一、Stopping Grid Control and All Its Components 1.停止OMS服务 [oracle@ocm2 oms10g]$ cd /u01/app/oracle/OracleHomes/oms10g/bin/ [oracle@ocm2 bin]$ ./emctl stop oms Oracle Enterprise Manager 10g Release 10.2.0.1.0 Copyright (c) 1996, 2005 Or
一、Stopping Grid Control and All Its Components1.停止OMS服务 [oracle@ocm2 oms10g]$ cd /u01/app/oracle/OracleHomes/oms10g/bin/ [oracle@ocm2 bin]$ ./emctl stop oms Oracle Enterprise Manager 10g Release 10.2.0.1.0 Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved. Oracle Management Server is Down. [oracle@ocm2 bin]$
2.停止Application Server Control Console [oracle@ocm2 bin]$ ./emctl stop iasconsole Oracle Enterprise Manager 10g Release 10.2.0.1.0 Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
Stopping Oracle 10g Application Server Control ... ... Stopped. [oracle@ocm2 bin]$
3.切换目录至OPMN并停止Application Server components [oracle@ocm2 oms10g]$ cd opmn/ [oracle@ocm2 opmn]$ cd bin/ [oracle@ocm2 bin]$ pwd /u01/app/oracle/OracleHomes/oms10g/opmn/bin [oracle@ocm2 bin]$ ./opmnctl stopall opmnctl: stopping opmn and all managed processes... [oracle@ocm2 bin]$
4.切换目录并停止agent
[oracle@ocm2 bin]$ pwd /u01/app/oracle/OracleHomes/agent10g/bin [oracle@ocm2 bin]$ ./emctl stop agent Oracle Enterprise Manager 10g Release 10.2.0.1.0. Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved. Stopping agent ... stopped. [oracle@ocm2 bin]$
5.停止Repository数据库 [oracle@ocm2 bin]$ sqlplus "/as sysdba"
SQL*Plus: Release 10.2.0.2.0 - Production on Tue Jul 22 18:15:48 2014
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production With the Partitioning, Oracle Label Security, OLAP and Data Mining options
SYS@EMREP> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down. SYS@EMREP> exit Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production With the Partitioning, Oracle Label Security, OLAP and Data Mining options [oracle@ocm2 bin]$
6.停止Repository数据库监听程序 [oracle@ocm2 bin]$ lsnrctl stop
LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 22-JUL-2014 18:17:53
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=ocm2.localdomain)(PORT=1521))) The command completed successfully [oracle@ocm2 bin]$
停止结束
二、Starting Grid Control and All Its Components
1.启动Repository数据库对应的监听程序和数据库(注意SID) [oracle@ocm2 bin]$ lsnrctl start
LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 22-JUL-2014 18:20:06
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Starting /u01/app/oracle/product/10.2.0/db_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 10.2.0.2.0 - Production System parameter file is /u01/app/oracle/product/10.2.0/db_1/network/admin/listener.ora Log messages written to /u01/app/oracle/product/10.2.0/db_1/network/log/listener.log Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ocm2.localdomain)(PORT=1521))) Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=ocm2.localdomain)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 10.2.0.2.0 - Production Start Date 22-JUL-2014 18:20:06 Uptime 0 days 0 hr. 0 min. 0 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/oracle/product/10.2.0/db_1/network/admin/listener.ora Listener Log File /u01/app/oracle/product/10.2.0/db_1/network/log/listener.log Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ocm2.localdomain)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0))) Services Summary... Service "PLSExtProc" has 1 instance(s). Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service... The command completed successfully [oracle@ocm2 bin]$ sqlplus "/as sysdba"
SQL*Plus: Release 10.2.0.2.0 - Production on Tue Jul 22 18:20:30 2014
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
Connected to an idle instance.
SYS@EMREP> startup ORACLE instance started.
Total System Global Area 285212672 bytes Fixed Size 1260420 bytes Variable Size 125830268 bytes Database Buffers 155189248 bytes Redo Buffers 2932736 bytes Database mounted. Database opened. SYS@EMREP> exit Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production With the Partitioning, Oracle Label Security, OLAP and Data Mining options [oracle@ocm2 bin]$
2.切换路径并启动OMS [oracle@ocm2 bin]$ cd /u01/app/oracle/OracleHomes/oms10g/bin/ [oracle@ocm2 bin]$ pwd /u01/app/oracle/OracleHomes/oms10g/bin [oracle@ocm2 bin]$ ./emctl start oms Oracle Enterprise Manager 10g Release 10.2.0.1.0 Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved. opmnctl: opmn started Starting HTTP Server ... Starting Oracle Management Server ... Checking Oracle Management Server Status ... Oracle Management Server is Up. [oracle@ocm2 bin]$
3.切换路径启动OracleAS Web Cache [oracle@ocm2 bin]$ pwd /u01/app/oracle/OracleHomes/oms10g/opmn/bin [oracle@ocm2 bin]$ ./opmnctl status
Processes in Instance: EnterpriseManager0.ocm2.localdomain -------------------+--------------------+---------+--------- ias-component | process-type | pid | status -------------------+--------------------+---------+--------- DSA | DSA | N/A | Down HTTP_Server | HTTP_Server | 17072 | Alive LogLoader | logloaderd | N/A | Down dcm-daemon | dcm-daemon | 17039 | Alive OC4J | home | N/A | Down OC4J | OC4J_EMPROV | N/A | Down OC4J | OC4J_EM | 17116 | Alive WebCache | WebCache | N/A | Down WebCache | WebCacheAdmin | N/A | Down
[oracle@ocm2 bin]$ ./opmnctl startproc ias-component=WebCache opmnctl: starting opmn managed processes... [oracle@ocm2 bin]$ ./opmnctl status
Processes in Instance: EnterpriseManager0.ocm2.localdomain -------------------+--------------------+---------+--------- ias-component | process-type | pid | status -------------------+--------------------+---------+--------- DSA | DSA | N/A | Down HTTP_Server | HTTP_Server | 17072 | Alive LogLoader | logloaderd | N/A | Down dcm-daemon | dcm-daemon | 17039 | Alive OC4J | home | N/A | Down OC4J | OC4J_EMPROV | N/A | Down OC4J | OC4J_EM | 17116 | Alive WebCache | WebCache | 17205 | Alive WebCache | WebCacheAdmin | 17197 | Alive
[oracle@ocm2 bin]$
4.切换路径并启动agent
[oracle@ocm2 bin]$ pwd /u01/app/oracle/OracleHomes/agent10g/bin [oracle@ocm2 bin]$ ./emctl start agent Oracle Enterprise Manager 10g Release 10.2.0.1.0. Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved. Starting agent ..... started. [oracle@ocm2 bin]$
最后确认ias-component全部已经启动 [oracle@ocm2 bin]$ cd /u01/app/oracle/OracleHomes/oms10g/opmn/bin/ [oracle@ocm2 bin]$ ./opmnctl status
Processes in Instance: EnterpriseManager0.ocm2.localdomain -------------------+--------------------+---------+--------- ias-component | process-type | pid | status -------------------+--------------------+---------+--------- DSA | DSA | N/A | Down HTTP_Server | HTTP_Server | 17072 | Alive LogLoader | logloaderd | N/A | Down dcm-daemon | dcm-daemon | 17039 | Alive OC4J | home | N/A | Down OC4J | OC4J_EMPROV | N/A | Down OC4J | OC4J_EM | 17116 | Alive WebCache | WebCache | 17205 | Alive WebCache | WebCacheAdmin | 17197 | Alive
[oracle@ocm2 bin]$ ./opmnctl startproc ias-component=DSA opmnctl: starting opmn managed processes... [oracle@ocm2 bin]$ ./opmnctl startproc ias-component=LogLoader opmnctl: starting opmn managed processes... [oracle@ocm2 bin]$ ./opmnctl startproc ias-component=OC4J opmnctl: starting opmn managed processes... [oracle@ocm2 bin]$ ./opmnctl status
Processes in Instance: EnterpriseManager0.ocm2.localdomain -------------------+--------------------+---------+--------- ias-component | process-type | pid | status -------------------+--------------------+---------+--------- DSA | DSA | 18173 | Alive HTTP_Server | HTTP_Server | 17072 | Alive LogLoader | logloaderd | 18197 | Alive dcm-daemon | dcm-daemon | 17039 | Alive OC4J | home | 18326 | Alive OC4J | OC4J_EMPROV | 18324 | Alive OC4J | OC4J_EM | 17116 | Alive WebCache | WebCache | 17205 | Alive WebCache | WebCacheAdmin | 17197 | Alive
[oracle@ocm2 bin]$

