Oracle常用系统表查询

-- get all dictionary for oracle db select * from dict; --select * from dictionary; -- get all columns for dictionarys select * from dict_columns; -- get the default name-space for current user select username,default_tablespace from user_users; -- get roles for current user select * from user_role_privs; -- get system privilage and table privilage for current user select * from user_sys_privs; select * from user_tab_privs; -- get all tables for current user select * from user_tables; -- get all tables whoes name includes log select object_name,object_id from user_objects where instr(object_name,'LOG')>0 -- get the create date for a table select object_name,created from user_objects where object_name=upper('&table_name'); -- get the size for the given table select sum(bytes)/(1024*1024) as "size(M)" from user_segments where segment_name=upper('&table_name'); -- get tables in ram select table_name,cache from user_tables where instr(cache,'Y')>0 -- get index couter and types select index_name,index_type,table_name from user_indexes order by table_name -- get the columns indexed by the given index select * from user_ind_columns where index_name=upper('&index_name') -- get the size for the given index select sum(bytes)/(1024*1024) as "size(M)" from user_segments where segment_name=upper('&index_name') -- get the last number for all sequence select * from user_sequences -- get all views select view_name from user_views -- get the sql to defined the given view select view_name,text_length from user_views; set long 417; select text from user_views where view_name=upper('&view_name'); -- get all synonyms select * from user_synonyms -- get constraints for given table select constraint_name, constraint_type,search_condition, r_constraint_name from user_constraints where table_name = upper('&table_name'); select c.constraint_name,c.constraint_type,cc.column_name from user_constraints c,user_cons_columns cc where c.owner = upper('&table_owner') and c.table_name = upper('&table_name') and c.owner = cc.owner and c.constraint_name = cc.constraint_name order by cc.position; -- check status for functions and procedures select object_name,status from user_objects where object_type='FUNCTION'; select object_name,status from user_objects where object_type='PROCEDURE'; -- get source for functions and procedures select text from all_source where owner=user and name=upper('&plsql_name');