oracle12c卸载详细步骤(oracle12c客户端卸载步骤)

1.用SQL*PLUS停止数据库

[oracle@mydata ~]$ sqlplus / as sysdba

SQL> shutdown immediate

SQL> exit

oracle12c卸载详细步骤(oracle12c客户端卸载步骤)

2.停止Listener

[oracle@mydata ~]$ lsnrctl stop

oracle12c卸载详细步骤(oracle12c客户端卸载步骤)

3.删除安装目录

rm -rf /u01/app/oracle/*

rm -rf /u01/app/grid/*

rm -rf /u01/app/11.2.0/grid/*

rm -rf /u01/app/oraInventory/*

4.删除/usr/bin下的文件

rm -f /usr/local/bin/dbhome

rm -f /usr/local/bin/oraenv

rm -f /usr/local/bin/coraenv

5.删除/etc/oratab

rm -f /etc/oratab

6.删除/etc/oraInst.loc

rm -f /etc/oraInst.loc

7.删除/etc/oracle/ocr.loc

rm -rf /etc/oracle/ocr.loc

8.删除/var/tmp/.oracle集群注册信息

rm -f /var/tmp/.oracle

9.删除oracle用户(重新安装,可以不删除)

[root@mydata ~]# userdel -r oracle

[root@mydata ~]# userdel -r grid

10.删除用户组(重新安装,可以不删除)

 [root@mydata ~]# groupdel oinstall

 [root@mydata ~]# groupdel dba

11.如果采用裸设备安装的数据库,需要格式化ASM磁盘组

dd if=/dev/zero of=/dev/mapper/iscsi-data bs=1024 count=2056

dd if=/dev/zero of=/dev/mapper/iscsi-fra bs=1024 count=2056

dd if=/dev/zero of=/dev/mapper/iscsi-ocr1 bs=1024 count=2056

dd if=/dev/zero of=/dev/mapper/iscsi-ocr2 bs=1024 count=2056

dd if=/dev/zero of=/dev/mapper/iscsi-ocr3 bs=1024 count=2056

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