One of the in-depth studies of Oracle's Materialized View (mview)
One of the in-depth studies of Oracle's Materialized View (mview)
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A materialized view is provided from Oracle 8i to Improve the access speed of ap
Create | view
1. If you create a base table that is a materialized view of another user table, you need to give the owner of the materialized view the following permissions:
Grant CREATE any materialized
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
In-depth research on the materialized view (mview) of Oracle III
In-depth research on the materialized view (mview) of Oracle III
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Link: http://www.anysql.net/oracle/star_in_mview.html
When cre
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
DBMS_MVIEW.EXPLAIN_MVIEW can analyze three different materialized view codes:1. defined query 2. a create materialized view Statement 3. An existing MATERIALIZED VIEWThe procedure is as follows: www.2cto.com1. Run the table creation statement SQL> @ F: \ oracle \ product \ 1
Tags: database _id left join Uniq htm 16px NTA www. BasicFirst, the basic knowledge Excerpt from http://www.cnblogs.com/kissdodog/p/3385161.html SQL Server Index - Index ( materialized ) View Nineth article > An indexed view is actually a view that "materialized" a set of u
Tags: itblog custom function ANSI get TCA ORDER by how many ISS goodFirst, the basic concept of indexed viewsAn indexed view is actually a view that "materialized" a set of unique values into a clustered index, which is materialized almost as a table, and its data is stored in one copy (it consumes hard disk space, but
First, the basic concept of indexed viewsAn indexed view is actually a view that "materialized" a set of unique values into a clustered index, which is materialized almost as a table, and its data is stored in one copy (it consumes hard disk space, but the query is fast, for example, you can set count (), sum () in an
When writing a report, you need a table in another database to operate (table_name). However, during the operation, this table has a large field (clob. Use s
When writing a report, you need a table in another database to operate (table_name). However, during the operation, this table has a large field (clob. Use s
When writing a report today, you need a table in another database to operate (table_name). However, during the operation, this table has a large field (clob. No query is available
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: www.2cto.com ---- create database link lnk connect to user1 identified by pwd1 using '(DE
016-09-27 14:36:09,802 ERROR [500.jsp]-Could not commit JDBC transaction; Nested exception is java.sql.sqlexception:ora-12048: Refreshes the materialized view "the". Check_form "Error
ORA-12034: "Teenagers". The materialized view log on Ch_task is newer than what was last refreshed
Org.springframework.transaction.T
Create a recurring incremental refresh materialized view
1, in the source library to establish a synchronized table materialized view log:
create materialized View Log on Db_sbzs.t_sb_yzpz tablespace m_view;
2, create
Tags: problem: Presence refresh Oracl job hot materialized View creation pathIn the Oracle database, after the creation of materialized views, materialized views with the function of the timer, every minute of execution, the system in the Dbms_jobs folder, will automatically create the corresponding job, right-click th
The refresh of materialized views is actually not fundamentally different from normal SQL execution, so you can customize the refresh operation by creating triggers on materialized views.
Just two days ago, someone asked me on the blog, if you add a timestamp column to the materialized view and automatically maintain
materialized view. The advantage is that data synchronization is provided to the dB to ensure that the application does not need to pay attention to the view. If the trigger fails to be executed, the corresponding source table operations will also be rolled back, and the development of the corresponding trigger program is insufficient. This article mainly descri
Materialized view: The normal view used before, the normal view is a logic statement, the performance does not have any elevation, and can not create indexes, and materialized view will be the
ensured. 3. The database trigger is used to implement the materialized view. The advantage is that data synchronization is provided to the DB to ensure that the application does not need to pay attention to the view. If the trigger fails to be executed, the corresponding source table operations will also be rolled back, and the development of the corresponding t
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