oracle查看数据文件是否有数据 – 数据库 – 前端|

查看那些库的话必须用dba权限登录。登陆后可以通过下面的方法来查看。一、查看有哪些库，你的库理解不准确，应该准确来说是表空间，可以通过下面的命令来实现12345678910111213 SELECT Total.name “Tablespace Name”,Free_space, (Total_space-Free_space) Used_space, total_spaceFROM(select tablespace_name, sum(bytes/1024/1024) Free_Spacefrom sys.dba_free_spacegroup by tablespace_name) Free,(select b.name, sum(bytes/1024/1024) TOTAL_SPACEfrom sys.v_$datafile a, sys.v_$tablespace Bwhere a.ts# = b.ts#group by b.name) TotalWHERE Free.Tablespace_name = Total.name二、查看有哪些表。1 select table_name from dba_tables where owner=’A’;