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There are many ways to synchronize tables between Oracle databases, such as triggers, MaterializedView (MV), Stream, and Goldengate. MaterializedVi There are many ways to synchronize tables between Oracle databases, such as triggers, Materialized View (MV), Stream, and Goldengate.
statements: Select 'creatematerialized view log on' | table_name | 'withprimary key; 'fromuser_tables; Create materialized view log on thh with primary key;-- These two do not have primary keys.Create materialized view log on USER_ORDER_INTE with rowid; 4.3.2
In the Oracle 10 Gb database, a materialized view is modified with a simple condition clause, deleted and rebuilt, but the creation fails, reporting that the ORA-00942 table or view does not exist. This is a strange question. Do I
Materialized views implement two-way synchronization of Oracle database tables there are many ways to achieve cross-Database Synchronization of Oracle database tables, such as triggers, Materialized View (MV), Stream, www.2cto.com Materi
How to synchronize two databases in Oracle (using the materialized view) (oracle snapshot instance) I. Technical implementation details unless otherwise specified, the following SQL commands are run under the SYSETM user of the database ora_db2. Assume that you want to copy (or synchronize) all user db1 tables in datab
The new requirement for Oracle DBLinke + Materialized View to synchronize data projects of two databases is to synchronize some of the two Oracle databases. Several methods are available in the experiment environment, today, we will record how DbLink and the
In recent days, I am responsible for the P project environment to provide a view of the W system, due to complex query logic, data volume is large, resulting in each query view time, query slow, inefficient, by the W system personnel complaints. Think, or change to materialized vie
In-depth research on the materialized view (mview) of Oracle III In-depth research on the materialized view (mview) of Oracle III Author: anysql.net. During reprinting, please mark it as a hyperlink Article Original Source
snap_query Default tablespace users Temporary tablespace temp; Grant connect to snap_query; Grant select on userb. test1 to snap_query; Create a materialized view log for the table, requiring that these watchband have a PRIMARY KEY CREATE MATERIALIZED VIEW LOG ON userb. test1 TABLESPACE ts12 WITH PRIMARY KEY Excluding
How to synchronize two databases in Oracle (using the materialized view) (Oracle snapshot instance) How to synchronize two databases in Oracle (using the materialized view) (
Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Create materialized view [view_name] Refresh [Fast | complete | force] [ On [commit | demand] | Start with (start_time) Next (next_time) ] As {Query statements for creating materialized views} These are common syntaxes used to create a
$$ ---------------- -------------- - - ------------------------------ ---------------- 1 January-January -00 I N FE 2814912975871092 As you can see, materialized view logs that do not specify the with COMMIT scn,11.2 also contain xid$$ columns, which are estimated to implement a unified interface. The following is a trace of the refresh process to see how
type of materialized view replication is seldom used.7 replicating Data Using materialized viewsHttp://docs.oracle.com/cd/E11882_01/server.112/e17516/tdpii_reppit.htm#BEHBEBJAmaterialized views for precomputedThis type of materialized v
'), ' dd-mm-yyyyhh24:mi:ss ') asselect*fromuser_ info;--This materialized view is refreshed at 10:25 every day modified refresh time: Altermaterializedviewmv_materialized_test refreshforceondemandstartwithsysdatenextto_date (Concat ( To_char (sysdate+1, ' dd-mm-yyyy '), ' 23:00:00 '), ' dd-mm-yyyyhh24:mi:ss '); or altermaterialized Viewmv_materialized_testrefre
We used the Oracle materialized view incremental refresh mechanism to synchronize the data of a table on database A to another database B on a regular basis. The simplest implementation step we often use is this. First, confirm on database A that the table has a primary key
In-depth research on the materialized view (mview) of Oracle 4 Now, when you move a base table in the first article, you will find that you cannot refresh the table quickly. You must refresh all the tables as follows: SQL> ALTER TABLE t_mvlog move; Table altered. SQL> exec dbms_mview.refresh ('mv _ t_mvlog', 'quick ');Begin dbms_mview.refres
- 1; if @new_orders_cnt>0 then set @new_price_avg=@new_price_sum/@new_orders_cnt; replace into Order_mv values(old.product_name,@new_price_sum,@new_amount_sum,@new_price_avg,@new_orders_cnt); else delete from Order_mv where product_name=@old.name; end if; end; $$ delimiter ; 5. here, the delete trigger has a bug that the Order_mv table cannot be updated when the last order of a product is deleted, I don't know. this
A solution that prompts "ORA-01788: This query block requires a connect by clause" when creating a remote materialized view on Oracle 11g maps a table on the remote server to a local materialized view, use the following statement:
One of the in-depth studies of Oracle's Materialized View (mview) One of the in-depth studies of Oracle's Materialized View (mview) Go to anysql.net A materialized view is provided fro
In query rewrite, we can see that this technology is inseparable from one thing, the materialized view, mview for short. this is the first Technology launched by Oracle in 8i. In addition to using query rewrite, mview also plays an important role in master-slave replication,
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