function returns the number of rows that match specified criteria. The distinct clause is used to filter unique records out of the duplicate records that satisfy the query criteria.

The Group by clause is often used to arrange the identical duplicate data into groups with the select statement. How they will go ahead? Is there any way where I can still filter out the unwanted records with lesser count? Thus, by using all these these clauses we can reduce and narrow down the row-set to do some quick analysis. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account.

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