oracle初始化参数设置

正在看的oracle教程是:oracle初始化参数设置。 alter database datafiled:\orant\database\user1orcl.ora resize 1000m;
create tablespace index_data datafiled:\orant\database\index_data size 500m;
alter database datafiled:\orant\database\rbs1orcl.ora resize 300m;
alter database datafiled:\orant\dastabase\tmp1orcl.ora resize 300m;

alter rollback segment "rb1" offline;
alter rollback segment "rb2" offline;
alter rollback segment "rb3" offline;
alter rollback segment "rb4" offline;
alter rollback segment "rb5" offline;
alter rollback segment "rb6" offline;
alter rollback segment "rb7" offline;
alter rollback segment "rb8" offline;
alter rollback segment "rb9" offline;
alter rollback segment "rb10" offline;
alter rollback segment "rb11" offline;
alter rollback segment "rb12" offline;
alter rollback segment "rb13" offline;
alter rollback segment "rb14" offline;
alter rollback segment "rb15" offline;
alter rollback segment "rb16" offline;

drop rollback segment "rb1";
drop rollback segment "rb2";
drop rollback segment "rb3";
drop rollback segment "rb4";
drop rollback segment "rb5";
drop rollback segment "rb6";
drop rollback segment "rb7";
drop rollback segment "rb8";
drop rollback segment "rb9";
drop rollback segment "rb10";
drop rollback segment "rb11";
drop rollback segment "rb12";
drop rollback segment "rb13";
drop rollback segment "rb14";
drop rollback segment "rb15";
drop rollback segment "rb16";

create rollback segment "rb1" tablespace "rollback_data" storage (initial 1m next 1m);
create rollback segment "rb2" tablespace "rollback_data" storage (initial 1m next 1m);
create rollback segment "rb3" tablespace "rollback_data" storage (initial 1m next 1m);
create rollback segment "rb4" tablespace "rollback_data" storage (initial 1m next 1m);
create rollback segment "rb5" tablespace "rollback_data" storage (initial 1m next 1m);
create rollback segment "rb6" tablespace "rollback_data" storage (initial 1m next 1m);

alter rollback segment "rb1" online;
alter rollback segment "rb2" online;
alter rollback segment "rb3" online;
alter rollback segment "rb4" online;
alter rollback segment "rb5" online;
alter rollback segment "rb6" online;

alter database add logfile c:\orant\database\log1.ora size 10m;
alter database add logfile c:\orant\database\log2.ora size 10m;
alter database add logfile c:\orant\database\log3.ora size 10m;
alter database add logfile c:\orant\database\log4.ora size 10m;
alter database drop logfile c:\orant\database\log1orcl.ora;
alter database drop logfile c:\orant\database\log2orcl.ora;
alter database drop logfile c:\orant\database\log3orcl.ora;
alter database drop logfile c:\orant\database\log4orcl.ora;

initoral.ora配置：
sga=db_block_buffers*db_block_size+share_pool_size+log_buffers+sort_arer_size+1m
=1/3--1/2
以128m为例：

db_block_buffers=16000（db_block_size=2k）
share_pool_size=30720000(服务器要增大10倍)
log_buffers=655360
sort_area_size=327680(服务器要增大100倍)－－－－－－－－－－添加
global_name=false
rollback_segements=(rb1,rb2)//一般大型数据库要建立6－8个回滚段

添加：
dml_locks=1000
open_cursors=200