Using MySQL database friends, backup and restore of MySQL is more important. The important thing to do simply, today we use the mysqldump and source commands to back up the restore, divided into Windows and Linux under the MySQL backup and restore
1, the MySQL database does not have an incremental backup mechanism, when the amount of data is too large backup is a big problem. Fortunately, the MySQL database provides a master-slave backup mechanism, which is to write all the data in the
MySQL tutorial delete data SQL statement usage
The delete from statement is used to delete records from a database table.
Grammar
DELETE from table_name WHERE COLUMN_NAME = some_value
Note: SQL is not sensitive to case. Delete from is equivalent
MySQL "on DUPLICATE KEY UPDATE" syntaxif on DUPLICATE KEY UPDATE is specified at the end of the INSERT statement and the row is inserted causing duplicate values in a unique index or primary key, the update is performed on the row where the
1 Slow query definition
MySQL records all SQL statements that execute a time threshold that exceeds the Long_query_time parameter setting. The slow query log is the log that logs these SQL.
2 Open Slow query log
Locate the MySQL configuration
mysql| Solve | The problem
Multi-language support introduced from MySQL 4.1 is really great, and some of the features have gone beyond other database systems. However, during the test, I found that using the PHP statements prior to MySQL 4.1 would
Summary of root password recovery method in MySQL database
Method One
1. Download MySQL source distribution, do not differentiate the operating system, we need something is the same;
2. Rename your MySQL folder under the data directory for
The reason why I want to write an article today is that MySQL5.1 's release brings a powerful weapon to design a super power database, and any MySQL DBA should learn and use it as soon as possible. I think that if you can use the new features of
As a MySQL administrator, what you can do to maintain the security and integrity of your MySQL installation. In this article, we will discuss the following security-related issues in more detail:
Why is security important and what attacks should we
This article is mainly from the principles, manuals and source analysis in PHP query MySQL return a large number of results, memory footprint problem, while the use of the MySQL C API also involved.
Yesterday, a colleague in the PHP discussion
mysql| user Management MySQL administrators should know how to set up a MySQL user account, which user can connect to the server, where to connect, what to do after the connection. MySQL 3.22.11 started introducing two statements to make this work
MySQL lost the password is very sad things, especially the root password lost: (. I pretend to play lost also lost, but in case it is a server hanging trouble can be big! Now assume that the root password was lost because of the intrusion. Here I
mysql| Package
class_mysql.php
//########################################################################### TITLE:: CLASS MYSQL##### FILE:: class_mysql.php##### PROJECT:: webvision##### RELATED DOCUMENT:: None##### DESCRIPTION::##### to provide
js|mysql| Interactive | solve | chinese | Chinese garbled first implements a Stringconvert bean (Gbtoiso () and ISOTOGB () two methods), The solution to the MySQL database when interacting with some of the Chinese garbled problem: in the JSP program
This code is modified from Uchome code because it is handled in order to solve the efficiency of uchome. PHP implementation of MySQL read and write separation
This code is modified from Uchome code because it is handled in order to solve the
mysql| Data | Database MySQL database with its short, convenient, fast, free and so on the advantages of many sites are currently the preferred
database, but generally with the combination of php+mysql to develop a variety of dynamic pages, in fact,
MySQL 5.5 has 3 different formats for binary log (Binlog): Mixed,statement,row, the default format is Statement. Summarize the pros and cons of these three format logs.
MySQL Replication replication can be based on a single statement (Statement
One, Miss Access era
The table structure of access if you want to automatically insert the current time, you can enter the default value now () when the column is defined and you can automatically insert the current time. and MySQL does not work,
Defining Data Tables
If a computer manufacturer, its database is stored in the machine and accessories product information. The table used to keep the whole product information is called a Pc, and the table used to hold the information of accessory
This article mainly introduces the MySQL database index damage and repair experience sharing, need friends can refer to the following
The problem and solution of MySQL table index being corrupted
Afternoon work, surprised to smell my Dedecms
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