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 Purpose  | 
 Determine if a 
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 Syntax  | 
 ResultVar& = ISNOTNULL(StrgExpr)  | 
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 Remarks  | 
 The StrgExpr is examined to determine if it is null, or if it contains one or more characters. The value true (-1) is returned if the StrgExpr contains characters, or false (0) if it is null (zero-length). The complementary function is ISNULL.  | 
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 See also  |