mysql'sblobissuitableForStoringBinaryDataWithInareLationalDatabase,而alenosqloptionslikemongodb,redis和calablesolutionsoluntionsoluntionsoluntionsolundortionsolunsolunsstructureddata.blobobobsimplobissimplobisslowderperformandperformanceperformancewithlararengelitiate;

toaddauserinmysql,使用:createUser'username'@'host'Indessify'password'; there'showtodoitsecurely:1)choosethehostcarecarefullytocon trolaccess.2)setResourcelimitswithoptionslikemax_queries_per_hour.3)usestrong,iniquepasswords.4)Enforcessl/tlsconnectionswith

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掌握添加MySQL用户的方法对于数据库管理员和开发者至关重要,因为它确保数据库的安全性和访问控制。1)使用CREATEUSER命令创建新用户,2)通过GRANT命令分配权限,3)使用FLUSHPRIVILEGES确保权限生效,4)定期审计和清理用户账户以维护性能和安全。

chosecharforfixed-lengthdata,varcharforvariable-lengthdata,andtextforlargetextfield.1)chariseffity forconsistent-lengthdatalikecodes.2)varcharsuitsvariable-lengthdatalikenames,ballancingflexibilitibility andperformance.3)

在MySQL中处理字符串数据类型和索引的最佳实践包括:1)选择合适的字符串类型,如CHAR用于固定长度,VARCHAR用于可变长度,TEXT用于大文本;2)谨慎索引,避免过度索引,针对常用查询创建索引;3)使用前缀索引和全文索引优化长字符串搜索;4)定期监控和优化索引,保持索引小巧高效。通过这些方法,可以在读取和写入性能之间取得平衡,提升数据库效率。


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