MySQL

MySQL 5.1.40 has been released. Some new features are available here, including disk-based data support for MySQL base groups. MySQL 5.1.40 has been released. This version of MySQL has many new features. We hope these new features will make your

This article address: http://blog.csdn.net/useway JavaProgramClerk, what's going on at work First, it is a shell script program, which is very simple for your reference: Date = 'date + % F _ % H' Filename = "/home/bak/databackup/netmanage _" $

Select * from 'M' order by convert (name using GBK) ASC; Eg: Select distinct (B. ID), B. ach_name, B. ach_bussiness, B. ach_finish_date, B. ach_finish_unit, M. areaid, A. areaname from(Select ID, ach_name, thumb, ach_bussiness, ach_finish_unit,

MySQL \. Execute the script file mysql> \. c: \ mydata. SQL Up key can input text previously entered -- Annotation Show create table article; view the structure of the article table Article | create table 'Article' ('id' int (11)

  ./Bin/mysqladminPing   ./Bin/mysqladminVersion Mysqladmin -?   -h, -- Host = Name connect to host. -P, -- password [= Name] password to use when connecting to server. if password is not given it's

It has always been plagued by the MySQL driver in Java, for example Program"Class. forname (" com. MySQL. JDBC. Driver "). newinstance? I started using this operation when I saw someone else on the Internet, but it was always unsuccessful. Later I

I encountered a problem today. You can't specify target table 'basic _ data' for update in from clause Original sentence Update basic_data set manage_user = 4 where ID in (select B. ID from basic_data B join Department D on D. id = B.

MySQL user managementThe MySQL administrator should know how to set the MySQL user account and specify which user can connect to the server and where. MySQL 3.22.11 introduces two statements to make this work easier.Run the grant statement to create

Due to the temporary use of overseas space, I found that the time was always wrong when I published a blog. Based on my previous programming experience, this is a matter of time zone. It is not difficult to solve this problem. Write down my

We sometimes implement multiple choices in the voting system, but most of our practices are to insert our data in a loop, as if in the following situations:1 If (isset ($ _ post ['id']) {23 foreach ($ _ post ['id'] as $ id ){45 $ rs = mysql_query

Garbled characters occur during data insertion,The approximate modification point is:1. Under [client] In my. ini, add: default-character-set = utf82. Under [mysqld] In my. ini, add: default-character-set = utf83. Use jdbc url: JDBC: mysql: //

We often encounter the need to copy the structure or data of a table when using the database. Today we have summarized the corresponding solutions for the complex tabulation structure and data in MySQL. Record it for emergency purposes. In general,

/// /// Q4m queue operation base class/// /// /// Author: luyifeng/// Createday: 2013 05 02Public abstract class myq4m : iq4m {Private bool _ isgetdata = false; Private mysqlconnection _ conn = NULL; Private readonly string _ connectionkey =

Today I used the Java Database persistence-Business Hibernate framework. The following is an example of using hibernate to connect to the MySQL database.   The table creation structure is as follows:   Mysql> DESC test;+ ---------- + -------------- +

I just fixed a small problem. Record it here. When I use a local tool to connect to MySQL on the test server, the following error occurs: lost.Connection to MySQL server at 'reading initial communication packet' First, I want to authorize all IP

Recently I have studied JSP database operations. I was going to use the Oracle database for testing. However, due to the memory limitations of the machine, it is replaced with the MySQL database.   The first time I used JSP to compile a database

Document directory 1. Access Database reading in PHP: 2. html junk code: 3. PHP code running time Recently, jky data has been converted from mypower access to dedecms mysql. Some problems are summarized. 1. Access Database reading in PHP:

A MySQL Union query column is very basic, but very practical. First read the data table. Data Table class:-------------------------------Id cname-------------------------------1 men's wear2 women's leather pants3 female Cotton-----------------------

Some time ago Character SetSorry, I would like to summarize my knowledge in this area today. MySQL character set support has two aspects: Character Set and collation ). The support for character sets is refined to four layers: Server, database,

Http://www.life80.cn/HPFFiles/20101105/1895228A-311C-4D52-B902-3F385BC6FCA1-2010110513541.Html   Programmers who have written PHP + MySQL know that there is a time difference,UNIX TimestampAndFormat dateIt is the two time representation that we