could refer to more than one table listed in the FROM clause of your SQL statement

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When I run this query in SQL Server Management Studio it works fine, but when I try to populate a grid in VB.net it gives me the following error

"could refer to more than one table listed in the FROM clause of your SQL statement"

Below is the query:

SQL

SELECT Distinct T1.QID, T1.Title, T1.Vendorid, T1.Severity, T1.Published, Total
FROM Missing_Patch_Table T1,
(
    SELECT QID, COUNT (IP) as Total
    FROM Missing_Patch_Table
    Group by QID
) as T2
where T1.QID = T2.QID
Order by Total desc, Severity, QID;

can someone please help me on this

Posted 16-Jan-15 1:34am

ChintanHiremath

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Peter Leow 16-Jan-15 7:53am

Would you mind showing your sql statement inside VB.NET? Use the "Improve question" widget.

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ZurdoDev · Answer 1 · 2015-01-16T01:54:00

Solution 1

It means one of the fields where you haven't specified the table name exists in both tables. It could be Total, Severity, or QID. Just put T1. or T2. in front of each field, even in the ORDER BY clause and that should fix the error.

Posted 16-Jan-15 1:54am

ZurdoDev