CompareNull Property
This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.
The CompareNull property controls evaluation of NULL for equality.
Syntax
object
.CompareNull [=value]
Parts
- object
An expression that evaluates to an object in the Applies To list
- value
TRUE or FALSE
Data Type
Boolean
Modifiable
Read/write
Prototype (C/C++)
HRESULT GetCompareNull(LPBOOL pRetVal);
HRESULT SetCompareNull(BOOL NewValue);
Remarks
If TRUE, the expression NULL = NULL evaluates as NULL.
If FALSE, the expression NULL = NULL evaluates as TRUE.
Any value for CompareNull is overridden by the AnsiNulls property, which controls NULL evaluation for a client session.