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FIX: Trailing Zeros Truncated with ADO OLEDB Provider for ODBC

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This article was previously published under Q237492

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When using the OLEDB provider for ODBC, numeric data types returned from the database are returned with the trailing zeros to the left of the decimal place truncated.

For example:

100 would be returned as 1.

2200 would be returned as 22.

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This data truncation is a result of a problem with the translation of the ODBC data type to its equivalent OLEDB data type. This problem occurs when the ODBC driver being used returns a negative value for the scale element of the SQL_C_NUMERIC structure.

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This has been confirmed to be a bug in the MDAC components. There is a fix for this problem which is discussed in the STATUS section of this article. In addition to this fix, there are several other workarounds to this problem:
  • Modify the query that brings back the numeric type so that the numeric type is converted to strings before returning. For example, "SELECT convert(char(10),field1) FROM TABLENAME."
  • Use the ADO client cursor library instead. This can be done by specifying Connection.CursorLocation = adUseClient.
  • Use the native OLEDB provider for the database, if one is available.

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This problem has been fixed in Microsoft ActiveX Data Objects versions 2.5 and later. The fix for this issue is available in MDAC 2.5.

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For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
195470� PRB: MDAC 2.0 ODBC Requirements for Numeric Fields
ODBC 3.0 Programmer's Reference

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Keywords: kbhotfixserver, kbqfe, kbbug, kbdatabase, kbfix, kbmdac210sp2fix, kbmdac250fix, kbmdacnosweep, kboledb210fix, kb3rdparty, KB237492

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Article Info
Article ID : 237492
Revision : 4
Created on : 9/22/2005
Published on : 9/22/2005
Exists online : False
Views : 338