Question

TSQL sub select help

Asked by: juliandormon

I have a table of media with the PKID called MediaID.
I have a table of OrdersDetails with a Foreign key of MediaID and PKID of EventProjectItemID

When looping through the media table I want to return ALL records in it, but I want to see if any of the MediaID's are also found in the OrderDetails table.

The MediaID may be found multiple times in the OrderDetails table - but I only care if it is in there or not (scalar or bit info is what I need).

I am currently using a left inner join, which tells me what I need, but it obviously returns more records than needed if the MediaID appears more than once in the Order Details table.

I thought about doing a scalar sub select within the main select, but I cannot figure out this would work.

Can you help?

Select BBB_EventProjectMedia.*, BBB_EventProjectOrderDetails.EventProjectItemID From BBB_EventProjectMedia 
Left Join BBB_EventProjectOrderDetails On BBB_EventProjectMedia.EventMediaID = BBB_EventProjectOrderDetails.EventMediaID AND BBB_EventProjectOrderDetails.EventProjectOrderID = @EventProjectOrderID
Where (BBB_EventProjectMedia.EventMediaID = @EventMediaID or @EventMediaID is Null) AND (BBB_EventProjectMedia.EventGalleryID = @EventGalleryID or @EventGalleryID is Null) AND (BBB_EventProjectMedia.OrigMediaName = @OrigMediaName or @OrigMediaName is Null) AND BBB_EventProjectMedia.EventProjectID = @EventProjectID
Order By BBB_EventProjectMedia.MediaOrder ASC, BBB_EventProjectMedia.EventMediaID ASC

                                  
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Asked On
2009-01-14 at 12:52:39ID24052460
Tags

TSQL SQL Windows

Topic

MS SQL Server

Participating Experts
1
Points
500
Comments
4

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Answers

 

by: chapmandewPosted on 2009-01-14 at 12:56:01ID: 23377392

Select *, existsindetail = case when exists(select 1 from BBB_EventProjectOrderDetails d on m.EventMediaID = d.EventMediaID ANd EventMediaID AND d.EventProjectOrderID = @EventProjectOrderID
) then 1 else 0 end
From BBB_EventProjectMedia m

 

by: juliandormonPosted on 2009-01-14 at 13:10:09ID: 23377544

Thanks a lot but getting an error... can you help further?

Error is:

Msg 156, Level 15, State 1, Procedure sp_bbb_select_event_project_media_V2, Line 21
Incorrect syntax near the keyword 'on'.

Select *, existsindetail = case when exists(select 1 from BBB_EventProjectOrderDetails d on m.EventMediaID = d.EventMediaID ANd EventMediaID AND d.EventProjectOrderID = @EventProjectOrderID
) then 1 else 0 end
From BBB_EventProjectMedia m
Where (BBB_EventProjectMedia.EventMediaID = @EventMediaID or @EventMediaID is Null) AND (BBB_EventProjectMedia.EventGalleryID = @EventGalleryID or @EventGalleryID is Null) AND (BBB_EventProjectMedia.OrigMediaName = @OrigMediaName or @OrigMediaName is Null) AND BBB_EventProjectMedia.EventProjectID = @EventProjectID
Order By BBB_EventProjectMedia.MediaOrder ASC, BBB_EventProjectMedia.EventMediaID ASC

                                              
1:
2:
3:
4:
5:

Select allOpen in new window

 

by: chapmandewPosted on 2009-01-14 at 13:13:09ID: 23377585

sure...try this:

SELECT *, existsindetail = CASE WHEN EXISTS(
SELECT 1 FROM BBB_EventProjectOrderDetails d
WHERE  m.EventMediaID = d.EventMediaID AND d.EventProjectOrderID = @EventProjectOrderID
) THEN 1 ELSE 0 END
FROM BBB_EventProjectMedia m
WHERE (BBB_EventProjectMedia.EventMediaID = @EventMediaID OR @EventMediaID IS NULL) AND (BBB_EventProjectMedia.EventGalleryID = @EventGalleryID OR @EventGalleryID IS NULL) AND (BBB_EventProjectMedia.OrigMediaName = @OrigMediaName OR @OrigMediaName IS NULL) AND BBB_EventProjectMedia.EventProjectID = @EventProjectID
ORDER BY BBB_EventProjectMedia.MediaOrder ASC, BBB_EventProjectMedia.EventMediaID ASC

 

by: juliandormonPosted on 2009-01-14 at 13:22:31ID: 31534719

Thanks so much you're so quick!

20120131-EE-VQP-002

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