用户A包含表TBL,如果用户A将TBL的访问权限给用户B(grant select
any table to B),则在用户B中要想引用用户A的表,不使用同义词,则需要用select * from A.TBL;
之所以这里需要使用A.TBL的格式,是因为TBL表属于用户A的schema,做个比喻,schema(译文方案)好比一个容器,存放的是一系列数据库对象,从官方文档的介绍说明:
...
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其他好文 时间:
2014-10-16 14:30:42
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221
The implementation ofIDataReader.GetSchemaTable()is up to the provider - so it will vary. You can write your own providers and do it any way you want....
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其他好文 时间:
2014-10-16 09:57:02
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195
A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below).
The robot can only move either down or right at any point in time. The robot is trying to reach the ...
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其他好文 时间:
2014-10-15 16:02:10
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190
问题: A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null. Return a deep ...
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其他好文 时间:
2014-10-15 15:40:50
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262
1. Attached Property bound to task state. Any change will dynamically set data template.2. Visual State ManagerADataTemplateSelectordoes not respond t...
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其他好文 时间:
2014-10-15 11:29:00
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260
A robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram below).The robot can only move either down or right at any point ...
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其他好文 时间:
2014-10-15 01:41:29
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266
代码效果为:启动页分为4页,最后一页有一个按钮,点击跳转到主页面。上代码:- (void)viewDidLoad{ [super viewDidLoad]; // Do any additional setup after loading the view. UIScrol...
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其他好文 时间:
2014-10-14 14:25:58
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223
Given a string, write a routine that converts the string to a long, without using the built in functions that would do this. Describe what (if any) li...
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其他好文 时间:
2014-10-14 13:01:28
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201
Problem:Implement regular expression matching with support for '.' and '*'. '.' Matches any single character. '*' Matches zero or more of the precedin...
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其他好文 时间:
2014-10-14 02:10:07
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221
BACKGROUND, FEATURES
In a computer system having more than one memory storage facility, a special data integrity challenge can occur. Any computer sys...
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其他好文 时间:
2014-10-13 23:44:17
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297