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SQL problems with ADO

Posted on 2002-03-14
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Last Modified: 2013-11-23
Hi !

I tried running some SQL queries that don't return any result when using them via SQL on a Sybase database:

Example:
if exists(select * from MyTable where Value ='SomeValue') select 'The value exists'

I verified that the query works, but when running it with ADO through a recordset or command object I get no results.

Is this an ADO limitation ?
Is there another way to do it ?
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Comment
Question by:logindani
8 Comments
 
LVL 3

Expert Comment

by:Bahnass
ID: 6863956
I think No problem in SQL
Can U give Ur Code of ADO?
0
 

Author Comment

by:logindani
ID: 6863989
   Dim cn As New ADODB.Connection
    Dim rs As New ADODB.Recordset
    Dim sSQL  As String
   
    cn.Open "DSN=DBS1;UID=user;PWD=passw"
       
    sSQL = "if exists(select * from MyTable where  paramname='value') select 'String found' As Result"

    rs.Open sSQL, cn
0
 

Author Comment

by:logindani
ID: 6864106
   Dim cn As New ADODB.Connection
    Dim rs As New ADODB.Recordset
    Dim sSQL  As String
   
    cn.Open "DSN=DBS1;UID=user;PWD=passw"
       
    sSQL = "if exists(select * from MyTable where  paramname='value') select 'String found' As Result"

    rs.Open sSQL, cn
0
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LVL 3

Expert Comment

by:Bahnass
ID: 6864915
what about
rs.open "select * from MyTable where  paramname='value'"

if rs.recordcount >0 then
     ' Do Something 'String found'
end if
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LVL 4

Accepted Solution

by:
RichW earned 50 total points
ID: 6902760
I have come across problems running ADO in Sybase.  For one thing I know that Sybase doesn't allow ADO to do a IfExists on a NULL field in a stored procedure.  It disregards the NULL field completely.

The problem goes away when you use DAO, probably because the Sybase drivers are more based on DAO.

Try running the query using DAO and see if the problem goes away.

I had the same problem, and resolved it by changing to DAO.


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Expert Comment

by:Moondancer
ID: 7018989
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LVL 49

Expert Comment

by:DanRollins
ID: 7618279
logindani, an EE Moderator will handle this for you.
Moderator, my recommended disposition is:

    Accept RichW's comment(s) as an answer.

DanRollins -- EE database cleanup volunteer
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Expert Comment

by:kodiakbear
ID: 7665711
Moving to the paq

kb
Experts Exchange Moderator
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