Oracle

Introduction: oracle DatabasePatch Is to patch the software, which is equivalent to giving a warning, and is crucial to the stable operation of the system. This article describes in detail and systematically the classification, installation, and

We know that,ORACLEThe FLASHBACK feature is added for 10 Gb.FLASHBACK TABLEIt is used to repair tables that are accidentally deleted. However, today we found an interesting problem with the flashback table. Let's take a look at the following: I will

We have previously introduced: For a detailed introduction of the Oracle database flashback personality, this article willFlashback of Oracle 10 Gb DatabaseThe configuration and usage are summarized for your reference. You can directly apply the

Last time we introduced:Oracle Database ProcessServer process details. This article mainly introducesBackground ProcessWe know that Oracle instances include two parts: SGA and a group of background processes. The actual maintenance tasks required

I have previously introduced:OracleDatabaseRMAN Incomplete recoveryThis document describes how to restore an Oracle database based on SCN.Log serial number recoveryTo help you. Log serial number recovery refers to restoring the database to the

Oracle SQL developer is a database development tool that comes with oracle 11. to use it, you need to install java jdk. I installed jdk1.6 update2, but it cannot be used. Later I installed update26. I have not made any in-depth research on which jdk

Solutions to ORA-16014 errors1. Problems and SolutionsSQL> select status from v $ instance;STATUS------------MOUNTEDSQL> alter database open;Alter database open*Row 3 has an error:ORA-16014: log 2 serial number 27 Unarchived, no available

  It is often asked whether the conditional writing sequence of the Where clause in oracle has an impact on SQL Performance. My intuition is that if this order has an impact, Oracle should have been able to achieve automatic optimization for a long

The prerequisite for ORACLE's information lifecycle management tool ILMA is Apex.Apex is installed by default in oracle 11g Release 2. It is not enabled after installation. You can use the following method to enable it.SQL> show userUSER is "SYS"SQL>

1. Combination of LOOP and IF in loop LOOP CasesDeclareX number;BeginX: = 0;Loop -- start of loopX: = x + 1;If x> 3 then -- cyclic bodyExit;End if;Dbms_output.put_line ('value of inner x '| x); -- cyclic bodyEnd loop; -- end loopDbms_output.put_line

Official Oracle Installation documentationHttp://download.oracle.com/docs/cd/B28359_01/install.111/b32002/toc.htm  1. Install related packages1.1 install the following 10g Package on redhat 4:Required package versions (or later ):Binutils-2.15.92.0.2

The method for starting Scott user in Oracle. In Oracle10g, (g stands for 'network') the Scott user in the database is locked during installation. When installing Oracle, you can directly unlock the user. If you forget to unlock the user, you can

Use RMAN to configure automatic Incremental Backup in centosSystem: centos 5.5Database: oracle 11gR2 1. Backup PolicyPerform level 0 incremental backup on SundayPerform Level 2 incremental backup on MondayPerform Level 2 incremental backup on

Configure tnsnames for the local oracle NET service name. oracle local NET service name configuration tnsnames. the ora file has strict format requirements. Today, a service name is manually added to the configuration file, and the service_name

Database backup and recovery are common and important. Logical backup in ideal state is restored. EXP backup is used to extract data from the database and write data to the operating system file. you can export a complete database. 2. you can also

 This morning, a performance test was conducted on a platform of the company. When the database connection was used up, it was necessary to analyze the database access bottleneck problem. The OEM was successfully installed on the database server,

The following describes the concepts and operations of partition tables in oracle table partitions: concept of table partitions in Table spaces and partition tables specific roles of table partitions Advantages and Disadvantages of table partitions

The Oracle database fuzzy query statement is easy to ignore: the cause of the null record problem: the SQL statement is as follows: select count (*) from test; the result is 1390. select count (*) from test where bb not like '% disable %' result 393.

Oracle calls the stored procedure to execute a small DEMO of CRUD ------- Modify (Table Name, primary key ID, column to be modified) create or replace procedure pro_code_edit (p_tbname in varchar2, p_ct_id in varchar2, p_codename in varchar2) as

Export all database objects under a user (do not export data) [sql] [lubinsu@200-168-1-2 dpump]$ exp lubinsu/lubinsu owner=lubinsu rows=n indexes=y compress=y buffer=65536 feedback=100000 file=/home/lubinsu/dpump/lubinsu.dmp