Oracle 11.2g 手工创建数据库详解 手工建库
Oracle 11.2g 手工创建数据库详解 手工建库，对于人已一个Oracle 数据库的实例（系统全局区域和后台进程）使用安装参数文件来启动
1、确定用户的实例标志（DB_NAME 和SID）。racle实例标志隐该与数据库名字（DB_NAME）
一致。该实例标志用来避免与其他Oracle 实例混淆，而这里所指的其他Oracle 实例你可在系统上创建和运行。
2、创建安装参数文件
对于人已一个Oracle 数据库的实例（系统全局区域和后台进程）使用安装参数文件来启动。要为数据库创建参数文件，用户将要使用用户的操作系统来制作一个Oracle在其发行介质上的安装参数文件的一份拷贝。给这个新的拷贝起一个新的文件名。然后用户可以编辑并定制数据库的这个新文件。
3确认db_name=erp 并且环境变量ORACLE_SID也为erp
第一步、把原来的一个文本启动参数文件命名为cp initcorcl.ora initerp.ora
因该在目录 $ORACLE_HOME/dbs下面。
二、编辑initerp.ora
重要的编辑这几个参数：
orcl.__db_cache_size=146800640
orcl.__java_pool_size=4194304
orcl.__large_pool_size=4194304
orcl.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment
orcl.__pga_aggregate_target=188743680
orcl.__sga_target=200321536
orcl.__shared_io_pool_size=0
orcl.__shared_pool_size=94549376
orcl.__streams_pool_size=4194304
*.audit_file_dest='/u01/app/oracle/admin/erp/adump'
*.audit_trail='db'
*.compatible='11.2.0.0.0'
*.control_files='/u01/app/oracle/oradata/erp/control01.ctl','/u01/app/oracle/flash_recovery_area/erp/control02.ctl'
*.db_block_size=8192
*.db_domain='localdomain'
*.db_name='erp'
*.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area'
*.db_recovery_file_dest_size=4039114752
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=erpXDB)'
*.memory_target=188968064 #这个数要小于 /etc/shm
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDO01'
红色标注非常重要一定要把原来的orcl改为 erp
如果是目录的地一定要建立目录。
这里 ： mkdir –p /u01/app/oracle/admin/erp/adump 会的鬼递归简历子目录
mkdir –p /u01/app/oracle/oradata/erp
第二步打开term设定环境变量，其中 ORACLE_SID=erp
Sqlplus “/as sysdba”
SQL> startup nomount
如果nomount起来了，那么说明initerp.ora好了。
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