| 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 the precision of the number field.
Usage
int GetFieldPrecision(int index) const
int GetFieldPrecision(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 |
In an Oracle database, one column data type is number. If a field has a data type of number, it has two additional attributes: scale and precision. The precision is the total number of decimal digits. In Oracle this can range from 1 to 38.
Precision has no meaning for non-number fields.
Return Value
The precision of the number field. On error (which includes calling this method on a non-number field) a 0 is returned.
