Microsoft KB Archive/156292

= FIX: Create View with Nested SELECT in CASE Causes Error 206 =

Article ID: 156292

Article Last Modified on 10/3/2003

-

APPLIES TO


 * Microsoft SQL Server 6.5 Standard Edition

-



This article was previously published under Q156292



BUG #: 15817 (6.50)



SYMPTOMS
If you create a view with a CASE statement, and one or more of the result expressions is a SELECT statement, the following error may occur:

Msg 206, Level 16, State 2

Operand type clash: UNKNOWN TOKEN is incompatible with varchar



WORKAROUND
Use the CONVERT function to convert the result of the SELECT statement to the same datatype as the other result expressions.



STATUS
Microsoft has confirmed this to be a problem in Microsoft SQL Server version 6.5. This problem has been corrected in U.S. Service Pack 2 for Microsoft SQL Server version 6.5. For more information, contact your primary support provider.



MORE INFORMATION
The following is an example of a CREATE VIEW command that will cause the error:

CREATE VIEW select_in_case AS  SELECT CASE WHEN 1=0 THEN "false" ELSE (SELECT "true") END "result"

To resolve the error, rewrite the query as:

CREATE VIEW select_in_case AS  SELECT CASE WHEN 1=0 THEN "false" ELSE CONVERT(varchar(255),(SELECT "true")) END "result"

Keywords: kbbug kbfix kbusage KB156292

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.