SQL-DMO

CompareNull Property

The CompareNull property controls evaluation of NULL for equality.

Applies To
DBOption Object

Syntax

object.CompareNull [= value]

object

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.