zoukankan      html  css  js  c++  java
  • Oracle常用查看表结构命令

    转载自:http://blog.520591.com/1301

    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’

    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

  • 相关阅读:
    解决Error: Cannot find module 'node-sass'问题
    SourceTree免登录使用
    git commit之后,想撤销commit
    vue生命周期
    Azure DevOps Azure Repos Git How-to Guides Use SSH key authentication
    FlagsAttribute Class
    serilog Debugging and Diagnostics
    Configuration error of serilog
    Serilog settings appsetting 配置的加载
    Kibana Query Language
  • 原文地址:https://www.cnblogs.com/wangn/p/3160174.html
Copyright © 2011-2022 走看看