MySQL

This document describes how to install and configure a MySQL cluster based on two servers. MySQL can continue to run when any server encounters a problem or goes down. Note!Although this is a MySQL cluster based on two servers, there must be an

PHPChina info: IfIBMSuccessful acquisitionSun,DatabaseFor the market, this is really an interesting thing. Let's sort out this rumor before we discuss it further. This transaction is still a rumor. Although it is reported that it may come true in

[Content Overview]PHP and MySQL database open source technologies have become the best combination for developing Web applications. Web 2.0 provides a broader world for them .. This book is a well-known classic book and is well known for its

When you create a full-text search for mysql, The following error occurs: mysql The used table type doesn't support FULLTEXT indexes cannot be created either when creating a table or when modifying a table, find the cause. There are two solutions:

This article is Monty's speech at the o'reilly Open Source Convention 2000 conference, it involves the working principle of MySQL table high-speed cache, MySQL expansion/Optimization-providing faster speed, MySQL index usage, learning to use EXPLAIN,

This article is one of Monty's speeches at the o'reilly Open Source Convention 2000 conference, this is a detailed MySQL optimization document covering the following aspects: what we can optimize, hardware optimization, disk optimization, operating

In the database, the UNION and union all keywords combine the two results into one, but both have different usage and efficiency.UNION in MySQLUNION filters out duplicate records after table link. Therefore, after table link, it sorts the generated

MySQL AB, the world's largest open-source database developer, is establishing its European branch. MySQL AB has established a new sales office in the Netherlands, and MySQL will focus on providing support for Benelux enterprise customers, namely the

Applications (such as PHP) execute MYSQL statements in batches for a long time. Execute an SQL statement, but the SQL statement is too large or the statement contains BLOB or longblob fields. For example, processing image data. MySQL server has gone

When using mysql, you sometimes need to query records with unique fields. Although mysql provides the keyword distinct to filter out redundant duplicate records, only one record is retained, but it is often used to return the number of records that

1. SQL statement. insert is followed by 1000 values for one-time submission. 2. use the connection pool to keep the persistent connection inserted; 3. replace the storage engine of Mysql with Inforbright, convert the data into text, and import data

I. Problems Encountered In fact, it is not a big problem O (distinct _ distinct) O: Sometimes we may want to directly process the select result set in batch processing or stored procedures. At this time, we need a database object that allows us to

Add: Insert Insert into Table Name (Field 1, Field 2, Field 3 ...... Field N) values (value 1, value 2, value 3 ); If you do not declare the fields to be inserted, all fields are inserted by default. During insertion, note the table to which you

Mysql IFNULL operation When a field in the SQL query is empty, the default value is set in the query result. The most stupid method is to process the query results, traverse the query results, and set the value when it is null: The Code

1. Use phpmyadmin to modify the TABLE. repair table 'your TABLE name' or directly on the database management interface, select a TABLE, as shown in figure 2. If the modification fails, we can try to stop mysql first when replacing the local mysql

Oracle Database supports materialized views-instead of a virtual table based on the base table, the data of materialized views is stored on non-easy storage devices based on the actual real table existing in the table.The following experiment

Ru Zhiqiang said in "zookeeper", "Looking at Hongying again, it was not even a half-hour's work that would be delayed, and she never saw her eat a snack, at first glance, you will know that it is a person who will be careful and live." Some people

In SQL server, how does one track SQL using an event probe?In fact, the method is very simple. Enable the mysql log function and view the tracking log.How to enable mysql log:Configuration method in windows: My Version: 5.0.37-community-nt-log

Use MySQL Migration Toolkit to quickly import Oracle Data to MySQLLet's talk nonsense first.I have recently learned some database knowledge. I have been familiar with Oracle and MySQL before, and recently I am very popular with MongoDB

The bow whispered to the arrow, "Your freedom is mine ". Schema is like an arrow and bows like Python. Choosing Python is the biggest freedom of Schema. Freedom should be an opportunity to make yourself better. (I) MySQLdb Section Mysql> use sakila;