Discover oracle shared database link, include the articles, news, trends, analysis and practical advice about oracle shared database link on alibabacloud.com
Oracle basic concepts and comparison with informix
I. ConceptsUser: informix directly uses the user management system of the operating system. Generally, root and informix are used as super operators to manage other users. Oracle has its own user
Oracle SQL Performance Optimization:
1. select an appropriate Oracle optimizerThere are three optimizer types in Oracle
A. Rule (Rule-based) B. Cost (cost-based) C. Choose (selectivity)
Set the default optimizer. You can declare the optimizer_mode
When creating an Oracle database, you should see this option in the database creation assistant wizard, which is the connection mode of the database. In Oracle9i or 10g, we can see two connection modes: a dedicated server connection (dedicated
Abstract: This article describes how to install the oracle9.2.0 database in the RedHat Linux9 environment.
Keyword: oracle9i RedHat Linux9 Kernel Parameter environment variable
Oracle817 is always used in the RedHat linux7.1 environment. Sort out
The racle database system is a complex software system. Without understanding its internal structure principles and relationships, it is impossible to design and Compile High-Quality application software systems or manage a complex application
Oracle is a relational database management system suitable for large-scale, medium-sized, and micro-computers. It uses structured guery language as its database language.
SQL mainly includes three functions: Data Definition, data manipulation
First, synonym synonymConnect sys/123 as SYSDBA;SELECT * from EMP;ORA-00942: Table or view does not existCreate synonym emp for scott.emp;SELECT * from EMP;1. DefinitionA synonym is an alias for a pattern object.Can be a table or view, sequence,
Summary : Description: Linux server operating system: CentOS 5.8 32-bit (note: Please separate partition/data for installation of Oracle database) Linux Server IP address: 192.168.21.150 Oracle database version: Linux_11gr2_database wind
has not been dedicated to share the interchange to find out this article http://blog.csdn.net/tianlesoftware/archive/2010/06/26/5695784.aspx, let me practice a, do understand a lot. Most of the following are transferred from the link, the collection,
The Oracle tutorial being looked at is Oracle Database performance optimization Technology Developer Network Oracle.
Introduction: Fine Place to start, skillfully place diligently. The difference between Master and rookie is: Master know everything,
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.