Considerations for CA Datacom/DB Native Access › Index-Only Processing

Index-Only Processing

Index-only processing means retrieving data from the permanent index without reading the related record. Index-only is a decision that CBS makes when it can obtain all of the information it needs from the index. There are several advantages to using index-only processing:

• CA Datacom/DB can scan the index without the I/O necessary read the data in the associated rows (records).
• CA Datacom/DB can perform partial key searches when only a high order portion of the key value is known.