Discover what is use of materialized view in oracle, include the articles, news, trends, analysis and practical advice about what is use of materialized view in oracle on alibabacloud.com
Incremental synchronization of data in two databases
Oracle Database IP Address: 192.168.0.1 (source database), 192.168.0.2 (target database)
1. Create a TEST table in the source database
Create table TEST
(
Id number not null,
NAME VARCHAR2 (200)
);
create table TEST( ID NUMBER not null, NAME VARCHAR2(200));
2. Insert a data entry
Insert into test (ID, NAME) VALUES (1, '20140901 ');
Commit;
INSERT INTO TEST(ID,NAME) VALUE
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
Oracle dblinke+ materialized view the new requirement of synchronizing data items for two databases is to synchronize parts of the two Oracle databases, and now try several methods in the experimental environment, and then record the Dblink and
Today, someone asked me a materialized view query rewrite problem, finally found that the problem and materialized view of the function is not much relationship, but the implicit conversion caused by the problem.
Let's illustrate the problem by example:
Sql> CREATE TABLE T
Oracle databases support materialized views-not virtual tables based on base tables, but based on actual tables that are actually present in a table-materialized views are stored on nonvolatile storage devices.The following experiment creates the Fast refresh mode on COMMIT, which is implemented in MySQL with the trigg
There is a project because there are more query summaries, considering the speed, so the materialized view is used. Simply put the used to the next to tidy up. First look at the simple Create statement: Create materialized view m
;
ID NAME
---------- ------------------------------
1 T_ab
Sql> SELECT * from mv_t WHERE ID = 1;
No rows selected
Sql> EXEC Dbms_mview. REFRESH (' mv_t ', ' C ')
The PL/SQL process has completed successfully.
Sql> SELECT * from mv_t WHERE ID = 1;
ID NAME Time
---------- ------------------------------ -------------------
1 T_ab 2009-06-21 00:05:09
sql> UPDATE T SET NAME = ' A ' WHERE ID = 1;
1 rows have been updated.
Sql> COMMIT;
Submit completed.
Sql> EXEC Dbms_mview. REFRESH ('
Build a Test tableCREATE TABLE T_table nologging as SELECT * from Dba_objects;create table T_table_1 nologging as SELECT * from Dba_tables;--Create a log recordCreate materialized view Log on t_table with ROWID, sequence (Object_name,object_type,owner) including new Values;create MA terialized View Log on T_table_1 with rowid,sequence (table_name) including new v
1 Preparation work
1.1 Check Initialization parameters
Confirm that the gloal_names is true,job_queue_process greater than 0. Perform the following two Sqlplus commands at both the primary and materialized view sites to check that database initialization parameters meet the requirements.
Show Parameter Global_names
Show parameter Job
If the initialization pa
BKJIA special article: luxurious leather stitching, a grain of wood that you can almost feel, vintage microphone ...... If you are Apple's loyal users, you will never be unfamiliar with these designs. The so-called quasi-materialized design is to create an immersive interaction mode by simulating the existing items in the real world based on the characteristics of the product, make product design more quali
Oracle Stored Procedure refresh materialized view SQL:
Create or replace package body REFRESH_MVIEW IS
-- Author: 241433-- Created: 4:25:04-- Purpose: This PKG is for REFRESH MVIEW
-- Public type declarationsCONS_BCR_LIST VARCHAR2 (40): = 'wb_ui_block_list_all_vw ';CONS_BCR_
Two Oracle 10g databases to synchronize data with materialized views in a specific implementation process
Source Library is 192.168.1.81
Target Library is 192.168.1.96
The server used for the statistics library is 81
Create a read-only user snap_query on the Statist
In the morning, a friend in the forum encountered the following error when trying to invalidate the index:
ORA-02243: the alter index or alter materialized view option is invalidThe statement used is as follows:
Alter index index_name disable;
When I first saw it, I thought it was because of constraints, so I could no
Tags: art limited to_date zed LIS creat rom Upper testI. Creating a remote materialized view log SOURCE side: CREATE materialized VIEW LOG on Tozwdb.test tablespace tozwdb_data with ROWID; Ii. Rights of payment Target Library Create user tozwdb identified by Tozwdb_dev;Grant create session to TOZWDB;Grant resource to t
Tags: select process another business PST TPS definition VPS RelatedA trigger (trigger) is a special stored procedure whose execution is not invoked by the program or manually, but is triggered by an event, such as when an operation on a table (Insert,delete, update) activates it for execution. Triggers are often used to enforce data integrity constraints, busine
Oracle: view the table space where the user is located; oracle: view the user's location
View the tablespace of the current user
[SQL]View plaincopy
Select username, default_tablespac
After the term "view model (View-model)" appears, many developers have a lot of questions. It is clear that the view model needs to deal with the intersection of views, models, and external services, but the precise approach is often carried over by a single stroke.
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.