selectcount(*)fromdba_free_space where tablespace_name='xx'; 二、问题处理 2.1 Hint 参考 Queries on DBA_FREE_SPACE are Slow (Doc ID271169.1)1) In release 10g, the view dba_free_spaceismodified to access sys.recyclebin$ also. SQL>selecttextfromdba_viewswhereview_name='DBA_FREE_SPACE'; ...
19、select t.tablespace_name,t.file_id,t.block_id,t.bytes,t.blocks from dba_free_space t; //查询表空间的使用情况,bytes表示该表空间空闲表空间大小,blocks标示剩余块数 20、alter database datafile 'E:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\GIAPSYS' resize 100m; //重新为数据文件划分尺寸,在原...
表空间碎片率 idle>selecta.tablespace_name,sqrt(max(a.blocks)/sum(a.blocks))*(100/sqrt(sqrt(count(a.blocks))) FSFIfromdba_free_space a,dba_tablespaces bwherea.tablespace_name=b.tablespace_name and b.contents notin(TEMPORARY,UNDO)groupbya.tablespace_name orderby2; TABLESPACE_NAME FSFI ---...
select sum(bytes)/(1024*1024) as free_space,tablespace_name from 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.***$TS_***AIL A,SYS.***$TS_...
39、1 if no limitDROPPEDVARCHAR2(3)Whether the tablespace has been droppeddba_free_spaceColumnDatatypeNULLDescriptionTABLESPACE_NAMEVARCHAR2(30)Name of the tablespace containing the extentFILE_IDNUMBERFile identifier number of the file containing the extentBLOCK_IDNUMBERStarting block number of the ext...
(select max(bytes) from dba_free_space where tablespace_name = ds.tablespace_name);EOF2 grep -i ^ORA- $LOGFIL >/dev/null if [ $? -eq 0 ]then echo "$0 failed: check $ORACLE_INSTANCE for problems" | /bin/mailx -s "${ORACLE_INSTANCE} : Script failed" $NOTIFY_LIST...
CREATE TABLE example_table ( id NUMBER, name VARCHAR2(50) ) TABLESPACE example_ts STORAGE (FREELISTS 1 FREELIST GROUPS 1); 分配区 分配区是通过搜索数据文件的位图以获取所需数量的相邻空闲块来实现的。分配区的大小可以使用UNIFORM或AUTOALLOCATE存储子句来指定。 示例: 创建表时指定分配区大小: CREATE ...
SQL> SELECT SUM(BYTES)/1024/1024/1024 FROM DBA_FREE_SPACE WHERE TABLESPACE_NAME='APPS_UNDOTS1'; SUM(BYTES)/1024/1024/1024 --- 11.6328125 SQL> select sum(bytes /(1024*1024)) from dba_undo_extents where status='EXPIRED'; SUM(BYTES/(1024*1024)) --- 1.0625...
To determine the segment management of an existing tablespace, query theSEGMENT_SPACE_MANAGEMENT column of the DBA_TABLESPACES or USER_TABLESPACES data dictionary view. Notes: If you specify AUTO segment management, then: (1).If you set extent management to LOCAL UNIFORM, then you must ensure th...
Check Tablespace Free Space in Oracle To check the free space of a tablespace in Oracle, we can query two views (DBA_DATA_FILES & DBA_SEGMENTS). SELECT DFQ.TABLESPACE_NAME "Tablespace Name" ,DFQ.TOTALSPACE "Total Size MB" , (DFQ.TOTALSPACE - DSQ.TOTALUSEDSPACE) "Free Space MB" ,ROUN...