CRecordset::SetParamNull

void SetParamNull( int nIndex**, BOOL** bNull = TRUE );

Parameters

nIndex

The zero-based index of the parameter.

bNull

If TRUE (the default value), the parameter is flagged as Null. Otherwise, the parameter is flagged as non-Null.

Remarks

Call this member function to flag a parameter as Null (specifically having no value) or as non-Null. Unlike SetFieldNull, you can call SetParamNull before you have opened the recordset.

SetParamNull is typically used with predefined queries (stored procedures).

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See Also   CRecordset::FlushResultSet