dba

Oracle Oracle DAB two day crash course The purpose of this course is to supplement the DBA's two-day quick (2 days dba) manual. In this course, you will learn more about the tasks outlined in the DBA's two-day quick (2 days dba) manual, and

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 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

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

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

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

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

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

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

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/

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 Oracle Expert Tuning Secrets Objective 　　 Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve

ISQL *plus Page Isql*plus is a product independent of Enterprise Manager. The Isql*plus user interface runs in a Web browser connected to the Internet or your intranet. Isql*plus enables a Web browser to connect to a Oracle database and perform the

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

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 | +------+-

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

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

1. Professional versatile (being an expert generalist) Knowledge of the storage, operating system and other fields, Cross-platform database technology is also necessary to master, You can't leave the Windows environment. Nothing can be done under