In below stored procedure I am trying to avoid NULL and "" value but not succeed.

Question

0.00/5 (No votes)

See more:

In below Stored procedure I am trying to avoid NULL and "" value but not succeed.
----------------------------------------

What I have tried:

SQL

CREATE PROCEDURE GET_DISTINCT_FIELD_VALUE 

  @FIELD_NAME nvarchar(50),
  @TABLE_NAME nvarchar(59)

AS

BEGIN

declare @q nvarchar(max)


 set @q = ' select distinct '+ @FIELD_NAME+' FIELD_VALUE from ' + @TABLE_NAME + ' where '+@FIELD_NAME +' <>'' order by '+@FIELD_NAME +' asc'


exec (@q)


END

Posted 13-Dec-17 2:56am

Member 13574079

Updated 13-Dec-17 16:53pm

RDBurmon

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

RDBurmon · Accepted Answer · 2017-12-13T03:16:00

Solution 1

see updated below

SQL

CREATE PROCEDURE GET_DISTINCT_FIELD_VALUE 
 
  @FIELD_NAME nvarchar(50),
  @TABLE_NAME nvarchar(59)
 
AS
 
BEGIN
 
declare @q nvarchar(max)
 

 set @q = ' select distinct '+ @FIELD_NAME+' FIELD_VALUE from ' + @TABLE_NAME + ' where len('+@FIELD_NAME +') <> 0 and ' + +@FIELD_NAME + ' Is not null order by '+@FIELD_NAME +' asc'
 

exec (@q)
 

END

Posted 13-Dec-17 3:16am

RDBurmon

Updated 13-Dec-17 3:52am

v2

Comments

Richard Deeming 13-Dec-17 9:53am

You had an extra single quote before the "0", which broke the query. I've removed it for you. :)

Member 13574079 14-Dec-17 0:05am

Thanks a lot

Santosh kumar Pithani · Accepted Answer · 2017-12-13T16:53:00

Solution 2

CREATE PROCEDURE GET_DISTINCT_FIELD_VALUE 
 (
 
  @FIELD_NAME nvarchar(50),
  @TABLE_NAME nvarchar(59)
 )
AS
 
BEGIN
 
declare @q nvarchar(max)
 

 set @q = ' select distinct '+ @FIELD_NAME+' FIELD_VALUE from ' + @TABLE_NAME + '
             where '+@FIELD_NAME +'<>'' ''  AND '+@FIELD_NAME +'IS NOT NULL 
             order by '+@FIELD_NAME;
 

EXEC(@q)
 

END

Posted 13-Dec-17 16:53pm

Santosh kumar Pithani

Comments

Member 13574079 14-Dec-17 0:06am

Working, Thanks a lot....:)