Question

Select and IF EXISTS

Asked by: zadoc

Is there anything wrong with this query? I keep getting a error saying

Macromedia][SQLServer JDBC Driver][SQLServer]Incorrect syntax near the keyword 'IF'.  
  

INSERT INTO barriosReport_Items(TechCode,Supervisor,DiscOrdStat,MAC,JobStat,DueDtTm,JobID,JobType,WireCenter,created_datetime,barriosReport_Transaction_id) 
SELECT '',
    '',
    '13',
    '',
     IF EXISTS ( SELECT jobstat_id FROM barriosReport_JobStat WHERE (jobstat = 'CAN') ) 
        SELECT jobstat_id FROM barriosReport_JobStat WHERE (jobstat = 'CAN')
     ELSE 
         INSERT INTO barriosReport_JobStat (jobstat)
         VALUES ('CAN') SELECT @@Identity as jobstat_id ENDIF ,
    {ts '2008-09-12 20:00:00'},
    '16454687',
    'IRJ1IX',
    '949725',
    {ts '2008-09-12 13:07:11'},
    78

                                  
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Asked On
2008-09-12 at 13:15:08ID23727699
Tags

MSSQL Select IF EXISTS

Topics

Cold Fusion Markup Language

,

MS SQL Server

,

ColdFusion Application Server

Participating Experts
2
Points
500
Comments
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Answers

 

by: SidFishesPosted on 2008-09-12 at 13:33:12ID: 22463624

don't think t-sql uses ENDIF

...

 IF EXISTS ( SELECT jobstat_id FROM barriosReport_JobStat WHERE (jobstat = 'CAN') )
        SELECT jobstat_id FROM barriosReport_JobStat WHERE (jobstat = 'CAN')
     ELSE
         INSERT INTO barriosReport_JobStat (jobstat)
         VALUES ('CAN') SELECT @@Identity as jobstat_id,
    {ts '2008-09-12 20:00:00'},
....

 

by: jogosPosted on 2008-09-12 at 13:37:49ID: 22463659

You insert values into a table using a list of values

SELECT '',    '',    '13',    '',
 
but then something strange arives, the next value is not a value but a test
and the then-part returns a value (jbstat_id)  and the ELSE-part returns  nothing but is an insertstatement

     IF EXISTS ( SELECT jobstat_id FROM barriosReport_JobStat WHERE (jobstat = 'CAN') )
        SELECT jobstat_id FROM barriosReport_JobStat WHERE (jobstat = 'CAN')
     ELSE
         INSERT INTO barriosReport_JobStat (jobstat)
         VALUES ('CAN') SELECT @@Identity as jobstat_id
ENDIF

 

by: jogosPosted on 2008-09-12 at 13:50:00ID: 22463770

Ok I missed the @@Identity. because of the 2 commands on one line
But still mix values with program-block.
=> 2 statements


INSERT INTO barriosReport_JobStat (jobstat)
select 'CAN' where not exists (SELECT jobstat_id FROM barriosReport_JobStat WHERE jobstat = 'CAN')
-- jobstat now always exists
INSERT INTO barriosReport_Items(TechCode,Supervisor,DiscOrdStat,MAC,JobStat,DueDtTm,JobID,JobType,WireCenter,created_datetime,barriosReport_Transaction_id) 
SELECT '',
    '',
    '13',
    '',
      jobstat_id ,
    {ts '2008-09-12 20:00:00'},
    '16454687',
    'IRJ1IX',
    '949725',
    {ts '2008-09-12 13:07:11'},
    78
FROM barriosReport_JobStat 
WHERE (jobstat = 'CAN')
                                              
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by: zadocPosted on 2008-09-12 at 15:20:43ID: 22464380

Sid, I've removed the ENDIF and no change. same error

jogos, I am working on your example, but before I try.. Is this another way to write if exists? I am no SQL pro.. but Does it insert a row every time it is ran?

INSERT INTO barriosReport_JobStat (jobstat)
select 'CAN' where not exists (SELECT jobstat_id FROM barriosReport_JobStat WHERE jobstat = 'CAN')

 

by: jogosPosted on 2008-09-12 at 16:21:32ID: 22464714

< Does it insert a row every time it is ran? >
No it doesn't because there is a where-clause that is only thrue when 'not exists' .....  

You can also choose to test before insert
IF NOT EXISTS ( SELECT jobstat_id FROM barriosReport_JobStat WHERE (jobstat = 'CAN') )
         INSERT INTO barriosReport_JobStat (jobstat)
         VALUES ('CAN')

or better (so you can get more than 1 line in your test
IF ...
 BEGIN
 ....
 END
ELSE
 BEGIN
 ...
 ....
 END

 

by: zadocPosted on 2008-09-12 at 18:12:42ID: 22465136

Thanks, I will have to look into this more on Monday when I get back to work.

 

by: zadocPosted on 2008-09-26 at 16:55:42ID: 31496077

Thanks!

20120131-EE-VQP-002

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