SELECT SUBSTR(MAX(A.TABLESPACE_NAME),1,16) "Tablespace", --TO_CHAR(A.FILE_ID, '9999') "File ID", SUBSTR(MAX(A.FILE_NAME),1,43) "Data file", SUBSTR(MAX(A.STATUS),1,10) "Status", MAX(A.BYTES)/1024/1024 "TOTAL SIZE(Mb)" , (MAX(A.BYTES)-NVL(SUM(B.BYTES),0))/1024/1024 "USED SIZE(Mb)", NVL(SUM(B.BYTES),0)/1024/1024 "FREE SIZE(Mb)", --MAX(A.BLOCKS)-NVL(SUM(B.BLOCKS),0) "USED BLOCKS", TO_CHAR((MAX(A.BYT..