2.222 ALL_MVIEW_ANALYSIS

ALL_MVIEW_ANALYSIS describes the materialized views accessible to the current user. It provides additional information for analysis by applications. Minimal information is displayed for materialized views that do not support query rewrite (such as materialized views with remote master tables or nondeterministic functions).

Related Views

  • DBA_MVIEW_ANALYSIS describes all such materialized views in the database.

  • USER_MVIEW_ANALYSIS describes all such materialized views owned by the current user.

Note:

All of the information in these views is also displayed in ALL_MVIEWS and its related views. Oracle recommends that you refer to ALL_MVIEWS for this information instead of these views.

Column Datatype NULL Description

OWNER

VARCHAR2(128)

NOT NULL

Owner of the materialized view

MVIEW_NAME

VARCHAR2(128)

NOT NULL

Name of the materialized view

MVIEW_TABLE_OWNER

VARCHAR2(128)

NOT NULL

Owner of the container table (see next column)

CONTAINER_NAME

VARCHAR2(128)

Name of the internal container in which the materialized view data is held. Normally this is the same as MVIEW_NAME. For materialized views created before Oracle8i, Oracle Database attaches the 6-byte prefix SNAP$_. If MVIEW_NAME has more than 19 bytes, then Oracle Database truncates the name to 19 bytes and adds a 4-byte sequence number as a suffix to produce a nonambiguous CONTAINER_NAME.

LAST_REFRESH_SCN

NUMBER

System change number (SCN) of the last refresh operation

LAST_REFRESH_DATE

DATE

SYSDATE of the last refresh

REFRESH_METHOD

VARCHAR2(8)

Default refresh method:

  • FORCE

  • FAST

  • COMPLETE

  • NEVER

SUMMARY

VARCHAR2(1)

Indicates whether this materialized view includes a GROUP BY clause or aggregation (Y) or not (N)

FULLREFRESHTIM

NUMBER

Approximate refresh time, in seconds, for full refresh

INCREFRESHTIM

NUMBER

Approximate refresh time, in seconds, for fast refresh

CONTAINS_VIEWS

VARCHAR2(1)

Indicates whether this materialized view contains a view in its definition (Y) or not (N)

UNUSABLE

VARCHAR2(1)

Indicates whether this materialized view is UNUSABLE (inconsistent data) (Y) or not (N). A materialized view can be UNUSABLE if a system failure occurs during a full refresh.

RESTRICTED_SYNTAX

VARCHAR2(1)

Indicates whether this materialized view had a restriction in its defining query that limits the use of query rewrite (Y) or not (N). More complete information is provided by the REWRITE_CAPABILITY column of the *_MVIEWS view.

INC_REFRESHABLE

VARCHAR2(1)

Indicates whether this materialized view can be fast refreshed (Y) or not (N)

KNOWN_STALE

VARCHAR2(1)

Indicates whether the data contained in the materialized view is known to be inconsistent with the master table data because that has been updated since the last successful refresh (Y) or not (N)

INVALID

VARCHAR2(1)

Indicates whether this materialized view is in an invalid state (inconsistent metadata) (Y) or not (N)

REWRITE_ENABLED

VARCHAR2(1)

Indicates whether this materialized view is currently enabled for query rewrite (Y) or not (N)

QUERY_LEN

NUMBER

Length (in bytes) of the query field

QUERY

LONG

SELECT expression of the materialized view definition

REVISION

NUMBER

NOT NULL

Reserved for internal use