modify query by adding UPDATE statement

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The query below works and gives me the most TopProfitted salesperson.

How can I modify the query below to include UPDATE statement to increase the salary of 12% ?

---Find the most TopProfited salesperson and increase the salary of that --salesperson 12%

SQL

SELECT *
  FROM (SELECT *
          FROM (SELECT *
                  FROM (SELECT s.empid employeeid,
                               s.ename employeename,
                               SUM(i.price * oi.qty) - s.salary Topprofit
                               FROM salespersons s
                               LEFT JOIN orders o ON s.empid = o.empid
                               LEFT JOIN orderitems oi ON o.orderid = oi.orderid
                               LEFT JOIN inventory i ON oi.partid = i.partid
                        GROUP BY s.empid, s.ename, s.salary)
                ORDER BY Topprofit DESC)
         WHERE ROWNUM = 2
        ORDER BY Topprofit ASC)
 WHERE ROWNUM = 1 and Topprofit is not null;

Posted 8-Feb-13 5:15am

7prince

Updated 9-Feb-13 1:10am

André Kraak

v3

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Richard C Bishop 8-Feb-13 11:22am

I would just use your salesperson query as the where clause for your update statement.

1 solution

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Mike Meinz · Accepted Answer · 2013-02-08T05:28:00

Solution 1

Something like this.
Warning: My syntax may not be entirely correct

Update salespersons set salary = salary * 1.12 where salespersons.empid =
(SELECT employeeid
  FROM (SELECT *
          FROM (SELECT *
                  FROM (SELECT s.empid employeeid,
                               s.ename employeename,
                               SUM(i.price * oi.qty) - s.salary Topprofit
                               FROM salespersons s
                               LEFT JOIN orders o ON s.empid = o.empid
                               LEFT JOIN orderitems oi ON o.orderid = oi.orderid
                               LEFT JOIN inventory i ON oi.partid = i.partid
                        GROUP BY s.empid, s.ename, s.salary)
                ORDER BY Topprofit DESC)
         WHERE ROWNUM = 2
        ORDER BY Topprofit ASC)
 WHERE ROWNUM = 1 and Topprofit is not null);

Posted 8-Feb-13 5:28am

Mike Meinz

Updated 9-Feb-13 1:06am

v4

Comments

7prince 8-Feb-13 15:17pm

I ran the query and for some reason it say 0 row updated. Not sure why?

Update salespersons set salespersons.salary = salespersons.salary * 1.12 where salespersons.empid =
(SELECT salespersons.empid
FROM (SELECT *
FROM (SELECT *
FROM (SELECT s.empid employeeid,
s.ename employeename,
SUM(i.price * oi.qty) - s.salary Topprofit
FROM salespersons s
LEFT JOIN orders o ON s.empid = o.empid
LEFT JOIN orderitems oi ON o.orderid = oi.orderid
LEFT JOIN inventory i ON oi.partid = i.partid
GROUP BY s.empid, s.ename, s.salary)
ORDER BY Topprofit DESC)
WHERE ROWNUM = 2
ORDER BY Topprofit ASC)
WHERE ROWNUM = 1 and Topprofit is not null);

Mike Meinz 8-Feb-13 15:49pm

Two things to try:

1. Your version is different than my version. In your version, the first SELECT is SELECT salespersons.empid. In my version, if is SELECT s.empid. I am not sure if that makes a difference or not.

2. I wonder if that first SELECT should be SELECT employeeid instead of SELECT s.empid. I notice now, that you rename the empid column in the innermost SELECT.

7prince 8-Feb-13 23:13pm

Here is the latest revision: But, I am still getting 0 rows updated message.

Update salespersons set salespersons.salary = salespersons.salary * 1.12 where salespersons.empid =
(SELECT salespersons.empid
FROM (SELECT *
FROM (SELECT *
FROM (SELECT s.empid employeeid,
s.ename employeename,
SUM(i.price * oi.qty) - s.salary Topprofit
FROM salespersons s
LEFT JOIN orders o ON s.empid = o.empid
LEFT JOIN orderitems oi ON o.orderid = oi.orderid
LEFT JOIN inventory i ON oi.partid = i.partid
GROUP BY s.empid, s.ename, s.salary)
ORDER BY Topprofit DESC)
WHERE ROWNUM = 2
ORDER BY Topprofit ASC)
WHERE ROWNUM = 1 and Topprofit is not null);

7prince 8-Feb-13 23:13pm

Here is the latest revision: But, I am still getting 0 rows updated message.

Update salespersons set salespersons.salary = salespersons.salary * 1.12 where salespersons.empid =
(SELECT salespersons.empid
FROM (SELECT *
FROM (SELECT *
FROM (SELECT s.empid employeeid,
s.ename employeename,
SUM(i.price * oi.qty) - s.salary Topprofit
FROM salespersons s
LEFT JOIN orders o ON s.empid = o.empid
LEFT JOIN orderitems oi ON o.orderid = oi.orderid
LEFT JOIN inventory i ON oi.partid = i.partid
GROUP BY s.empid, s.ename, s.salary)
ORDER BY Topprofit DESC)
WHERE ROWNUM = 2
ORDER BY Topprofit ASC)
WHERE ROWNUM = 1 and Topprofit is not null);

Mike Meinz 9-Feb-13 7:09am

I am convinced that the first select should be SELECT employeeid. Neither of your attempts above included that. I have updated Solution 1.

If that still doesn't work, take the bundle of SELECT statements within the outermost parenthesis and run them in a query window within SQL Server Management Studio to be sure that EmployeeID is the result and that it is the correct value.