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5. Query data from emp table for each non-deptno 20 employees to display the ename and...

5. Query data from emp table for each non-deptno 20 employees to display the ename and calculate the number of months between today and the date the employee was hired. Label the column heading to Ename and Months_Worked. Order your results by the number of months employed. Round the number of months to a whole number.

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Answer #1

The query for getting Ename from table EMP the table of employee whose deptno should not be 20, and also arrange them in ascending order of the Months_Worked, Months_Worked = Today - Date of the employee was hired.

The single line query is in MySQL:

SELECT Ename, Months_Worked(TIMESTAMPDIFF(MONTH, Date_Of_Joining, NOW()) - CASE WHEN DAY(@Date_Of_Joining) > DAY(@now() THEN 1 ELSE 0 END)) FROM EMP WHERE Deptno <> 20 ORDER BY Months_Worked;

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