Question

Which clause is used to remove the duplicating rows of the table?

Answer 1

Answer:SQL delete duplicate Rows using Group By and having clause

In this method, we use the SQL GROUP BY clause to identify the duplicate rows. The Group By clause groups data as per the defined columns and we can use the COUNT function to check the occurrence

Answer 2

Which clause is used to remove the duplicating rows of the table?

Explanation:

• First, the CTE uses the ROW_NUMBER() function to find the duplicate rows specified by values in the first_name, last_name, and email columns.
• Then, the DELETE statement deletes all the duplicate rows but keeps only one occurrence of each duplicate group.
• The keyword distinct is used along with the select command to eliminate duplicate rows in the table.