日期:2014-05-16  浏览次数:20445 次

Oracle 查询用户,表,授权相关语句

--授予权限
grant insert,select,update,delete on table to user;

grant dba,resource to ytpbl;

grant create any sequence to ytpbl;

--撤销
revoke

--Oracle查询用户,表相关信息...
--用户
SELECT * FROM DBA_USERS;
SELECT * FROM ALL_USERS;
SELECT * FROM USER_USERS;
--系统权限
SELECT * FROM DBA_SYS_PRIVS;
SELECT * FROM SESSION_PRIVS;
SELECT * FROM USER_SYS_PRIVS;
--角色
SELECT * FROM USER_ROLE_PRIVS;
SELECT * FROM DBA_ROLES;
--对象权限
select * from user_tab_privs where table_name like '%T_MDM_SMS_MESSAGE_TYPE%';
select * from dba_tab_privs;
select * from all_tab_privs;
--表查询
select * from user_tab_comments;
select * from user_col_comments

--查询索引
select?t.*,i.index_type?from?user_ind_columns?t,user_indexes?i?where?t.index_name?=?i.index_name?and?t.table_name?=?i.table_name?and?t.table_name?=?'要查询的表';

如何在oracle中查询所有用户表的表名、主键名称、索引、外键等
1、查找表的所有索引(包括索引名,类型,构成列): ????select?t.*,i.index_type?from?user_ind_columns?t,user_indexes?i?where?t.index_name?=?i.index_name?and?t.table_name?=?i.table_name?and?t.table_name?=?要查询的表 ????2、查找表的主键(包括名称,构成列): ????select?cu.*?from?user_cons_columns?cu,?user_constraints?au?where?cu.constraint_name?=?au.constraint_name?and?au.constraint_type?=?'P'?and?au.table_name?=?要查询的表 ????3、查找表的唯一性约束(包括名称,构成列): ????select?column_name?from?user_cons_columns?cu,?user_constraints?au?where?cu.constraint_name?=?au.constraint_name?and?au.constraint_type?=?'U'?and?au.table_name?=?要查询的表 ????4、查找表的外键(包括名称,引用表的表名和对应的键名,下面是分成多步查询): ????select?*?from?user_constraints?c?where?c.constraint_type?=?'R'?and?c.table_name?=?要查询的表 ????查询外键约束的列名: ????select?*?from?user_cons_columns?cl?where?cl.constraint_name?=?外键名称 ????查询引用表的键的列名: ????select?*?from?user_cons_columns?cl?where?cl.constraint_name?=?外键引用表的键名 ????5、查询表的所有列及其属性 ????select?t.*,c.COMMENTS?from?user_tab_columns?t,user_col_comments?c?where?t.table_name?=?c.table_name?and?t.column_name?=?c.column_name?and?t.table_name?=?要查询的表?