how to improve database performance

Original Link Http://www.codeproject.com/Articles/126898/Sql-Server-How-to-write-a-Stored-procedure-in-Sql Stored procedures are defined as logical SQL statements in sqlserver, which implement specific tasks. There are many benefits to using stored

In Oracle databases, this initialization parameter file is divided into two types: Text parameter files and server parameter files. Their content is the same, but the representation is different. The server parameter files are saved in binary format.

MyBatis learning-delay loading, mybatis-Delay Introduction 　　In resultMap, advanced ing can be implemented (one-to-one and one-to-many ing can be implemented using association and collection). association and collection have the delayed loading

How to make a user feel that the app is running faster, which requires performance testing of the app. The factors that limit the performance of the app are divided into app itself and the backend services that app needs to use. Test the speed at

About MySQL learning, "MySQL must know will" this book, after two months of reading, has been working and some of the life of the trivial dragged, taking advantage of the rest of the evening, to finish the final chapters of the study notes, the next

The database performance tuning process involves a lot of knowledge, including whether the attribute settings of fields are appropriate, whether the index is created properly, and whether the table structure is reasonable, are the database operating

Welcome to the Oracle community forum and interact with 2 million technical staff in Oracle databases. segments are often used to store all the data of specific logical objects. For example, when a database table or index is created, Oracle will

Common principles of oracle tablespace design principles: 1. Generally, a large table or index is allocated with a single tablespace. 2. The Read only object or Read mostly object is grouped into a group and exists in the corresponding tablespace. 3.

This article explains how to completely optimize MySQL database performance in eight aspects. 1. selecting the most suitable field attribute MySQL can support access to large data volumes. However, the smaller the table in the database, the faster

At work, I gradually learned that park, unpark, and ord are powerful in processing binary bytes. Next I will introduce them one by one. The three functions park, unpark, and ord are not used much in our work. In my recent work, binary stream is used

Welcome to the Oracle community forum and interact with 2 million technical staff to enter the Oracle database. This initialization parameter file is divided into two types: Text parameter files and server parameter files. Their content is the same,

Responsibilities and objectives of Database Administrators (1) Responsibilities (2) ensure database security and stable operation 1. Routine Database Operation and Maintenance and Management 1.1 daily database health inspection. 1.2 analyze database

When you query data from a data table, Oracle database provides two query methods. One is to read each row from the table, which is a full table scan that is commonly said; the other is to use ROWI When you query data from a data table, Oracle

As we all know, Oracle time can be directly used for addition and subtraction operations, such Select sysdate, sysdate-2 from dual"SYSDATE" "SYSDATE-2"-----------------------------------"19-5-09" "17-5-09" Obviously, sysdate-2

I. cause of the problem as database files increase, the storage disk space becomes increasingly insufficient. At the same time, to improve the database performance, Database Log File migration is particularly important, that is, the primary and log

Several ignored but useful labels in the php smarty template engine, including the capture tag, config_load tag, php tag, strip tag, and fetch tag, and how to directly use the constants defined by define in the smarty template. The following

The website access speed is too slow. We need to check all links that may drag down the website speed, here we will share some of the SQL statements in the database that have been executed with low efficiency to help us better optimize our website

The storage engine for database configuration optimization is mainly innodb, 2 GB memory is planned for Mysql to run the configuration file. Java code skip-external-locking key_buffer_size = 16 M bytes = 1 M table_open_cache = 512 sort_buffer_size =

MySQL database performance optimization solutionThe actual operating scheme for database performance optimization. With the continuous development of MySQL database, the performance optimization of MySQL database has become more and more important.

  1. Basic    ? DefinitionCaching (cache) is a space-for-time technology that exists in many parts of a computer to keep common data from slow devices in a fast device, taking data directly from a fast device, such as CPU level two cache, memory,