標籤:oracle lob table
注意:由於lob欄位有獨立的lob segment來儲存,故對於帶有lob欄位的表,不能僅僅查詢dba_segments.
以下指令碼來自:
How to Compute the Size of a Table containing Outline CLOBs and BLOBs[Article ID 118531.1]
經過修改:改為了NVL(SUM(S.BYTES),0)
SQL> col "TOTAL TABLE SIZE" format 99999999999999
---注意:以下sql可以直接執行。為了方便複製該指令碼,因此不貼SQL語句的log,而是放上了執行時的SQL語句。SELECT (SELECT NVL(SUM(S.BYTES),0) -- The Table Segment size FROM DBA_SEGMENTS S WHERE S.OWNER = UPPER('LC0019999') AND (S.SEGMENT_NAME = UPPER('ZWPZK'))) + (SELECT NVL(SUM(S.BYTES),0) -- The Lob Segment Size FROM DBA_SEGMENTS S, DBA_LOBS L WHERE S.OWNER = UPPER('LC0019999') AND (L.SEGMENT_NAME = S.SEGMENT_NAME AND L.TABLE_NAME = UPPER('ZWPZK') AND L.OWNER = UPPER('LC0019999'))) + (SELECT NVL(SUM(S.BYTES),0) -- The Lob Index size FROM DBA_SEGMENTS S, DBA_INDEXES I WHERE S.OWNER = UPPER('LC0019999') AND (I.INDEX_NAME = S.SEGMENT_NAME AND I.TABLE_NAME = UPPER('ZWPZK') AND INDEX_TYPE = 'LOB' AND I.OWNER = UPPER('LC0019999'))) "TOTAL TABLE SIZE"FROM DUAL;TOTAL TABLE SIZE---------------- 3571869286SQL> select 3571869286/1024/1024/1024 from dual;35718692864/1024/1024/1024-------------------------- 3.3265625