DUPK Dupkey Mode

DUPK | NDUPK DUPKEY mode on/off. When processing ISAM files, duplicate keys are allowed/not allowed. In DUPK mode, ISAM records with identical keys may be created with Move and Copy operations (see page 8-: Moving/Copying ISAM records). ISAM records with duplicate keys can also be created in DUPK mode using the IR (Insert Records) command (in particular with the K option: key-permitted insertion). The DUPK mode will also work with the W command for ISAM files: the same records (ISAM key) can be written repeatedly to the file.

Standard: NDUPK.