1. 용량단위(MB): 테이블스페이스 전체의 테이블스페이스 결과물이 나옴.
SELECT A.TABLESPACE_NAME,
ROUND(SUM(A.BYTES) / (1024 * 1024)) || 'M' "전체",
ROUND(SUM(B.FREES) / (1024 * 1024)) || 'M' "여유",
ROUND( (SUM(A.BYTES) - SUM(B.FREES) ) / (1024 * 1024) ) || 'M' "사용"
FROM
(SELECT FILE_ID, TABLESPACE_NAME, SUM(BYTES) BYTES
FROM DBA_DATA_FILES
GROUP BY FILE_ID, TABLESPACE_NAME) A,
(SELECT TABLESPACE_NAME, FILE_ID, SUM(BYTES) FREES
FROM DBA_FREE_SPACE
GROUP BY TABLESPACE_NAME, FILE_ID) B
WHERE A.TABLESPACE_NAME = B.TABLESPACE_NAME AND
A.FILE_ID = B.FILE_ID
GROUP BY A.TABLESPACE_NAME;
2. 용량단위(Byte) : 테이블스페이스의 각 DataFile별로 테이블스페이스 결과물이 나옴.
SELECT A.TABLESPACE_NAME "테이블스페이스명",
(A.BYTES - B.FREE) "사용공간",
B.FREE "여유 공간",
A.BYTES "총크기",
TO_CHAR( (B.FREE / A.BYTES * 100) , '999.99')||'%' "여유공간"
FROM
(
SELECT FILE_ID,
TABLESPACE_NAME,
SUBSTR(FILE_NAME,1,200) FILE_NM,
SUM(BYTES) BYTES
FROM DBA_DATA_FILES
GROUP BY FILE_ID,TABLESPACE_NAME,SUBSTR(FILE_NAME,1,200)
) A,
(
SELECT TABLESPACE_NAME,
FILE_ID,
SUM(NVL(BYTES,0)) FREE
FROM DBA_FREE_SPACE
GROUP BY TABLESPACE_NAME,FILE_ID
) B
WHERE A.TABLESPACE_NAME=B.TABLESPACE_NAME
AND A.FILE_ID = B.FILE_ID;