Question

On the query below I keep getting this error:

Cannot read the next data row for the dataset DataSetProject. (rsErrorReadingNextDataRow)

It appears to be the where clause, if I take it out it seems to work. So I added a cast to the where clause with no luck. Is there something special I need to do in the where clause to get this to work? Just an FYI this is in a report that is pulling an id from the url.

SELECT new_projects.new_projectsId AS ProjectId
     , new_projects.new_name AS ProjectName
     , new_projects.new_Description AS ProjectDescription

FROM
    new_projects
    LEFT OUTER JOIN new_projectsteps
        ON new_projects.new_projectsId = new_projectsteps.new_ProjectSteps2Id
    LEFT OUTER JOIN Task
        ON new_projectsteps.new_projectstepsId = Task.RegardingObjectId
WHERE
(new_projects.new_projectsId = cast(@id AS UNIQUEIDENTIFIER))

Thanks!

EDIT:

The id in SQL is a Unique Identifier, the value of @id is being pulled from the querystring(url). So it would look like: &id='BC02ABC0-A6A9-E111-BCAD-32B731EEDD84'

Sorry for the missing info.

Answer 1

I suspect the single quotes are coming through. So either don’t have them there by stripping them out before being passed to your parameter or use:

WHERE new_projects.new_projectsId = CONVERT(UNIQUEIDENTIFIER, REPLACE(@id, '''', ''));

If you try a direct comparison when the GUID contains other characters, you should get:

Msg 8169, Level 16, State 2, Line 1
Conversion failed when
converting from a character string to uniqueidentifier.

If this is not what’s happening, then don’t say “the id in SQL is a Unique Identifier” – show ALL of the code so we can try to reproduce the problem.