26。查询有哪些数据库实例在运行
select inst_name from v$active_instances;
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######### 创建数据库----look $ORACLE_HOME/rdbms/admin/buildall.sql #############
create database db01
maxlogfiles 10
maxdatafiles 1024
maxinstances 2
logfile
GROUP 1 (’/u01/oradata/db01/log_01_db01.rdo’) SIZE 15M,
GROUP 2 (’/u01/oradata/db01/log_02_db01.rdo’) SIZE 15M,
GROUP 3 (’/u01/oradata/db01/log_03_db01.rdo’) SIZE 15M,
datafile ’u01/oradata/db01/system_01_db01.dbf’) SIZE 100M,
undo tablespace UNDO
datafile ’/u01/oradata/db01/undo_01_db01.dbf’ SIZE 40M
default temporary tablespace TEMP
tempfile ’/u01/oradata/db01/temp_01_db01.dbf’ SIZE 20M
extent management local uniform size 128k
character set AL32UTE8
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