BUG: Tablealias.Column in FOR UPDATE Causes Error 16928 (181358)

The information in this article applies to:

Microsoft SQL Server 6.5

This article was previously published under Q181358

BUG #: 17803 (6.5)

SYMPTOMS

If you precede a column name with the table alias in the FOR UPDATE clause of a cursor, cursor declaration will fail with the following error:

Msg 16928, Level 16, State 3
The column name 'au_lname' specified in the FOR UPDATE list is invalid
or ambiguous.

The following example statements will demonstrate the problem:

   declare t1_cursor cursor for
   select au_id, au_lname
   from authors a1
   for update of a1.au_lname

WORKAROUND

To work around this problem, either remove the alias or prefix the column name with the table name.

STATUS

Microsoft has confirmed this to be a problem in SQL Server version 6.5. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Modification Type:	Major	Last Reviewed:	10/3/2003
Keywords:	kbBug KB181358