What Are NESTED_TABLE_GET_REFS Hints Used For? (Doc ID 136403.1)

Last updated on OCTOBER 22, 2012

Applies to:

Oracle Server - Enterprise Edition - Version 8.1.6.0 and later
Information in this document applies to any platform.

Symptoms

You are querying the SQL area and see NESTED_TABLE_GET_REFS hints. This could cause a problem with your other SQL statements being flushed from the SHARED_POOL. You don't know who is generating this hint and would like to know what it is used for and who is generating it.

Portion of the SQL AREA that you are seeing:

       1,401          7 200.142857 2000-12-22/19:01:10       1,118           1
SELECT /*+NESTED_TABLE_GET_REFS+*/"RCADMIN"."DELIVERY_ORDERS_TEMP".* FROM
"RCADMIN"."DELIVERY_ORDERS_TEMP"
 
 1,373          7 196.142857 2000-12-22/19:01:21        1,161           1
SELECT /*+NESTED_TABLE_GET_REFS+*/ "RCADMIN"."DELIVERY_ORDER_LINES".* FROM
"RCADMIN"."DELIVERY_ORDER_LINES"

       1,361        7 194.4285712000-12-22/19:04:08        1,179           1
SELECT /*+NESTED_TABLE_GET_REFS+*/"RCADMIN"."SHIPMENT_CONTAINERS".* FROM
"RCADMIN"."SHIPMENT_CONTAINERS"

Cause

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