how to improve database performance

Excerpt from: http://symphony.b3log.org/article/1376986299174First, what is the cache1, Cache is a special memory subsystem of buffer memory, which replicates frequently used data to facilitate fast access2, generally located in the speed difference

Configuring larger memory for the database can improve database performance effectively. Because the database is running, a region is marked in memory as the data cache. Typically, when a user accesses a database, the data is first read into the

The advantage of parallel query is that it can handle query job through multiple threads, which improves the efficiency of query. The SQL Server database provides a parallel query for database servers with multiple CPUs to optimize the performance

Components of Oracle Architecture Oracle architecture includes a number of basic components we'll cover them in more detail below. 1, Oracle Server: Oracle server contains a variety of file structure, process structure and memory structure, but

Article from: Also can not find the source address where, in short, thank the author of the sharing two important processes that are most overlooked in Oracle There are two processes in the Oracle database that are very small, but they are very

The difference between Oracle and MySQL 1. is a large database and MySQL is a small and medium-sized database, Oracle market share of 40%,mysql only about 20%, while MySQL is open source and Oracle price is very high Oracle. 2. Oracle supports large

Introduction to Oracle Databases First, introduce Oracle database systems are a set of software offerings at the core of distributed databases delivered by Oracle (Oracle), the most popular client/server (CLIENT/SERVER,C/S) or browser/server

In an Oracle database, the more frequent the submission is, the better. On the contrary, bulk submissions can get better performance. This article gives you a simple demonstration of the performance difference between submitting a row to a bulk

One, what is the cache 1. Cache is a special memory subsystem of high speed buffer memory, which replicates frequently used data to facilitate fast access 2, usually in the speed difference between the two hardware/software, used to coordinate the

1, select the most applicable field properties MySQL can support a large amount of data access, but generally speaking, the smaller the table in the database, the faster the query executed on it. Therefore, in order to achieve better performance

1.JDBC programming to implement database operations Package COM.IOT.MYBATIS.JDBC; Import java.sql.*; Import java.sql.Connection; Import Java.sql.DriverManager; Import java.sql.PreparedStatement; Import Java.sql.ResultSet; Import

Park,unpark,ord These 3 functions, in our work, they are not much estimated. In my most recent job, because communication requires a binary stream, the interface is received in PHP. At that time, a lot of information was consulted. Because they are

Brief introduction Major web properties, such as Wikipedia, Facebook, and Yahoo!, use the LAMP architecture to service millions of of requests a day, while Web application software such as Wordpress, Joomla, Drupal, and SugarCRM uses its

Compressing database files can improve the performance of your database, but sometimes when you compress a database, you are reminded that the database cannot be compressed. If you delete a database object in an Access database, or if you delete an

Do Java development, how to operate the database. As you know, using JDBC (Java Data Base Connectivity), which is a Java API for executing SQL statements, provides unified access to a variety of relational databases, consisting of a set of classes

When Microsoft publishes SQL Server2005, it extends the ability to take advantage of filegroups by introducing partitions. In addition, we can now use SQL Server2005 engine to do online database recovery. So with all of these available features, how

Package Com.js.ai.modules.aiyq.testf;import Java.sql.connection;import Java.sql.drivermanager;import Java.sql.preparedstatement;import Java.sql.resultset;import Java.sql.sqlexception;public class JdbcTest {public static void Main (string[]

JDBC Program1. Create a Java project to join the JAR packageDatabase driver package (MySQL)In fact, only the top of the drive package, because the use of MySQL, the general version is not a problem, this machine is MySQL 5.6Below is the Oracle

To put it simply, learning Oracle database is two goals: to ensure consistency of database data and improve database performance (this doesn't matter with logs). Log function: Just to ensure the consistency of database data;1. Oracle Log

MySQL Database optimization techniques:The optimization of the database is a comprehensive technology, which mainly includes: 1. The design of the table is reasonable (in accordance with the three paradigms, 3NF) 2. Add an appropriate index