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Database Systems: Design, Implemen...

13th Edition
Carlos Coronel + 1 other
ISBN: 9781337627900

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Chapter
Section
BuyFindarrow_forward

Database Systems: Design, Implemen...

13th Edition
Carlos Coronel + 1 other
ISBN: 9781337627900
Textbook Problem

Write the SQL code to validate the ASSIGN_CHARGE values in the ASSIGNMENT table. Your query should retrieve the assignment number, employee number, project number, the stored assignment charge (ASSIGN_CHARGE), and the calculated assignment charge (calculated by multiplying ASSIGN_CHG_HR by ASSIGN_HOURS). Sort the results by the assignment number.

Program Plan Intro

ORDER BY Clause:

SQL contains “ORDER BY” clause in order to sort rows. The values get sorted in ascending as well as descending order. The keyword used to sort values in ascending order is “ASC” and for descending order is “DESC”. By default, it sorts values by ascending order.

Syntax:

SELECT column_Name1, column_Name2 FROM table_Name ORDER BY column_Name2;

Program Explanation

SQL code:

The SQL code to get the assignment number, employee number, project number, assignment charge; calculate assignment charge from the “ASSIGNMENT” table that is sorted by assignment number is given below:

SELECT ASSIGN_NUM, EMP_NUM, PROJ_NUM, ASSIGN_CHARGE, ASSIGN_CHG_HR * ASSIGN_HOURS AS CALC_ASSIGN_CHARGE FROM ASSIGNMENT...

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