MySQL

A problem occurs immediately when a function is created: Error 1418 (hy000): this routine has none of deterministic, no SQL,Or reads SQL data in its declaration and binary logging is enabled(You * might * want to use the less safe

For large systems, Oracle and sqlserver are undoubtedly the best choice. You can see that there are more and more small websites. They don't have their own servers, just buy others' space and databases, however, the performance of such a small

CopyCode The Code is as follows: Decompress MySQL to D: \ mysql and edit my. ini. [Mysqld]Port = 3306Basedir = "D:/MySQL /"Datadir = "D:/MySQL/data /"Tmpdir = "D:/MySQL/tmp /"Default-character-set = utf8Default-storage-engine =

Using a feature of the SELECT statement, you can easily implement the paging of MySQL query results. The implementation process of this method is described in detail in the following sections. MySQL paging query is a common problem. How can this

To achieve this effectIf a group by condition is used, the results will be much less. How can I combine multiple conditions for filtering? Copy codeThe Code is as follows: group by fielda, fieldb, fieldc... During the loop, you can determine

Recently, I took the time to change to SyntaxHighlighter. Because the label at the beginning of the coolcode plug-in is Or [coolcode], and SyntaxHighlighter is [Code lang = "php"]This (or other ). You can only convert the old format into a new one.

SQL statement: Copy codeThe Code is as follows: update item I, resource_library r, resource_review_link l set I. name = CONCAT ('review: ', r. resource_name) where I. item_id = l. instance_id And l. level = 'item' and r. resource_id = l. resource_id

Server Load Balancing Scheme with a large number of users I. Preface Ii. Compilation and Installation Iii. Install MySQL and memcache 4. install Apache, PHP, eAccelerator, and php-memcache 5. Install Squid Vi. Postscript I. Preface and

To prevent security risks, we generally set an independent database access account for each database. This account has only the permission to access the database. Here is a detailed demonstration: 1. First, we need to log on to phpMyAdmin without

MySQL databaseManagement is a crucial part for the database. To understand the management of the MySQL database, you must start from the basics. Only the commands used in database management are first known, the actual operation is much easier.

In the architecture of Apache, PHP, and MySQL, MySQL has the greatest impact on performance and is also a key core component. For Discuz! The same is true for Forum programs. Whether MySQL settings are reasonably optimized directly affects the speed

First Copy codeThe Code is as follows: # This File was made using the WinMySQLAdmin 1.4 Tool #2004-2-23 16:28:14 # Uncomment or Add only the keys that you know how works. # Read the MySQL Manual for instructions [Mysqld] Basedir = D:/mysql #

Restore A Database: mysql-h localhost-u root-p123456 www Back up a database: mysqldump-h localhost-u root-p123456 www> d: \ www2008-2-26. SQL // Test in the program // $ Command = "mysqldump -- opt-h $ dbhost-u $ dbuser-p $ dbpass $ dbname | gzip> $

I. Major changes from 4.0 to 4.1 If an InnoDB table containing the TIMESTAMP field is created in MySQL from version 4.1.0 to version 4.1.3. You need to recreate the table when upgrading to 4.1.4 and later, because the storage format has

After the 64-bit Windows 7 system is installed, many things are arranged, which is always the same. Yesterday, when we started to configure php + apache, echo phpinfo () was no problem, however, when you connect to mysql, the page is reset. The

The following code is used: I. Back up the database and download it to the local [db_backup.php]Copy codeThe Code is as follows: // Set the SQL file storage file name$ Filename = date ("Y-m-d_H-i-s"). "-". $ pai_dbname. ". SQL ";// Saved file

MySQL (the best combination with PHP) database errors caused by power failure or abnormal shutdown are very common problems. There are two ways to use the SQL statement of check table and repair table in MySQL (the best combination with PHP, another

This means that the database and table names are case-insensitive in Windows and are case-sensitive in most types of Unix systems. A special case is Mac OS X, which is used by the default HFS + file system. However, Mac OS x also supports UFS

This article will introduce you to these unknown features. View query results in XML format By using the traditional-xml option to call the MySQL command line client program, you can view MySQL query results in XML format (instead of the

Background: in actual use of MySQL, if the access volume is large, a large number of Locked processes may occur, but it is difficult to identify which SQL statements are causing problems, when many people encounter such problems, they mostly query