| Oracle® Objects for OLE C++ Class Library Developer's Guide 10g Release 2 (10.2) Part Number B14308-01 |
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| Oracle® Objects for OLE C++ Class Library Developer's Guide 10g Release 2 (10.2) Part Number B14308-01 |
|
Applies To
Description
This method returns TRUE if the field can accept NULL values.
Usage
oboolean IsFieldNullOK(int index) const
oboolean IsFieldNullOK(const char *fieldname) const
Arguments
| Arguments |
Description |
|---|---|
| index |
The 0-based index of the field. The index is the position of the field in the SQL query that created the current record set. |
| fieldname |
The name of the field, as expressed in the SQL query. |
NULL is a possible value for Oracle database fields. This database NULL is different from a C++ NULL. Database NULLs mean "no value set". Some fields are not allowed to contain NULLS. This routine tells you whether the indicated field is allowed to have NULL values.
Return Value
TRUE if the field can contain NULLs; FALSE otherwise.
