how to improve database performance

1. select the most suitable field attributeMySQL can support access to large data volumes, but generally, the smaller the table in the database, the faster the query will be executed on it. Therefore, when creating a table, we can set the field

 Data Table Design Principles: 1) Databases should not be designed for the entire system, but should be designed for the Services processed by each component based on the components in the system architecture; the associations between database

Optimization of large database tables: Use the tered tables and the tered Index) Two-dimensional tables and two-dimensional indexes are a technology provided by oracle. The basic idea is to share several tables with the same data items that are

I. Improve database performance 1. Use explain plan to check SQL statement Performance Specific operations: Generate a plan_table table Run rdbms \ admin \ utlxplain. SQL Explain plan set statement_id = 'statement1 'into plan_table For select * from

1. select the most suitable field attributeMySQL can support access to large data volumes, but generally, the smaller the table in the database, the faster the query will be executed on it. Therefore, when creating a table, we can set the field

Article 1 Oracle Architecture Overview Let's take a look at a picture.  This figure shows the architecture of Oracle 9i. It looks complicated. Yes, yes. Now let's take a look:I. Databases, tablespaces, and data files1. DatabaseA database is a

Document directory Oracle pagination tips Oracle pagination tips Oracle tips by Vikas Rajan atrey Also see these important notes on estimating the maximum results from a paginated Oracle SQL query. Invariably while developing data intensive Web

Editor loading... personal understanding about the tablespace, The tablespace is the logical structure of the database. A tablespace can belong to only one database. One database must have only one tablespace, and all database objects are stored in

1. select the most suitable field attribute MySQL can support access to large data volumes, but generally, the smaller the table in the database, the faster the query will be executed on it. Therefore, when creating a table, we can set the field

Eight methods to optimize MySQL Performance 1. select the most suitable field attribute MySQL can support access to large data volumes, but generally, the smaller the table in the database, the faster the query will be executed on it. Therefore,

This section lists the new features for IBM Lotus Domino designer release 8. Periodic updates to Lotus Domino Designer 8 help are available on the web. to download the latest designer help file, go to the documentation library section of the lotus

I have received an article from infoq.ArticleThink of a comment that caused debate a few days ago, so I reprinted the original article and translated it as follows. The level is limited. Please correct haihan for an error. Original article: http://

Abstract: if an index is set on a relatively small column, the index occupies less resources. So how can database administrators lose weight for their own data? I have the following suggestions. In database optimization, it is one of the most common

Oracle9i brings surprising complexity to the Oracle database engine. It introduces many new internal features, including bitmap free lists, redo log-based replication, dynamic SGA, and one of the most important features, multiple block sizes are

Most applications Program Performance Management (APM) solutions are considered and analyzed only Performance issues at a certain level of J2EE applications. This method is insufficient to solve the performance problems of complicated

How can we improve the query efficiency in a ten-million-level database query ?, Search Efficiency How to improve query efficiency in a ten-million database query? 1) Database Design:A. to optimize the query, try to avoid full table scanning. First,

WebForm. aspx Cache, webform. aspxcache Cache (Cache) 1. If the database is queried every time you enter the page and the page content is generated, the website performance will be very poor if the access volume is very large, if the page content is

Oracle, as a large database, is widely used in financial, post and telecommunications, power, civil aviation, and other important sectors with a large data throughput and a wide spread of computer networks. For system administrators, it is

MySQL Data TypesMySQL Data Type MySQL supports multiple data types, including numeric, date/time, and string. Numeric data type: It can be integer TINYINT, SMALLINT, MEDIUMINT, INT, BIGINT, FLOAT and DOUBLE, or DECIMAL. DATE/TIME type: Includes

Tablespaces have two management modes: data dictionary and local hosting. If the data dictionary is used for maintenance, operations that occur on the database segment and are related to disk partition allocation (such as extending a table) will