CRecordset::SetParamNull
Visual Studio 2005
Flags a parameter as Null (specifically having no value) or as non-Null.
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.
Unlike SetFieldNull, you can call SetParamNull before you have opened the recordset.
SetParamNull is typically used with predefined queries (stored procedures).
