[mso] Re: Access & VBA
- From: "Jim Pettit" <jimpettit@xxxxxxxxx>
- To: <mso@xxxxxxxxxxxxx>
- Date: Thu, 24 Mar 2005 06:14:07 -0800
Glenda--
Access pass-through queries, by definiton, consist of SQL strings which are
'passed-through' Access and sent via ODBC directly to the back-end database
engine, which does all the work; Access doesn't do anything to the SQL
string before sending it. Therefore, you've got to use the syntax specified
by the underlying engine; in this case, remember that Oracle's 'LIKE'
operator uses the percent sign ('%') rather than the asterisk ('*') for
wildcard searches. IN your example, then, you need to check for: LIKE 'D%'.
(Almost completely OT: I believe that because of the way things are indexed,
Oracle queries using the LIKE operator force full-table scans, meaning that
Oracle has to look at every row in the table every time they're run. This
puts a lot of stress on the system. Just so you know.)
Hope this helps.
--Jim
-----Original Message-----
From: mso-bounce@xxxxxxxxxxxxx [mailto:mso-bounce@xxxxxxxxxxxxx] On Behalf
Of Glenda Wells
Sent: Thursday, March 24, 2005 5:47 AM
To: mso@xxxxxxxxxxxxx
Subject: [mso] Access & VBA
Hi All.
I'm attempting to extract records from an Oracle ODBC database using
Access In query I can use the criteria Like "D*" to get values
that begin with the letter D. I tried to set up a Pass-Thru Query to
get the same data and it's not working. In SQL design, I put Like
'D*' no records are returned.
Any advice appreciated. /g
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