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MSSQLSERVER_137

Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).

Product Name

SQL Server

Event ID

137

Event Source

MSSQLSERVER

Component

SQLEngine

Symbolic Name

P_SCALAR_VAR_NOTFOUND

Message Text

Must declare the scalar variable "%.*ls".

This error occurs when a variable is used in a SQL script without first declaring the variable. The following example returns error 137 for both the SET and SELECT statements because @mycol is not declared.

SET @mycol = 'ContactName';

SELECT @mycol;

One of the more complicated causes of this error includes the use of a variable that is declared outside the EXECUTE statement. For example, the variable @mycol specified in the SELECT statement is local to the SELECT statement; thus it is outside the EXECUTE statement.

USE AdventureWorks2012;

GO

DECLARE @mycol nvarchar(20);

SET @mycol = 'Name';

EXECUTE ('SELECT @mycol FROM Production.Product;');

Verify that any variables used in a SQL script are declared before being used elsewhere in the script.

Rewrite the script so that it does not reference variables in the EXECUTE statement that are declared outside of it. For example:

USE AdventureWorks2012;

GO

DECLARE @mycol nvarchar(20) ;

SET @mycol = 'Name';

EXECUTE ('SELECT ' + @mycol + ' FROM Production.Product';) ;

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