oci_fetch() fetches the next row (for SELECT statements) into the internal result-buffer.
Siker esetén TRUE értékkel tér vissza, ellenkező esetben FALSE értéket ad.
For details on the data type mapping performed by the oci8 driver, see the datatypes supported by the driver
Megjegyzés: In PHP versions before 5.0.0 you must use ocifetch() instead. This name still can be used, it was left as alias of oci_fetch() for downwards compatability. This, however, is deprecated and not recommended.