1、查询用户有哪些表select * from all_tables where owner='ZJY';160 rows selected.2. 查询总数select object_type,count(*) from all_objects where owner='ZJY' group by  object_type;OBJECT_TYPE	      COUNT(*)------------------- ----------SEQUENCE		   280TRIGGER 		   113TABLE			   160INDEX			   477VIEW			     13. 查询表空间select username,default_tablespace,temporary_tablespace from dba_users where username='ZJY';USERNAME		       DEFAULT_TABLESPACE------------------------------ ------------------------------TEMPORARY_TABLESPACE------------------------------NJNYDX_ZJK		       NJNYDX_ZJKNJNYDX_ZJK_TEMPselect distinct tablespace_name from all_tables where owner='NJNYDX_ORA'; TABLESPACE_NAME------------------------------HZKJ_ORAUSERSNJNYDX_ORAWHDX_ORA