Oracle

  Materialized View is a special physical table. The Materialized view is relative to a common view. A common view is a virtual table, which has many application limitations. Oracle converts any View query to a view SQL statement query. This

In Oracle 10 Gb, the Flash back family is divided into the following members:Flashback DatabaseFlashback DropFlashback TableFlashback Query (Flashback Query, Flashback Version Query, and Flashback Transaction Query)The following describes the

When a non-ORACLE user logs on to the database, the following error occurs:[Marven @ hpserver2 ~] $ Sqlplus "/as sysdba"  SQL * Plus: Release 10.2.0.4.0-Production on Wed Feb 1 15:55:07 2012 Copyright (c) 1982,200 7, Oracle. All Rights

Author: runming QQ: 226399587 http://blog.csdn.net/runming9181. Restore Flashback Table from RECYCLEBINTo put it simply, if we regard the flashback query as a recovery record, the flashback table is used to restore the table (because the record is

Author: skateTime: 2010-08-20   Table join   Table join refers to the association between tables in an SQL statement to retrieve relevant data from one or more tables. If an SQL statement has more than two associated tables, So what is the order of

Common Sqlplus commands are as follows: 1. login system user:Sqlplus and then enter the system user name and password Log on to another user:Conn user name/password;  2. Create a tablespace Create tablespace space name Datafile 'C: "Space name' size

Oracle uses PL/SQL Developer to manage data objects and data. This tool also provides many convenient and quick operations, so that we no longer complain about the ugly and difficult-to-use UI of Oracle itself. Most of the operations for table

Summary of Automatic startup of Oracle Database on Solaris: 1. Automatic startup of Solaris on Solaris will automatically run/etc/rc. all scripts in the d directory. The larger N, the higher the execution level. The script starting with S runs

In oracle, the content of each control file is the same. A control file records the physical structure of the entire database. It contains the following information: 1. database Name 2. file Name and path of the data file and redo log file 3. for

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> @

Oracle 11g error ORA-28000 the account is locked I. the cause and related factors of this error are caused by the default setting of "PASSWORD_LIFE_TIME = 180 days" in the default profile in oracle11g, there is a password expiration problem in

The most important purpose of redo log files is to restore data (you can also use logminer). It records the database buffer cache (high-speed cache area) in the system global area (sga) all change information is recorded in the log buffer. However,

Environment: the database is in Open state, then rm-rf users. dbf (delete users tablespace), and finally retrieve the users. dbf file. When replying, the reply method has little to do with the database version (because it is a physical file), but

Four steps for displaying the cursor in PLSQL this example briefly introduces the locking and consistent read problems involved in the four processes of the cursor processing. explicit cursor processing requires four PL/SQL steps: www.2cto.com 1

Password File recovery _ EM login failure solution 1. The default location of the password file is/u01/oracle/product/10.2.0/db_1/dbs/orapwSID. If the password file is damaged, you cannot log on remotely. em cannot log on. The error "username or

Install the ORACLE 10g client in windows 7. Because oracle 10g is not compatible with windows 7, we can modify some files in the installation software to achieve the installation goal. A) open the path "\ ORACLE10G_client \ stage \ prereq \ client \"

PL/SQL converts rows and columns. In this blog post, we write a simple conversion of rows and columns. Here is a specific example. Some people have asked related questions on the Forum before. Many of the answers mentioned above are feasible. Of

ORA-600 (qersqCloseRem-2) error the customer's 10.2.0.4 RAC for Hp-un Environment encountered this error. Error message: Wed Feb 29 19:42:05 2012 Errors in file/opt/app/oracle/admin/orcl/udump/orcl1_ora_11261.trc: ORA-00600: internal error code,

Start Database Error ORA-18008: cannot find OUTLN schema problem symptom: database version oracle 11g r2hrdb1> startupORACLE routine has started. Www.2cto.com Total System Global Area 4392697856 bytesFixed Size 2233616 bytesVariable Size 1090521840

Oracle note (7) data update, transaction processing, data pseudo column 1. Data Update operations in the DML operation syntax, in addition to queries, there are also database update operations for data, the data update operation mainly refers to