Each segment contains rows from only one table defined in the table space.
每个段只能包含该表空间中定义的一个表中的行。
Foreign keys allow you to relate a row in one table with a row in another.
外键可以让您将一张表中的一行与另一张表中的一行相关起来。
Create a database named generalstore, with only one table called promotions.
创建名为generalstore的数据库,其中只有一个名为promotions的表。
The sample back-end database contains only one table with a few simple fields.
样例后端数据库只包含一个表格和几个简单的字段。
You see in Figure 5 that one table is used for each of these types of features.
在图5中可以看到,对于以上每种类型的特性,都有一个表。
The COPY action requires inputting at least one schema (-sn) or one table (-tn or -tf).
COPY操作要求至少输入一个模式(- sn)或一个表(- tn或- tf)。
In other words, you cannot put one table in one database and another in a second database.
换句话说,您不能把一个表放在一个数据库中而另外一个表放到另一个数据库中。
This conversion improves performance when the CHAR and the VARCHAR types are present in one table.
当在同一张表中同时存在CHAR和varchar类型时,这一转换会提高性能。
A buffer pool is associated with a single database, and can be used by more than one table space.
一个缓冲池是与单个数据库相关联的,可以被多个表空间使用。
For this article, I create a new recipe database application called recipe. It needs only one table.
本文将创建一个新的菜谱应用程序,称为Recipe,只需要一个表。
If you had imported more than one table from your database, you could grab fields from different tables here.
如果已从数据库导入一个以上的表,则可从不同的表取得字段。
A database can have more than one table space, where as a table space cannot belong to more than one database.
一个数据库可以具有多于一个的表空间,而一个表空间不能同时属于多个数据库。
In the absence of table joins, de-normalization is often used in HBase to keep related information in one table.
在缺乏表连接时,HBase通常使用去规范化(de - normalization)来将相关信息保存在一个表中。
For educational purposes, let's study triggers in the context of a bank that has a simple setup of just one table.
出于教学的目的,让我们在一个银行相关环境中研究触发器,在该模拟环境中,我们仅仅建立了一张表。
For example, if you back up five table spaces, you can choose to restore just one table space whose media failed .
例如,如果备份5 个表空间,那么可以选择只恢复其介质出现故障的那个表空间。
A JOIN in SQL is simply a way of saying that a field in one table must correspond to another field in a different table.
SQL中的JOIN只是简单说明一个表中的字段必须对应于另一个表中的另一字段的方法。
You estimate a day to write each database access class and unit test it, so 150 tables at one table per day is 150 days.
估计您每天能编写一个数据库访问类并完成其单元测试,因此,150 个表要用 150天的时间。
A table space can be associated with only one buffer pool, but one buffer pool can be used for more than one table space.
一个表空间只能与一个缓冲池相关联,而一个缓冲池可用于多个表空间。
To implement one-to-one and one-to-many relationships you merely have to include the key of one table in the other table.
要实现一对一和一对多的关系,您只需要将一张表的键包括在另一张表中。
The approach generally fits well with a data warehouse system since all data is in one table without the need for table joins.
这种方法通常比较适合数据仓库系统,因为所有数据都在一张表里,不需要做表连接。
Changing tables — even changing column type — can be done with no downtime, as can moving a table from one table space to another.
可以在不停机的情况下修改表(甚至修改列的类型),还可以在表空间之间转移表。
The primary reason for using an ri constraint is to ensure that data integrity is maintained whenever one table references another.
使用一个RI约束的主要原因是,确保当一个表引用另一个表时数据完整性得到维护。
In the build phase, the database server reads one table, and, after it applies any existing filters, it creates a hash table in memory.
在构建阶段,数据库服务器读取一个表,并且在应用所有现有筛选器之后,在内存中创建一个哈希表。
For our first strategy (one table per subclass), Hibernate will read multiple tables each time an object is instantiated and populated.
对于第一个策略(每个子类一个表),Hibernate每次初始化和填充对象时,会读取多个表。
The stakeholders in the business department delivered requirements in form of Microsoft Word tables, with one table for each requirement.
业务部门的出资方提供了MicrosoftWord表格形式的需求,每一张表格提出一项需求。
With this approach you create one table per class, the attributes of which are the OID and the attributes that are specific to that class.
使用这种方法,为每个类创建一张表,它的属性是OID和特定于该类的属性。
Dozens of companies gather in one place so you can walk from one table to the next to learn in a few hours what could otherwise take months.
几十个公司聚在同一个地方,你在每个招聘位上逛一圈,平常需要几个月才能学到的东西在招聘会上几个小时就可以学会了。
A foreign key is one or more data attributes that appear in one table that may be part of, or is coincidental with, the key of another table.
外键是在一张表中出现的一个或多个数据属性;它可以是另一张表的键的一部分,或者干脆碰巧就是另一张表的键。
If you wanted to collect a set of SQL operations that was going to act on more than one table, JDBC does not support batching those statements.
如果想要收集将要在多个表上执行的一系列SQL操作,JDBC不支持对这些语句进行批处理。
If you wanted to collect a set of SQL operations that was going to act on more than one table, JDBC does not support batching those statements.
如果想要收集将要在多个表上执行的一系列SQL操作,JDBC不支持对这些语句进行批处理。
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