All the new XML access guidelines introduced in this article may be nested within these relational join guidelines to specify the inner or outer leg of the join.
本文介绍的所有新的XML访问准则可能会被嵌入到这些关系型连接准则中,从而指定连接的innerleg或outer leg。
It provides the easiest means to join XML data and relational data.
它提供了连接XML数据与关系型数据的最简便途径。
The SQL JOIN statement has long been in the toolkit of database programmers, allowing you to combine the data contained in two or more relational database tables based upon a common attribute.
数据库编程人员对SQLJOIN语句的使用由来已久,通过该语句可以基于相同的属性将两个或更多关系数据库表中的数据组合到一起。
The inventory information comes from a join of two relational nicknames.
库存信息则来自两个关系昵称的连接。
In a relational language, such a query would require a join that might span several data tables and system catalog tables.
而在关系语言中,这种查询需要进行也许跨越了多个数据表和系统目录表的联接。
They're considerably slower than a join on a relational database, but, as a result, it is much harder to create a query that overwhelms the data store.
这要比关系数据库上的连接慢得多,因此很难创建一个让数据存储超负荷的查询。
In a relational system, it's more likely that a committee identifier would be an attribute of the member (so that you could join or select on a committee name).
在关系型系统中,更常见的是Committee标识作为成员的属性(以便可以在委员会名称上连接或选择)。
If I were to use a relational table structure to design this relationship, I'd need at least three tables: the third being a join table linking a many-to-many relationship.
如果我要使用一个关系表结构来设计这个关系,至少需要3个表:第3表将是链接一个“多对多”关系的联接表。
Relational guidelines such as join, MSJOIN, NLJOIN, and HSJOIN can be used to specify the join order and the join type.
关系准则,比如join、MSJOIN、NLJOIN和HSJOIN都可以用来指定连接顺序和连接类型。
Listing 7 shows how to use a join with both relational and XML predicates and return, for each Purchase Order, the POID, and customer name.
清单7显示了如何使用关系和xml谓词合并J SONx,并为每个PurchaseOrder返回POID和客户名。
As join operation to relational database, structural join order selection is at the heart of query optimization in an XML database.
和关系数据库中的连接运算一样,结构连接顺序的选择是XML数据库查询优化的核心。
Join dependency in relational data theory is not seldom seen during database systems designing.
本文阐明关系数据规范理论中的连接依赖在设计数据库系统时并不少见。
This paper gives a dissolution algorithm on relational data model system which has a lossless join and remains function dependency as well.
给出了关系数据模式分解中,既有无损连接性又保持函数依赖的分解算法,并用该算法指导应用软件的开发工作。
Another operation used in conjunction with relational database is the JOIN operation. It is used to combine different relations into one relation.
另一个联同关系数据库的操作时联接操作,联接操作被用来合并不同的关系为一个关系。
Another operation used in conjunction with relational database is the JOIN operation. It is used to combine different relations into one relation.
另一个联同关系数据库的操作时联接操作,联接操作被用来合并不同的关系为一个关系。
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