Solved

Dynamic SQL statement

Posted on 2011-03-21
9
230 Views
Last Modified: 2012-05-11
How can I build a dynamic SQL statement without inserting the SQL into a variable.

For example the store procedure has a variable called @Sex.

This is my main SQL statement:

Select * FROM MYTABLE
WHERE SSN = @SSN AND AGE=@AGE AND

I would build the rest of the SQL statement using the variable @SEX

@SEX (if male)
TVSHOWS=@TVSHOWS AND RACING=@RACING AND NASCAR=@NASCAR

@SEX (if Female)
SOAPS=@SOAPS AND COOKING=@COOKING AND CHILDREN=@CHILDREN


0
Comment
Question by:Internet_Engineer
9 Comments
 
LVL 5

Expert Comment

by:KGNickl
ID: 35182854
Make separate queries in a stored procedure. Then just pass in the sex of the person when calling the stored procedure and it will run the correct query for you.

IF @SEX = "MALE"
TVSHOWS=@TVSHOWS AND RACING=@RACING AND NASCAR=@NASCAR

IF @SEX = "MALE"
SOAPS=@SOAPS AND COOKING=@COOKING AND CHILDREN=@CHILDREN

0
 
LVL 51

Assisted Solution

by:HainKurt
HainKurt earned 250 total points
ID: 35183174
try this syntax:

Select * FROM MYTABLE
WHERE SSN = @SSN AND AGE=@AGE AND
and (
case  
when @sex='M' and TVSHOWS=@TVSHOWS AND RACING=@RACING AND NASCAR=@NASCAR then 1
when @sex='F' and SOAPS=@SOAPS AND COOKING=@COOKING AND CHILDREN=@CHILDREN then 1
else 0
end
) = 1




0
 
LVL 40

Accepted Solution

by:
Sharath earned 250 total points
ID: 35183296
Do you really need a dynamic sql for this? You can try like this.
SELECT * 
  FROM MYTABLE 
 WHERE SSN = @SSN 
       AND AGE = @AGE 
       AND ((@SEX = 'male' 
             AND TVSHOWS = @TVSHOWS 
             AND RACING = @RACING 
             AND NASCAR = @NASCAR) 
             OR (@SEX = 'Female' 
                 AND SOAPS = @SOAPS 
                 AND COOKING = @COOKING 
                 AND CHILDREN = @CHILDREN))

Open in new window

0
Zoho SalesIQ

Hassle-free live chat software re-imagined for business growth. 2 users, always free.

 

Author Comment

by:Internet_Engineer
ID: 35327419
Here is the solution:

(@SEX = 'male' AND (TVSHOWS=@TVSHOWS AND RACING=@RACING AND NASCAR=@NASCAR))

(@SEX = 'female' AND (TVSHOWS=@TVSHOWS AND RACING=@RACING AND NASCAR=@NASCAR))
0
 
LVL 40

Expert Comment

by:Sharath
ID: 35329030
Solution was provided. Not sure why the asker wants to close this question without accepting any expert's post. In fact the solution posted by asker is wrong when checked with what he/she asked.
0
 
LVL 40

Expert Comment

by:Sharath
ID: 35330746
My recommendation is #3 and I suggest the posts http:#a35183296 and http:#a35183174 as answers.
0
 
LVL 1

Expert Comment

by:modus_operandi
ID: 35390703
Starting auto-close process to implement the recommendations of the participating Expert(s).
 
modus_operandi
EE Admin
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

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.
Ever needed a SQL 2008 Database replicated/mirrored/log shipped on another server but you can't take the downtime inflicted by initial snapshot or disconnect while T-logs are restored or mirror applied? You can use SQL Server Initialize from Backup…
Via a live example, show how to extract information from SQL Server on Database, Connection and Server properties
Via a live example, show how to backup a database, simulate a failure backup the tail of the database transaction log and perform the restore.

911 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

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now