oracle查看表结构、字段名、注释SQL语句 | 您所在的位置:网站首页 › 怎么查看表的sql语句 › oracle查看表结构、字段名、注释SQL语句 |
Oracle常用查看表结构命令 获取表: select table_name from user_tables; //当前用户的表 select table_name from all_tables; //所有用户的表 select table_name from dba_tables; //包括系统表 select table_name from dba_tables where owner='用户名'表结构: 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 获取表字段: select * from user_tab_columns where Table_Name='用户表'; select * from all_tab_columns where Table_Name='用户表'; select * from dba_tab_columns where Table_Name='用户表';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 获取表注释: select * from user_tab_comments;user_tab_comments: table_name,table_type,comments –相应的还有dba_tab_comments,all_tab_comments,这两个比user_tab_comments 多了ower列。 获取字段注释: select * from user_col_commentsuser_col_comments:table_name,column_name,comments |
CopyRight 2018-2019 实验室设备网 版权所有 |