浅谈Sybase的备份与恢复及常见问题解决
上一篇写了Sybase的安装,下面就讲一下备份与恢复.这两步也是必须会的.必须掌握的.
1.1 备份
首先说一下备份.
备份的命令是
dump database 数据库名字 to 路径.
我们先用命令连接sybase
isql -U sa -P -S 192.168.1.45:5000
然后我们输入,却出现了一个一个问题
C:/Documents and Settings/Piggy>isql -U sa -P -S 192.168.1.45:5000 1> Dump database test to 'c:test.dump' 2> go Msg 7205, Level 17, State 2: Server 'STANDWINXP', Line 1: Can't open a connection to site 'SYB_BACKUP'. See the error log file in the ASE boot directory. Msg 7205, Level 18, State 3: Server 'STANDWINXP', Line 1: Can't open a connection to site 'SYB_BACKUP'. See the error log file in the ASE boot directory. 1>
被告知不能打开SYB_BACKUP的链接.此时不能进行备份操作.现在就来解决这个问题.
我们先来看一下sybase目录中的一个文件
C:/sybase/OCS-15_0/bin 下面的dsedit.exe.双击后看到
然后我们在看一下数据库master对应的系统表中sysservers中
因为我这个是修改过的,如果没有修改的话,在对应srvname为SYB_BACKUP的那条数据的srvnetname为null.也就是我们要更改这个值.
结合上面的两个图片,我们要把这里写成STANDWINXP_BS. 然后重启服务器.并且对应的服务必须开启否则会失败.
然后重新备份.
C:/Documents and Settings/Piggy>isql -U sa -P -S 192.168.1.45:5000 1> use test 2> go 1> dump database test to "c:test.dmp" 2> go Backup Server session id is: 12. Use this value when executing the 'sp_volchanged' system stored procedure after fulfilling any volume change request from the Backup Server. Backup Server: 6.28.1.1: Dumpfile name 'test1020907F4A ' section number 1 mounted on disk file 'c:test.dmp' Backup Server: 4.188.1.1: Database test: 1404 kilobytes (39%) DUMPED. Backup Server: 4.188.1.1: Database test: 1726 kilobytes (100%) DUMPED. Backup Server: 3.43.1.1: Dump phase number 1 completed. Backup Server: 3.43.1.1: Dump phase number 2 completed. Backup Server: 3.43.1.1: Dump phase number 3 completed. Backup Server: 4.188.1.1: Database test: 1740 kilobytes (100%) DUMPED. Backup Server: 3.42.1.1: DUMP is complete (database test).
此时就已经成功了.
1.2 恢复
恢复用此命令
load database JbpmTAStandard from 'c:/JbpmTAStandard.dump'
恢复后要用命令激活一下: