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 This column is obsolete and maintained for backward compatibility.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: