SQL SERVER 查看用户权限
--用户与角色关系
select a.uid as uid,a.status as uStatus,a.name as uName,
b.uid as rId,b.status as rStatus,b.name as rName
from sysusers a inner join sysusers b on a.gid = b.uid
where a.issqlrole = 0 and a.isapprole = 0 and a.hasdbaccess = 1 and (b.issqlrole = 1 or b.isapprole = 1)
--用户在数据库中的授权信息
select b.id,b.name as tName,b.type,a.uid,c.name as uName,a.action,a.protecttype,a.columns
from sysprotects a inner join sysobjects b on a.id = b.id
inner join sysusers c on a.uid = c.uid
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我们通常所说的DML、DDL、DCL语句都是sql语句，它们执行完后，都可以保存在一个被称为sql buffer的内存区域中，并且只能保存一条最近执行的sql语句，我们可以对保存在sql buffer中的sql 语句进行修改，然后再次执行。
除 ......
-- MySQL dump 10.10
--
-- Host: localhost Database: test
-- ------------------------------------------------------
-- Server version 5.0.22-community-nt
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*! ......
比如在Northwind数据库中
有一个查询为
SELECT c.CustomerId, CompanyName
from Customers c
WHERE EXISTS(
SELECT OrderID from ......
1. 查看 SQL 2005 用户所属数据库角色
use yourdb
go
select DbRole = g.name, MemberName = u.name, MemberSID = u.sid
from sys.database_principals u, sys.database_principals g, sys.database_role_members m
where g.principal_id = m.role_principal_id
and u.principal_id = m.member_principal_id
......
