Database Administrator

Frequently Used DB2 instance creation statements on AIX: # Useradd-g db2iadm1-m db2inst6# Useradd-g db2fadm1-m db2fenc6# Db2icrt-u db2fenc6-p 60034 db2inst6# Chuser fsize =-1 fsize_hard =-1 data =-1 data_hard =-1 stack =-1 stack_hard =-1 rss =-1 rss_

Oracle has been installed many times in both Linux and Solaris, and almost never succeeded. At the beginning of the installation, I couldn't even see the installation page. Later, I can see the installation page. Some errors will be reported during

Oracle multi-Table query, as its name implies, queries the data you want from multiple tables. Here we will test the emp table and dept table under the scott user. The structure of the two tables is as follows: SQL> select * from dept;DEPTNO DNAME

MySQL 5.0 and later versions support stored procedures, which are consistent, efficient, and secure. MySQL 5.0 and earlier versions do not support stored procedures. However, with the increasingly sophisticated MySQL technology, stored procedures

Oracle has provided the Flashback Query function based on rollback segments starting from 9i, which can be used to restore wrong DML operations. in Oracle 10 Gb, the flash-back query has been greatly improved. It is no longer limited to flash-back

Restrictions on Oracle eXpress Edition data filesRestrictions on oracle XE are described as follows:1. Express Edition is limited to a single instance on any server;2. Express Edition may be installed on a multiple CPU server, but may only be

After a whim, I suddenly wanted to install Oracle10g and Oracle11g under OEL6. The two versions coexist to facilitate learning and experiment. This installation process is not difficult, if you have installed 10g and 11g respectively, I believe the

Oracle9i starts to provide a flashback query so that consistent data at a time point in the past can be found as needed, which is implemented through Undo. This function has a lot of limitations, that is, the undo of related transactions cannot be

After MySQL enables bin-log, when calling stored procedures, functions, and triggers, the error 1418 is displayed: ERROR 1418 (HY000): This function has none of DETERMINISTIC, no SQL, or reads SQL DATA in its declaration and binary logging is

First, put the classes12.jar/ojdbc14.jar driver package in the Oracle Installation Directory (D: \ oracle \ product \ 10.2.0 \ db_1 \ jdbc \ lib \) to the tomcat lib directory. "Java" Import="Java. SQL .*"PageEncoding ="GBK"%> "Oracle. jdbc.

When talking about the Gap Processing Mechanism of dataguard, the measure most people can say is to set fal_server and fal_client. From 9i, Oracle provides two types of log gap detection and processing mechanisms. For gap processing, the fal _ *

Today, I encountered a problem when I was doing database restoration. I had two backup sets under the directory. I wanted to specify a backup set for restoration. I checked the information and made a simple experiment record: RMAN> run {2> allocate

Note: The Oracle version is 10 GB and the Linux version is RedHat Enterprise Linux 5.6. 1. Check whether the system has installed the file packages required by oracle. Rpm-q gcc make binutils openmotif setarch compat-db compat-gcc-c ++

Commands for Dump files include exp/imp and expdp/impdp. These four commands have been compiled in related articles. Oracle EXP/IMP description Comparison between exp/imp and expdp/impdp and some optimization items in use Oracle expdp/impdp

I. Oracle Data Dictionary A data dictionary is a place where Oracle stores database information. It is used to describe data. For example, the Creator information, creation time information, tablespace information, and user access permission

Oracle Database, also known as Oracle RDBMS, or Oracle for short. Is a relationship between OracleDatabaseManagement System. It still occupies a major share in the database market. Lawrence herison and his friends, former colleagues Bob Miner and Ed

1. Develop form in formbuilder ->From path $ AU_TOP/forms/USDownload TEMPLATE: TEMPLATE. fmb, and change the TEMPLATE Name to STUDENTS. fmb. -> Download all the files in the resource folder under the $ AU_TOP directory. -> Place the preceding

Statement: the answer is a personal understanding of Oracle. 1. Because of a power outage, instance failure has occurred. From what point in the redo log does recovery in and where does it end? A. Current redo log and inactive redo log B. Checkpoint

Oracle installation is accompanied by employees data for SQL exercises. MySQL also provides the employees database, but it is not installed with the database, and its download link is extremely hidden, which may cause many people to not notice. :

Recently, I found that there are more or less many problems in the online articles on creating a library with bare devices bound to linux lv, which is easy to mislead beginners. Therefore, I sorted out the preliminary steps for directly creating a