,
(SELECT TABLESPACE_NAME,
SUM(BYTES) / 1024 / 1024 / 1024 AS TOTAL
FROM DBA_TEMP_FILES
GROUP...segment_type,tablespace_name,BYTES/1024/1024 size_mb from dba_segments where owner = 'DDCW';
#查询用户默认表空间和TEMP...(bytes) free
FROM DBA_FREE_SPACE
GROUP BY tablespace_name) a,
(SELECT tablespace_name,
Sum(bytes)...total
FROM DBA_DATA_FILES
GROUP BY tablespace_name) b,
(Select owner ,Tablespace_Name,
Sum(bytes...;
#收集统计信息
1.analyze table DDCW.ORA1 compute statistics;
2.EXEC DBMS_STATS.GATHER_TABLE_STATS('DDCW','