FIX: An application that uses Managed Provider for DB2 may experience an exception when the application tries to perform a parameterized query in Host Integration Server 2004 (892398)



The information in this article applies to:

  • Microsoft Host Integration Server 2004

SYMPTOMS

An application that uses Managed Provider for DB2 may experience an exception. The exception may occur when the application tries to perform a parameterized query by using the INSERT method to insert Char data types in a DB2 table. You may receive the following error message:
The parameter data type of Char is invalid
This problem occurs in Microsoft Host Integration Server 2004.

CAUSE

Managed Provider for DB2 does not support Char data types in a parameterized query.

RESOLUTION

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Host Integration Server 2004 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
   Date         Time   Version      Size    File name
   --------------------------------------------------------------
   14-Jan-2005  19:57  6.0.1928.0  486,912  Db2oledb.dll     
   14-Jan-2005  20:02               24,516  Db2oledb.h
   14-Jan-2005  19:57  6.0.1928.0   44,032  Ddmstr.dll       
   18-Jan-2005  01:02  6.0.1928.0  114,688  Microsoft.hostintegration.msdb2client.dll  
   14-Jan-2005  19:57  6.0.1928.0   71,680  Mseidb2c.dll     
   14-Jan-2005  19:57  6.0.1928.0  435,200  Mseidb2d.dll     
   14-Jan-2005  19:57  6.0.1928.0   20,992  Mseidpm.dll      
   14-Jan-2005  19:58  6.0.1928.0  684,544  Mseidrda.dll
Note Because of file dependencies, the most recent fix that contains the previous files may also contain additional files.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

After you apply the update, Managed Provider for DB2 supports Char data types in a parameterized query. The behavior of Char data types depends on the value of the ParameterDirection property as follows:

ParameterDirection.Input

You can use the Char data type against a CHAR data type or against a VARCHAR DB2 data type. When you use the Char data type like this, a single character is sent to the DB2 system.

ParameterDirection.InputOutput/Output

You can use the Char data type if you send a single character. However, you can only expect to have the parameter value remain a Char data type if the following conditions are true:
  • The Parameter.Value DB2 value entry was previously set to a type of Char. For example, the Input value or the InputOutput value is a Char type. Or, for an Output parameter, a dummy Char value is used.
  • The output parameter value is only one character long.

If the previous conditions are not true, the parameter value is a string.

Modification Type:MinorLast Reviewed:6/5/2006
Keywords:kbHotfixServer kbQFE kbfix kbbug KB892398 kbAudDeveloper kbAudITPRO