Oracle 表空间常用sql

--查询表空间使用情况 select a.tablespace_name, a.bytes / 1024 / 1024 "sum MB", (a.bytes - b.bytes) / 1024 / 1024 "used MB", b.bytes / 1024 / 1024 "free MB", round(((a.bytes - b.bytes) / a.bytes) * 100, 2) "used%" from (select tablespace_name, sum(bytes) bytes from dba_data_files group by tablespace_name) a, (select tablespace_name, sum(bytes) bytes, max(bytes) largest from dba_free_space group by tablespace_name) b where a.tablespace_name = b.tablespace_name order by ((a.bytes - b.bytes) / a.bytes) desc; --查看表空间的名字及文件在哪 select tablespace_name, file_id, file_name, round(bytes / (1024 * 1024), 0) total_space from dba_data_files order by tablespace_name; --解决方案 alter tablespace USERS add datafile '/u01/oracle/oradata/sonar/users02.dbf' size 32700m