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Article #991Re: ������ݿ�ļܹ�������
From: Galaxy��VOLUNTEERS
Date: Tue, 27 May 2008 12:50
Date: Tue, 27 May 2008 12:50
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3151 bytes
ԭ������ij�ű��µ�security ��Ȼ��schema �������BOL��ms-help://MS.SQLCC.v9/MS.SQLSVR.v9.en/udb9/html/ba06f43a-a6a6-48 e3-886a-707fe4226858.htm ����msdn��schemas [SQL Server]���õ��� What is a schema? A schema is a collection of database entities that form a single namespace. For example, to avoid name collisions, no two tables in the same schema can have the same name. Two tables can have the same name only if they are in separate schemas. Benefits of User �C Schema Separation The abstraction of database users from schemas provides several benefits to administrators and developers. Multiple users can own a single schema via membership in roles or Windows groups. This extends the familiar functionality allowing roles and groups to own objects. Dropping database users is greatly simplified. Dropping a database user does not require the renaming of objects contained by that user's schema. Thus it is no longer necessary to revise and test applications that refer explicitly to schema-contained objects after dropping the user that created them. Multiple users can share a single default schema for uniform name resolution. Shared default schemas allow developers to store shared objects in a schema created specifically for a specific application, rather than in the DBO schema. Permissions on schemas and schema-contained objects can be managed with a higher degree of granularity than in earlier releases. Fully-qualified object names now have four parts: server.database.schema.object. �� �� MyLady ( ȥ������) �Ĵ� �����ᵽ: ��: sql server express 2005 ��: ����ܹ���Ӧ���������ڱ�����ֵ�ǰ : ����:dbo.table1 : dbo����һ���ܹ��� : �� �� Dem �Ĵ������ᵽ: �� : : ����������ʲô�汾������ : : �ҵ�developer����security��ֻ��logins/server roles/credentials���������IJ� : : һ���� : : ������ȥ���BOL -- I thought what I'd do was, I'd pretend I was one of those deaf-mutes Or should I? You know what I��d like to be? I mean if I had my goddam choice, I��d just be the catcher in the rye and all. [m[1;36m�� ��Դ:����ˮ˼Դ bbs.sjtu.edu.cn��[FROM: 59.78.51.51][m
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X-Google-Thread: 101948,e0c611310fa7f09d X-Google-Attributes: gid101948,domainid0,public,usenet X-Google-Language: ENGLISH,GB Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!newshub.sdsu.edu!newsgate.cuhk.edu.hk!news.neu.edu.cn!news.shec6.edu.cn!SJTU From: Dem.bbs@bbs.sjtu.edu.cn (Galaxy��VOLUNTEERS) Newsgroups: cn.bbs.comp.database Subject: Re: ������ݿ�ļܹ������� Date: 27 May 2008 12:50:18 GMT Organization: ��ˮ˼Դ Message-ID: <4aEAlK$b0a@bbs.sjtu.edu.cn> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: 8bit X-Filename: database/M.1211892452.A