http://www.51cto.com/html/2005/1028/9851.htm可以將這個指令碼放進crontab,每天淩晨執行一次,自動備份 這個指令碼每天最多隻執行一次,而且只保留最近五天的備份在伺服器上。 #!/bin/bash #This is a ShellScript For Auto DB Backup #Powered by aspbiz #2004-09 #Setting #設定資料庫名,資料庫登入名稱,密碼,備份路徑,日誌路徑,資料檔案位置,#以及備份方式
InstallSSH Client and Server (for my remote access) sudoapt-get install ssh InstallDatabase Server sudoapt-get install mysql-server-5.0 InstallApache HTTP Server sudoapt-get install apache2 InstallPHP5 and Apache PHP5
1. 匹配型子查詢的改寫select * from table1 where column1 in (select column2a from table2 where column2b = value);改寫為:select table1.* from table1, table2 where table1.column1 = table2.column2a and table2.column2b = value;2. 非匹配(即缺失)型子查詢的改寫select * from table1
一、使用SSL安全連線To use SSL connections between the MySQL server and client programs, your system must support either OpenSSL or yaSSL and your version of MySQL must be built with SSL support. To make it easier to use secure connections, MySQL is
mysql怎麼合并多條記錄的單個欄位去一條記錄,今天在網上找了一下,方法如下: 測試用表結構:-- ------------------------------------------------------------ 表的結構 `tet`--CREATE TABLE IF NOT EXISTS `tet` ( `id` int(11) NOT NULL, `name` varchar(255) NOT NULL, `url` varchar(255) NOT NULL)
MySql 增加使用者 和 修改使用者密碼 --進入mysql命令列--切換到mysql系統資料庫use mysql;--查看所有使用者select * from user ;use mysql;--增加使用者,注意密碼使用password()函數進行加密insert into user set host='%',user='test',password=password('test'),ssl_cipher='<BLOB>',x509_issuer='<BLOB>',
MySQL使用者授權GRANT 語句的文法如下: GRANT privileges (columns) ON what TO user IDENTIFIEDBY "password" WITH GRANT OPTION對使用者授權mysql>grant rights on database.* to user@host identified by "pass";例1:
Exception in thread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2" java.lang.NoClassDefFoundError: Could not initialize class com.mysql.jdbc.ConnectionImpl SQLClientInfoException 是 JDK 6.0