Oracle 查询表信息获取表字段及字段注释
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2022-06-11 18:17:10
获取表字段:
select *
from user_tab_columns
where table_name='用户表'
order by colum...
获取表字段:
select * from user_tab_columns where table_name='用户表' order by column_name
获取表注释:
select * from user_tab_comments where table_name='用户表' order by table_name
获取字段注释:
select * from user_col_comments where table_name='用户表' order by column_name /* 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='zfxfzb' /* 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_comments /* user_col_comments:table_name,column_name,comments 相应的还有dba_col_comments,all_col_comments,这两个比user_col_comments多了ower列。 */
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