导读 这篇文章主要介绍了oracle查询语句,有助于新手迅速熟悉ORACLE基本语法有助于新手迅速熟悉ORACLE基本语法,需要的朋友可以收藏下
oracle查看用户状态
select username,account_status from dba_users;
查看所有角色
select * from dba_roles;
锁定用户
alter user XXX account lock;
Linux下新建用户
useradd -d /home/XXX -s /usr/bin/ksh -m XXX
passwd XXX
用户创建
useradd -d /home/XXX -g users -s /bin/bash -m XXX -G users 
passwd XXX
删除用户
userdel -r XXX
Linux查看进程
ps -e|grep ***
kill -9 ***(PID)
linux查看版本信息
lsb_release -a
赋予debug权限给用户
grant debug any procedure, debug connect session to prodb;
oracle查询用户
select username,password from dba_users;
oracle删除用户
drop user XXX cascade;
如果遇到报错
oracle cannot drop a user that is currently connected
则执行以下命令
以sysdba登陆
shutdown immediate;
startup restrict;
drop user *** cascade;
alter system disable restricted session;
Oracle监听
lsnrctl start

即可启动

如果出现以sysdba用户连接无法连接到数据库的现象 
检查环境变量ORACLE_HOME,ORACLE_SID

 

sqlplus下的删除符号
ctrl+backspace
sqlplus远程连接
sqlplus 用户名/密码@10.10.10.10:1521/orcl
查询表空间和对应数据文件的关系
select t1.name, t2.name  from v$tablespace t1, v$datafile t2 where  t1.ts# = t2.ts#;
删除表空间
drop tablespace **** including contents and datafiles;
取数据重复插入表
insert into table_A(X,X,X,X) select X,X,X,X from table_B where XXX
table_A和table_B可以是一张表,数据当然要经过更新之后再插入
为用户赋debug权限
GRANT debug any procedure, debug connect session TO USER XXX;
查看不同用户的连接数
select username,count(username) from v$session where username is not null group by username;
查看执行日志
select t."SQL_TEXT",t."SQL_FULLTEXT",t."LAST_ACTIVE_TIME" from v$sqlarea t where t.PARSING_SCHEMA_NAME in ('XXX') and t."SQL_TEXT" like '%XXX%' and t.LAST_ACTIVE_TIME > to_date('201707130623', 'yyyymmddhhmi') order by t.LAST_ACTIVE_TIME;

原文来自:https://blog.csdn.net/hf826/article/details/87920667

本文地址:https://www.linuxprobe.com/oracle.html编辑:王华超,审核员:逄增宝

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