Oracle中查看所有表和字段 |
發(fā)布時間: 2012/9/13 17:22:06 |
獲取表: select table_name from user_tables; //當前用戶的表 -
select table_name from dba_tables; //包括系統(tǒng)表 select table_name from dba_tables where owner='用戶名'
user_tables: table_name,tablespace_name,last_analyzed等 dba_tables: ower,table_name,tablespace_name,last_analyzed等 all_tables: ower,table_name,tablespace_name,last_analyzed等 all_objects: ower,object_name,subobject_name,object_id,created,last_ddl_time,timestamp,status等
獲取表字段: select * from user_tab_columns where Table_Name='用戶表'; select * from all_tab_columns where Table_Name='用戶表'; select * from dba_tab_columns where Table_Name='用戶表'; user_tab_columns: table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id等 all_tab_columns : ower,table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id等 dba_tab_columns: ower,table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id等 獲取表注釋: select * from user_tab_comments user_tab_comments:table_name,table_type,comments 相應的還有dba_tab_comments,all_tab_comments,這兩個比user_tab_comments多了ower列。 獲取字段注釋: select * from user_col_comments user_col_comments:table_name,column_name,comments 相應的還有dba_col_comments,all_col_comments,這兩個比user_col_comments多了ower列。
本文出自:億恩科技【1tcdy.com】 |