select tt1.owner,tt1.table_name,tt1.comments,tt1.last_analyzed,tt1.num_rows,tt2.colcntfrom (select t1.owner,t1.table_name,c1.comments,t1.last_analyzed,t1.num_rowsfrom all_tables t1, ALL_TAB_COMMENTS c1where t1.owner = c1.ownerand t1.table_name = c1.table_name) tt1,(select t5.OWNER, t5.TABLE_NAME, count(1) as colcntfrom dba_tab_columns t5where t5.OWNER not in('SYS', 'SYSTEM', 'OUTLN', 'DIP', 'ORACLE_OCM', 'DBSNMP','APPQOSSYS', 'WMSYS', 'EXFSYS', 'CTXSYS', 'XDB', 'ANONYMOUS','ORDSYS', 'ORDDATA', 'ORDPLUGINS', 'SI_INFORMTN_SCHEMA','MDSYS', 'OLAPSYS', 'MDDATA', 'SPATIAL_WFS_ADMIN_USR','SPATIAL_CSW_ADMIN_USR', 'SYSMAN', 'MGMT_VIEW', 'FLOWS_FILES','APEX_PUBLIC_USER', 'APEX_030200', 'OWBSYS', 'OWBSYS_AUDIT','SCOTT', 'HR', 'OE', 'IX', 'SH', 'PM', 'BI', 'XS$NULL')group by t5.OWNER, t5.TABLE_NAME) tt2where tt1.owner = tt2.ownerand tt1.table_name = tt2.table_nameorder by tt1.owner, tt1.table_name

select ttt1.owner,ttt1.table_name,ttt1.column_name,ttt1.DATA_TYPE,ttt1.comments,(case ttt2.constraint_typewhen 'P' THEN'Y'ELSE'N'END) "是否主键",(case ttt3.constraint_typewhen 'R' THEN'Y'ELSE'N'END) "是否外键",(case ttt4.constraint_typewhen 'U' THEN'Y'ELSE'N'END) "是否唯一值",ttt1.NULLABLEfrom (select tt1.owner,tt1.table_name,tt1.column_name,tt1.DATA_TYPE,tt1.COLUMN_ID,tt2.comments,tt1.NULLABLEfrom (select t2.owner,t2.table_name,t2.column_name,t2.DATA_TYPE,t2.COLUMN_ID,t2.NULLABLEfrom all_tab_columns t2where t2.owner not in('SYS', 'SYSTEM', 'OUTLN', 'DIP', 'ORACLE_OCM','DBSNMP', 'APPQOSSYS', 'WMSYS', 'EXFSYS', 'CTXSYS','XDB', 'ANONYMOUS', 'ORDSYS', 'ORDDATA', 'ORDPLUGINS','SI_INFORMTN_SCHEMA', 'MDSYS', 'OLAPSYS', 'MDDATA','SPATIAL_WFS_ADMIN_USR', 'SPATIAL_CSW_ADMIN_USR','SYSMAN', 'MGMT_VIEW', 'FLOWS_FILES','APEX_PUBLIC_USER', 'APEX_030200', 'OWBSYS','OWBSYS_AUDIT', 'SCOTT', 'HR', 'OE', 'IX', 'SH', 'PM', 'BI','XS$NULL')) tt1,ALL_COL_COMMENTS tt2where tt1.owner = tt2.ownerand tt1.table_name = tt2.table_nameand tt1.column_name = tt2.column_name) ttt1left join(select col.owner, col.table_name, col.column_name, con.constraint_typefrom all_constraints con, all_cons_columns colwhere con.constraint_name = col.constraint_nameand con.owner = col.ownerand con.table_name = col.table_nameand con.constraint_type = 'P') ttt2 on ttt1.owner = ttt2.ownerand ttt1.table_name =ttt2.table_nameand ttt1.column_name =ttt2.column_nameleft join(select col.owner, col.table_name, col.column_name, con.constraint_typefrom all_constraints con, all_cons_columns colwhere con.constraint_name = col.constraint_nameand con.owner = col.ownerand con.table_name = col.table_nameand con.constraint_type = 'R') ttt3 on ttt1.owner = ttt3.ownerand ttt1.table_name =ttt3.table_nameand ttt1.column_name =ttt3.column_nameleft join(select col.owner, col.table_name, col.column_name, con.constraint_typefrom all_constraints con, all_cons_columns colwhere con.constraint_name = col.constraint_nameand con.owner = col.ownerand con.table_name = col.table_nameand con.constraint_type = 'U') ttt4 on ttt1.owner = ttt4.ownerand ttt1.table_name =ttt4.table_nameand ttt1.column_name =ttt4.column_nameorder by ttt1.owner, ttt1.table_name, ttt1.COLUMN_ID