Home > Database > Mysql Tutorial > body text

Oracle中查看所有表和字段以及表注释.字段注释

WBOY
Release: 2016-06-07 16:49:52
Original
1750 people have browsed it

Oracle中查看所有表和字段以及表注释.字段注释 获取表: select table_name from user_tables; //当前用户拥有的表 select

Oracle中查看所有表和字段以及表注释.字段注释

获取表:

select table_name from user_tables; //当前用户拥有的表     
 
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'
 
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。

--------------------------------------------------------------------------------

Linux-6-64下安装Oracle 12C笔记

在CentOS 6.4下安装Oracle 11gR2(x64)

Oracle 11gR2 在VMWare虚拟机中安装步骤

Debian 下 安装 Oracle 11g XE R2

--------------------------------------------------------------------------------

本文永久更新链接地址:

linux

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template