Non-constant or invalid expression is in the TABLESAMPLE or the REPEATABLE clause.

Error Message:
Msg 482, Level 15, State 2, Line 1
Non-constant or invalid expression is in the TABLESAMPLE or the REPEATABLE clause.

Severity level:
15.

Description:
This error message appears when you try to use a non-constant invalid expression in the TABLESAMPLE or REPEATABLE clause.

Consequences:
The T-SQL statement can be parsed, but causes the error at runtime.

Resolution:
Error of the Severity Level 15 are generated by the user and can be fixed by the SQL Server user. The statement cannot be executed this way. You must use a valid expression in these clauses.

Versions:
This error message was introduced with SQL Server 2005.

Example(s):
SELECT *
  FROM Northwind.dbo.Orders
 TABLESAMPLE (RAND() PERCENT);

Remarks:
In the above example we try to use the non-constant function RAND() in the TABLESAMPLE clause. This raises the error.




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