DBA的工作列表上写了些什么(1)
一、启动和关闭数据库
一)启动数据库
$ svrmgrl SVRMGR> connect internal (实例启动) SVRMGR> startup |
二)关闭数据库
$ svrmgrl SVRMGR> connect internal SVRMGR> shutdown [immediate/abort] |
immediate:正在访问数据库的会话被完全终止、资源有序释放后才关闭数据库。
abort:会话立即中止,数据库立即关闭。
二、备份与恢复
一)逻辑备份与恢复(即卸库与装库)
1、卸库:export
不带参数:
$ cd $ORACLE_HOME/bin $ exp Username: cwadmin Password: Connected to: Oracle8 Enterprise Edition Release 8.0.4.0.0 - Production PL/SQL Release 8.0.4.0.0 - Production Enter array fetch buffer size: 4096 > Export file: expdat.dmp >pzexdat.dmp (1) E(ntire database), (2)U(sers), or (3)T(ables): (2)U >1 Export grants (yes/no): yes >y Export table data (yes/no): yes >y Compress extents (yes/no): yes >y
|
export工作开始自动进行最终出现:
Export terminated successfully without warnings. |
带参数,可选参数如下(可用exp help=y 得到):
Keyword Description (Default) Keyword Description (Default) USERID username/password FULL export entire file (N) BUFFER size of data buffer OWNER list of owner usernames FILE output file (EXPDAT.DMP) TABLES list of table names COMPRESS import into one extent (Y) RECORDLENGTH length of IO record GRANTS export grants (Y) INCTYPE incremental export type INDEXES export indexes (Y) RECORD track incr. export (Y) ROWS export data rows (Y) PARFILE parameter filename CONSTRAINTS export constraints (Y) CONSISTENT cross-table consistency LOG log file of screen output STATISTICS analyze objects (ESTIMATE) DIRECT direct path (N) FEEDBACK display progress every x rows (0) POINT_IN_TIME_RECOVER Tablespace Point-in-time Recovery (N) RECOVERY_TABLESPACES List of tablespace names to recover VOLSIZE number of bytes to write to each tape volume
|
例:$exp userid=cwadmin/cwadmin tables=‘(sys_cwxx,sys_menu)’ file=pzexport.dmp
2、装库
1)不带参数
$ cd $ORACLE_HOME/bin $ imp Username: cwadmin Password: Connected to: Oracle8 Enterprise Edition Release 8.0.4.0.0 - Production PL/SQL Release 8.0.4.0.0 - Production Import file: expdat.dmp >pzexdat.dmp Enter insert buffer size (minimum is 4096) 30720> 10240 Export file created by EXPORT:V08.00.04 via conventional path List contents of import file only (yes/no): no > Ignore create error due to object existence (yes/no): no >y Import grants (yes/no):yes >y Import table data (yes/no):yes >y Import entire export file (yes/no):no >y |
import 工作开始自动进行最终出现:
Import terminated successfully with warnings. |
带参数,可选参数如下(可用imp help=y 得到):
Keyword Description (Default) Keyword Description (Default) USERID username/password FULL import entire file (N) BUFFER size of data buffer FROMUSER list of owner usernames FILE input file (EXPDAT.DMP) TOUSER list of usernames SHOW just list file contents (N) TABLES list of table names IGNORE ignore create errors (N) RECORDLENGTH length of IO record GRANTS import grants (Y) INCTYPE incremental import type INDEXES import indexes (Y) COMMIT commit array insert (N) ROWS import data rows (Y) PARFILE parameter filename LOG log file of screen output DESTROY overwrite tablespace data file (N) INDEXFILE write table/index info to specified file CHARSET character set of export file (NLS_LANG) POINT_IN_TIME_RECOVER Tablespace Point-in-time Recovery (N) SKIP_UNUSABLE_INDEXES skip maintenance of unusable indexes (N) ANALYZE execute ANALYZE statements in dump file (Y) FEEDBACK display progress every x rows(0) VOLSIZE number of bytes in file on each volume of a file on tape |
例:$imp userid=cwadmin/cwadmin tables=‘(sys_dwxx, sys_menu)’ file=pzexdat.dmp
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DBA的工作列表上写了些什么(1) 一、启动和关闭数据库 一)启动数据库 $ svrmgrl SVRMGR connect internal (实例启动) SVRMGR startup 二)关闭数据库 $ svrmgrl SVRMGR connect internal SVRMGR shutdown [immediate/abor...
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