MySQL

Software size: 4.09 MB Software type: domestic software/PHP Program Running Environment: win2003, WINXP, Win2000, NT, winme, Win9x, Linux, and PHP Free version of authorization method Simplified Chinese software Language Related connection

After a local file is uploaded to the server, the server script saves the file. The file is saved to a specific directory on the machine, but there are many inconveniences such as file name duplication. Automatically change the file name in sequence,

// Complete wish you sucess !! # PhpMyAdmin mysql-dump# Http://phpwizard.net/phpMyAdmin/## HOST: localhost: 3306 Database: Database#--------------------------------------------------------## Data table structure: 'bbs _ HTML'# Create Table bbs_

# Sendmsg. php Require "func. php "; If ($ B1 ){ If (is_user_exits ($ fromname) and check_user_password ($ fromname, $ password )){ Sendmsg (); Echo "successful! "; } Else { $ Founderr = 1; Echo "Incorrect username/password! "; } } Else { ?>

Mysql> select something from tbl_name Where to_days (now ()-to_days (date_col) Dayofweek (date)Returns the week index of date (1 = Sunday, 2 = Monday,... 7 = Saturday ). The index value complies with ODBC standards.Mysql> select dayofweek ('2017-

CopyCode The Code is as follows: /* * MySQL database Paging * @ Package pagelist * @ Author yytcpt (Shadow) * @ Version 2008-03-27 * @ Copyrigth http://www.d5s.cn/ */ /* * Paging Style . Page {float: Left; Font: 11px Arial, Helvetica, sans-serif;

Data TypeInteger: It can be expressed in decimal or hexadecimal notation.Point: A floating point number is composed of a number plus a decimal point and a number. The two numeric sequences cannot be empty at the same time.String: a character or

Many friends have installed MySQL but do not know how to use it. In this article, we will learn some common MySQL commands from the aspects of connecting to MySQL, changing the password, and adding users. 1. Connect to MySQL. Format: mysql-h host

1. What is an index? Indexes are used to quickly search for records with specific values. All MySQL indexes are saved as B-trees. If no index exists, MySQL must scan all the records of the entire table from the first record until the required

In most cases, the database is damaged only when the index file is damaged, and the real data is damaged rarely. Most forms of database corruption can be easily repaired.As with the previous verification, there are three methods to fix the

When using MySQL, you must pay attention to security issues. The following are 23 notes for MySQL:1. If the connection between the client and the server needs to span and pass through an untrusted network, you need to use an SSH tunnel to encrypt

Author: Yang xinqi Recently, three projects were started on hand, and the other two started from the bottom layer. One was started for a while and developed by a small team in a small city, there are no dedicated DBAs for database design and

I onceUsed BACKUP methods include mysqldump, mysqlhotcopy, backup table, and select.OUTFILE, or binlog backup, or directly copy data files and related configuration files. MyISAMTables are saved as files, so they are relatively easy to back up. The

First, add the login user permissions on the master server:Grant replicate slave on *. * to 'username' @ 'host' identified by 'Password'Set the my. ini file of the master server.Server-id = 1 # master server idLog-bin # enable binary

For example, table: event (id int (10) auto_increment primary key,Sid int (10) not null,Detail text) I want to delete records with duplicate sid in the event table. Is there such an SQL statement? Or through other methods?Copy codeThe Code is as

The general fuzzy query statement is as follows: Copy codeThe Code is as follows:SELECT field FROM table WHERE a field Like Condition SQL provides four matching modes for conditions: 1, %: represents any 0 or multiple characters. It can match any

Using MYSQL for database backup is also a regular database backup method. It has the same concept as other database servers, but have you ever thought about it, mySQL will have a simpler backup method using the file directory, and it will be faster

Method 1: use the set password command First, log on to MySQL.Format: mysql> set password for username @ localhost = password ('new password ');Example: mysql> set password for root @ localhost = password ('20140901 ');Method 2: Use mysqladmin

1005: An error occurred while creating the table.1006: database creation failed1007: the database already exists. An error occurred while creating the database.1008: the database does not exist. An error occurred while deleting the database.1009:

There is a database online, and there are a lot of records similar to the following in slow log:Copy codeThe Code is as follows:# Time: 130823 13:56:08# User @ Host: repl [repl] @ slave [10. x]# Query_time: 9.000833 Lock_time: 0.000000 Rows_sent: 1