dba

Solve the problem ORA-01157 problem how to solve? Environment: Redhat 9 + Oracle 817 Question: After yesterday's sudden power off, the database was prompted for this error after it was started. The data is not archived, and the data file is also

The use of Muliple block sizes provides DBAs with additional control over the UNIX disk i/0 subsystem. ORACLE's DBA should understand the fundamentals of some UNIX disk I/O. Disk I/O is an important part of Oracle response time. reducing disk I/O

After Oracle installs, there is a default database, and in addition to this default database, we can create our own database. For starters, to avoid trouble, you can use the ' Database Configuration Assistant ' Wizard to create a database. After

Some of the commercial data in the network database were posted online after the theft, and the price data of the company's commercial website were maliciously modified ... Similar cases, the Internet search for a bit, really a lot. The only reason

oracle| Data | database Finishing: Fenng Date: 25-oct-2004 Source: Http://www.dbanotes.net Version: 0.91 Sometimes, as a DBA, you may need to collect the deployed Oracle database information. Hardware configuration, operating system conditions,

First introduce the next Jane Chaoyang. is now working in Alibaba (China) Network Technology Co., Ltd. DBA Team Operation Department, Jenzhiang is the MySQL Technology essay contest third winner (winning article: the implementation of MySQL

Log in with the SYS user, authorize the DBA to the OE user so that the execution plan can be viewed with the OE user: Oe@ocm> Conn/as SYSDBA Connected. Sys@ocm> Grant DBA to OE; Grant succeeded. Sys@ocm> Conn Oe/oe Connected. Oe@ocm> set

Working with utilities If you have more than one version of SQL Anywhere installed on your computer, you must be aware of your system path when you use the utility. Because the installation will append the latest installed version of the executable

Oracle oracle9.2 installed in redhad2.1 1. Create Oracle Users Su-root Groupadd dba Groupadd Oinstall USERADD-G oinstall-g dba Oracle passwd Oracle 2. Create installation directory Su-root Mkdir/opt/oracle Mkdir/opt/oracle/

Object Design Usage Specification 1. Commonly used data types Description: The following is a commonly used data type introduction, table design according to the actual application selection. (1) Number (P,S): The exact numeric type of the fixed

Yesterday, successfully helped the customer recover a failed database. The reason for the failure is that the technician truncate several data dictionary tables in the database, which directly results in the database being unavailable. The

There are many ways to start MySQL, we will discuss it in one by one One, mysqld Mysqld is a MySQL service Mysqld the [mysqld] and [Server] group groups in the My.cnf file when it is started this way (Each group has [] to split) In general, we

Oracle When I took the oracle9i OCP, one day on the internet, suddenly found in the oracle of this Gold certification project on the launch of a new higher level of certification, it is OCM, the full name is Oracle Certified Master, I translated it

Oracle 1. Modifying the kernel Vi/etc/system Set shmsys:shminfo_shmmax=268435456 (native memory is 512M) Set Shmsys:shminfo_shmmin=1 Set shmsys:shminfo_shmmni=100 Set shmsys:shminfo_shmseg=10 Set semsys:seminfo_semmni=110 Set semsys:seminfo_semmns=3

Must understand the SQL knowledge One, two table outer join query The existing two table A,b contents are as follows Mysql> select * from A; +------+------+ | ID | Col1 | +------+------+ | 1 | AA | | 2 | BB | | 3 | CC | +------+-

Briefly describe the process of adding a node in the Oracle 10203 for Solaris SPARC Dual-node environment. Shared storage is already configured on a third node, which focuses on the configuration on the operating system and on Oracle. This article

I. Oracle built-in role connect and resource permissions Grant Connect,resource to user; Connect role:--is the typical right to give end users, the most basic Alter session--modifying sessions Create CLUSTER--Create a cluster Create DATABASE

oracle| Server | advanced This article will introduce Oracle Database 9IR2 installation under red Hat Linux Advanced server2.1, if you have experience installing Oracle8i, the following installation process is trivial: Hardware requirements: Hard

Application Purpose ======= The purpose of this article are to provide a understanding of freelists and freelist. SCOPE & Application =================== This article was intended to being used by DBAs to help understand the how freelists and

Do MySQL 5.1 stored programs and functions work for replication? Yes, the standard behavior performed in stored programs and functions is copied from the primary MySQL server to the from server. Can the stored programs and functions created on the