--創建表空間

Create? tablespace BRANCH datafile 'D:\tablespace\BRANCH.dbf' size 500M autoextend on maxsize unlimited;

--查詢YS所擁有的表空間

select distinct(tablespace_name) from dba_segments where owner='YS';

--刪除用戶

drop user ys cascade；

--刪除表空間及表空間文件

drop tablespace ysspace including contents and datafiles;

--查詢session

select sid,serial# from v$session where username='ys';

--刪除session

alter system kill session '222,333' immediate;

--解鎖用戶

alter user ys account unlock;

--用戶修改密碼

alter user ys identified by ys;

--創建用戶

CREATE USER test1 PROFILE "DEFAULT"

IDENTIFIED BY test1 DEFAULT TABLESPACE "EBPSPACE"

QUOTA UNLIMITED

ON "EBPSPACE"

ACCOUNT UNLOCK;

--授權

GRANT "CONNECT" TO test1;

Grant read,write on directory db_bak to test1;

GRANT "DBA" TO test1;

--表移動表空間

alter table table_name move tablespace tablespace_name;

--有索引的話必須重建索引

alter index index_name rebuild tablespace tablespace_name;

--查看鎖表

SELECT object_name, machine, s.sid, s.serial#

FROM gv$locked_object l, dba_objects o, gv$session s

WHERE l.object_id = o.object_id

AND l.session_id = s.sid;

總結

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