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2 May 2003 Learn how to manually refresh materialized views and create refresh groups using Oracle supplied packages. can group related views together. Oracle supplies the DBMS_REFRESH package with the following procedures; The MAKE procedure is used to create a new Refresh group. We will make a
Run this script to refresh data in materialized view: BEGIN DBMS_SNAPSHOT. a bit late to the game, but I found a way to make the original syntax in this question work (I'm on Oracle 11g). ** first switch to schema execution about 2.5 times. More info here: How to Refresh a Materialized View in Parallel
REFRESH MATERIALIZED VIEW. The REFRESH MATERIALIZED VIEW statement refreshes an asynchronous materialized view manually. Required privilege. Required privilege on the materialized view log tables: No privilege is required for the owner of the materialized view log tables. SELECT ANY TABLE if not the
logging_clause Specify LOGGING or NOLOGGING to establish the logging characteristics for the materialized view. The logging characteristic affects the creation of the materialized view and any nonatomic refresh that is initiated by way of the DBMS_REFRESH package. The default is the logging characteristic of the
In the case of ON DEMAND materialized views, the refresh can be performed with refresh methods provided in either the DBMS_SYNC_REFRESH or the DBMS_MVIEW packages: The DBMS_SYNC_REFRESH package contains the APIs for synchronous refresh, a new refresh method introduced in Oracle Database 12c,
ON DEMAND : The refresh is initiated by a manual request or a scheduled task. The QUERY REWRITE clause tells the optimizer if the materialized view should be consider for query rewrite operations. An example of the query rewrite functionality is shown below. The ON PREBUILT TABLE clause tells the database to use
Question: I have a materialized view where I want to manually refresh the materialization. How do I force a refresh of a materialized view? Answer: Oracle provides the dbms_mview package to manually invoke either a fast refresh or a complete refresh, where F equals Fast Refresh and C equals Complete Refresh: execute
Use the ALTER MATERIALIZED VIEW statement to modify an existing materialized view in one or more of the following ways: . keep the contents of the materialized view synchronized with those of the master table, then Oracle recommends that you manually perform a complete refresh of all materialized views dependent
2 May 2003 Learn how to manually refresh materialized views and create refresh groups using Oracle supplied packages.
One of the most useful replication and data warehousing features in Oracle is materialized views. Materialized views, also known as There is a substantial volume of documentation regarding how to ensure that the refresh is actually doing a fast refresh. New features in 10g including DBMS_MVIEW.EXPLAIN_MVIEW and
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