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查詢數據庫表空間容量和數據量
?SELECT a.tablespace_name ,
?total,
?free,
?(total - free),
?total / (1024 * 1024 * 1024) "TS(G)",
?free / (1024 * 1024 * 1024) "TSfree(G)",
?(total - free) / (1024 * 1024 * 1024) "TSuse(G)",
?round((total - free) / total, 4) * 100 "BaiFenBi %"
?FROM (SELECT tablespace_name, SUM(bytes) free
? FROM dba_free_space
?? ? GROUP BY tablespace_name) a,
? ? ? ? ? ? ?(SELECT tablespace_name, SUM(bytes) total
? ?? FROM dba_data_files
? ? ? ?GROUP BY tablespace_name) b
?WHERE a.tablespace_name = b.tablespace_name
ASMCMD查詢存儲使用情況
ls -s
lsdg
du?
導出數據
create or replace directory data as '/home/oracle/imp'
Grant read,write on directory data to test1;
expdp test1/test1@pdborcl directory=data dumpfile=test1.dump logfile=test1.log schemas=test1
impdp test1/test1@pdborcl?directory=data dumpfile=test1.dump logfile=test1.log tables=tab_t1
拼接sql語句
select 'select * from dba_tab_privs where grantee='|| username ||';' from dba_users;
select 'select * from dba_tab_privs where grantee='''||username||''';' from dba_users;
select 'insert into table_name values('''||field_1||''','''||field_2||''');'from table_name where field_n=some_conditon;?
http://www.cppblog.com/fwxjj/archive/2011/10/17/158567.html查詢非系統用戶
select username from dba_users where username not in
('SYS'
,'SYSTEM'
,'OUTLN'
,'FLOWS_FILES'
,'MDSYS'
,'ORDSYS'
,'EXFSYS'
,'DBSNMP'
,'WMSYS'
,'APPQOSSYS'
,'APEX_030200'
,'ORDDATA'
,'CTXSYS'
,'ANONYMOUS'
,'XDB'
,'ORDPLUGINS'
,'SI_INFORMTN_SCHEMA'
,'OLAPSYS'
,'ORACLE_OCM'
,'XS$NULL'
,'MDDATA'
,'DIP'
,'APEX_PUBLIC_USER'
,'SPATIAL_CSW_ADMIN_USR'
,'SPATIAL_WFS_ADMIN_USR');
把某用戶的對象授權給另一用戶及撤銷
select 'grant all on A1.'||table_name||' to B1;' from dba_tables where owner='A1';
select 'revoke all on A1.'||table_name||'? from B1;' from dba_tables where owner='A1';
alter user A1 default_tablespace='B1';
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