標籤:
-1、查看錶空間的名稱及大小SELECT t.tablespace_name, round(SUM(bytes / (1024 * 1024)), 0) ts_sizeFROM dba_tablespaces t, dba_data_files dWHERE t.tablespace_name = d.tablespace_nameGROUP BY t.tablespace_name;--2、查看錶空間物理檔案的名稱及大小SELECT tablespace_name,file_id,file_name,round(bytes / (1024 * 1024), 0) total_spaceFROM dba_data_filesORDER BY tablespace_name;--3、查看復原段名稱及大小SELECT segment_name,tablespace_name,r.status,(initial_extent / 1024) initialextent,(next_extent / 1024) nextextent,max_extents,v.curext curextentFROM dba_rollback_segs r, v$rollstat vWHERE r.segment_id = v.usn(+)ORDER BY segment_name;--4、查看控制檔案SELECT NAME FROM v$controlfile;--5、查看記錄檔SELECT MEMBER FROM v$logfile;--6、查看錶空間的使用方式SELECT SUM(bytes) / (1024 * 1024) AS free_space, tablespace_nameFROM dba_free_spaceGROUP BY tablespace_name;SELECT a.tablespace_name,a.bytes total,b.bytes used,c.bytes free,(b.bytes * 100) / a.bytes "% USED ",(c.bytes * 100) / a.bytes "% FREE "FROM sys.sm$ts_avail a, sys.sm$ts_used b, sys.sm$ts_free cWHERE a.tablespace_name = b.tablespace_nameAND a.tablespace_name = c.tablespace_name;--7、查看資料庫庫對象SELECT owner, object_type, status, COUNT(*) count#FROM all_objectsGROUP BY owner, object_type, status;--8、查看資料庫的版本 SELECT versionFROM product_component_versionWHERE substr(product, 1, 6) = ‘Oracle‘;--9、查看資料庫的建立日期和歸檔方式SELECT created, log_mode, log_mode FROM v$database;
查詢資料表空間及其使用率
--1G=1024MB--1M=1024KB--1K=1024Bytes--1M=11048576Bytes--1G=1024*11048576Bytes=11313741824BytesSELECT a.tablespace_name "資料表空間名",total "資料表空間大小",free "資料表空間剩餘大小",(total - free) "資料表空間使用大小",total / (1024 * 1024 * 1024) "資料表空間大小(G)",free / (1024 * 1024 * 1024) "資料表空間剩餘大小(G)",(total - free) / (1024 * 1024 * 1024) "資料表空間使用大小(G)",round((total - free) / total, 4) * 100 "使用率 %"FROM (SELECT tablespace_name, SUM(bytes) freeFROM dba_free_spaceGROUP BY tablespace_name) a,(SELECT tablespace_name, SUM(bytes) totalFROM dba_data_filesGROUP BY tablespace_name) bWHERE a.tablespace_name = b.tablespace_name
Oracle 查看錶空間的大小及使用方式sql語句