Solved

SQL nested SELECT statement for column

Posted on 2010-11-23
3
329 Views
Last Modified: 2012-05-10
I am trying to select a column inside of a SELECT statement that pulls vlaues out where a different column equals a value.  This is an example of what I want to do but it is not correct:

SELECT column1, column2, (SELECT column 3 WHERE column6 <= 12 AND column10 >= 1 AS YearlySum), column 3, column4, column 5 FROM table1

As you can see I would like to select all of the columns from the table, but also select some of the columns based on certain conditions.  Any hlep is greatly appreciated.
0
Comment
Question by:zintech
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 34196828
you cannot optionally select a column.
you could return a NULL value optionally ...
SELECT column1, column2
, CASE WHEN column6 <= 12 AND column10 >= 1 THEN column3 ELSE NULL END AS YearlySum
, column 3, column4, column 5 
FROM table1

Open in new window

0
 
LVL 3

Expert Comment

by:ppango
ID: 34196846
To accomplish this you need to use the CASE clause

But my first question will be this one, what if the condition you specified is not met? lets say Column 6 is grater then 12 and column 10 less than 1?

Thanks

0
 
LVL 5

Expert Comment

by:logideepak
ID: 34196908
you can use a case statement

SELECT column1, column2, case when  column6 <= 12 AND column10 >= 1 then column3 else null end  AS YearlySum, column 3, column4, column 5 FROM table1
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I'm trying, I really am. But I've seen so many wrong approaches involving date(time) boundaries I despair about my inability to explain it. I've seen quite a few recently that define a non-leap year as 364 days, or 366 days and the list goes on. …
International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.
Familiarize people with the process of retrieving data from SQL Server using an Access pass-thru query. Microsoft Access is a very powerful client/server development tool. One of the ways that you can retrieve data from a SQL Server is by using a pa…
Via a live example, show how to extract information from SQL Server on Database, Connection and Server properties

705 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question