8.165 V$DB_OBJECT_CACHE

V$DB_OBJECT_CACHE displays database objects that are cached in the library cache. Objects include tables, indexes, clusters, synonym definitions, PL/SQL procedures and packages, and triggers.

Column Datatype Description

OWNER

VARCHAR2(64)

Owner of the object

NAME

VARCHAR2(1000)

Name of the object

DB_LINK

VARCHAR2(64)

Database link name, if any

NAMESPACE

VARCHAR2(64)

Library cache namespace of the object: TABLE/PROCEDURE, BODY, TRIGGER, INDEX, CLUSTER, OBJECT

TYPE

VARCHAR2(64)

Type of the object: INDEX, TABLE, CLUSTER, VIEW, SET, SYNONYM, SEQUENCE, PROCEDURE, FUNCTION, PACKAGE, PACKAGE BODY, TRIGGER, CLASS, OBJECT, USER, DBLINK

SHARABLE_MEM

NUMBER

Amount of sharable memory in the shared pool consumed by the object

LOADS

NUMBER

Number of times the object has been loaded. This count also increases when an object has been invalidated.

EXECUTIONS

NUMBER

Not used

See Also: "V$SQLAREA" to see actual execution counts

LOCKS

NUMBER

Number of users currently locking this object

PINS

NUMBER

Number of users currently pinning this object

KEPT

VARCHAR2(3)

(YES | NO) Depends on whether this object has been "kept" (permanently pinned in memory) with the PL/SQL procedure DBMS_SHARED_POOL.KEEP

CHILD_LATCH

NUMBER

Child latch number that is protecting the object. This column is obsolete and maintained for backward compatibility.

INVALIDATIONS

NUMBER

Total number of times objects in the namespace were marked invalid because a dependent object was modified

HASH_VALUE

NUMBER

Hash value of the object

LOCK_MODE

VARCHAR2(9)

Current lock mode of the object

PIN_MODE

VARCHAR2(9)

Current pin mode of the object

STATUS

VARCHAR2(19)

Status of the object

TIMESTAMP

VARCHAR2(19)

Timestamp for the specification of the object

PREVIOUS_TIMESTAMP

VARCHAR2(19)

Previous timestamp for the specification of the object

LOCKED_TOTAL

NUMBER

Total number of times the object has been locked

PINNED_TOTAL

NUMBER

Total number of times the object has been pinned

PROPERTY

VARCHAR2(80)

Property of the object. Possible values include HOT or HOTCOPY when the library cache hot copy feature is used using DBMS_SHARED_POOL.MARKHOT.

FULL_HASH_VALUE

VARCHAR2(32)

Full hash value of the object

CON_ID

NUMBER

The ID of the container to which the data pertains. Possible values include:

  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data

CON_NAME

VARCHAR2(64)

Container name of the object. The value of this column is NULL in non-CDBs.

ADDR

RAW(8)

Address of the handle for this object

EDITION

VARCHAR2(138)

Edition name

See Also: