drop materialized view log

. This is evidenced by the query results of user_segment; Parameters related to materialized views: COMPATIBLE must be later than 8.1.0 QUERY_REWRITE_ENABLED = TRUE enable query rewriting (default QUERY_REWRITE_INTEGRITY = ENFORCED-only restrictions and rules ENFORCED and guaranteed by Oracle are used for query (default ); TRUSTED-in addition to Oracle's mandatory and guaranteed constraints and rules, the query can also be rewritten using any relatio

'); END P_mview_refresh; Attention: 1. If you need to refresh multiple materialized views at the same time, you must concatenate each materialized view name with a comma and Each view indicates the refresh mode (f, incremental refresh, C, full refresh, or forced refresh). 2,

materialized views at the same time, you must concatenate each materialized view name with a comma and Each view indicates the refresh mode (f, incremental refresh, C, full refresh, or forced refresh).2, log and materialized

First, Oracle materialized view syntaxCreate materialized view [view_name]Refresh [Fast|complete|force][On [Commit|demand] | Start with (start_time) next (next_time)]As{Create a query statement for materialized views}These are the syntax commonly used by Oracle to create

are created, delete the logs, you will need to re-create the materialized view, otherwise you cannot increment Refresh. 3. Because the materialized view written above is updated according to the primary key, the primary table must have a primary key. 4, the above article red is replaceable, we can according to their o

Refresh FAST clause, you should create a materialized view log on the primary table, so when you create a materialized view with the FAST option, you must create a view log based on th

typically have primary keys, ROWID, and subquery views. 1. Primary key materialized view: The following syntax creates a primary key materialized view on the Remote database table EMP Sql> CREATE materialized VIEW MV_EMP_PK NE

environments, the materialized views commonly created are primary key, rowid, and subquery materialized views. Primary Key materialized views The following statement creates the primary-key Materialized View on the table EMP located on a remote database. SQL> CREATE

choose force Mode, Oracle will determine whether it can be refreshed quickly, or if it can be fast, or else complete. Never refers to materialized views without any refreshFor a materialized view that has already been created, you can modify its refresh mode, such as modifying the materialized

. 1. Primary Key Materialized View: The following syntax creates a primary key Materialized View on the remote database table EMP. SQL> Create materialized view mv_emp_pk Refresh fast start with sysdate Next sysdate more

defaults to force and demand. Note: The materialized view that sets the refresh on commit does not have access to the remote object. When you create a materialized view, you can specify an order by statement to keep the resulting data in a certain sequence. However, this statement is not written to the definition of