为列定义的所有默认约束必须相同。
Any default constraints defined for columns must be the same.
所需的表列的列定义。
最后，所有列定义都由逗号分隔，并括在括号中。
Finally, all column definitions are separated by commas, and embedded in brackets.
请您列定义的顺序和SQL查询中的数据字段相符。
Make sure the column definition order matches the data fields of the SQL query.
下表提供了“标记”视图中可用的列定义。
The following table provides the definitions of columns that are available in the Marks view.
您可能理解列定义的含义，但是可能不理解约束的意义。
You probably understand what is meant by a column definition, but you might not understand the idea of a constraint.
此逻辑基于表的架构(列定义和主键信息)。
This logic is based on the schema of the table (the column definitions and primary key information).
连接器将根据目标表和列定义在运行时生成查询s QL。
The connector generates the query SQL at runtime based on the target table and the column definitions.
列定义—列定义是您定义要在报告中使用的期间和现状的地方。
Column definition - the column definition is where you will define the periods and actualities to be used in the report.
Ext中的Grid需要具备两个基础元素：列定义和数据存储。
A Grid in Ext needs two basic things: column definitions and a data store.
指导者可以使用如图13 所示的表名和列定义生成SQL。
The connector can generate the SQL using the table name and column definitions as shown in Figure 13.
对于电子商务的例子，下面的图2描述了将被查询的现有表的列定义。
For the e-commerce example, Figure 2 below describes the column definitions of the existing tables that will be queried.
除了更改分区键，这个过程能够将表移到不同的表空间、更改列定义等。
In addition to the partitioning key change, this procedure can move the table to a different table space, change column definitions, and more.
提供将主键的列定义复制到另一个表以为关系创建匹配列的步骤。
Provides steps for copying a Primary Key's column definition to another table in order to create matching columns for a relationship.
如果存在的话，首先放弃这些表，以便您可以用所需的正确的列定义创建新表。
You first drop the tables, if they exist, so that you can cleanly create new tables with the exact column definitions you need.
这是一种XML内部的暂时表示，不支持列定义或该数据类型的应用程序返回。
This is an XML internal and transient representation that does not allow for column definition or for the return of this data type to the application.
指定XQuery表达式和列定义，它们将驱动底层的XMLTable函数。
Specify the XQuery expression and column definition that will drive the underlying XMLTable function.
每个阶段都提供自定义属性(例如，输入表名、列定义、转换公式，等等)。
Each stage provides customizable properties (for example, input table name, column definition, transformation formula, and so on).
关于列定义、索引以及昵称统计信息的信息存储在DB 2联邦数据库系统编目中。
Information about the column definitions, index, and statistics for a nickname is stored in the DB2 federated database system catalogs.
应该保留id、holdingtype、symbol和qty的列定义，见图7。
The column definitions that should remain are id, holdingtype, symbol and qty, as shown in Figure 7.
记得clients对客户ID列定义了一个主键，因此在尝试导入相同行时将失败。
Recall that clients were defined with a primary key on the client ID column, so attempting to import duplicate rows will fail.
完成以下步骤，指定将驱动底层XMLTable函数的XQuery表达式和列定义。
Complete the following steps to specify the XQuery expression and column definition that will drive the underlying XMLTable function.
对于关系昵称，包装器确认数据源对象是否存在，如果定义了昵称，还将获取列定义和索引信息。
For relational nicknames, the wrapper validates the existence of the data source objects and retrieves the column definitions and index information, if any, when the nickname is defined.
编辑XMLRelationalmapping操作符，删除目标表不需要的所有列定义。
Edit the XML Relational Mapping operator, deleting all column definitions except those required by the target table.
唯一标识符列定义了系统生成唯一标识符所需的“TTTTMMMCCSSSSS”的子集。
The unique identifier column defines the subset of "TTTTMMMCCSSSSS" that is required in order to generate a unique identifier for the system.
要在查询元素表中将行标记为列定义，行的Operator选择对升序必须为asc，对降序必须为DESC。
To mark a row within the query elements table as a column definition, the Operator choice for the row must be either asc for ascending or desc for descending.
中间的列显示在分析SQL性能监视器时观察到的值，最后一列定义输出的监视器文件中QVC43列显示的值。
The center column shows the values you would observe when analyzing the SQL Performance monitor and the last column defines the values which appear within the QVC43 column of the output monitor file.
在五个不同的阶段，biProductUnitSoldReport.xml 文件中有五个SQL查询以及列定义集。
There are five sets of SQL queries and column definitions for five different durations in biProductUnitSoldReport.xml.
将本地列定义为DATE类型比较方便，因为这样可以允许涉及DATE文字但是不需要覆盖函数(对性能有影响)的谓词。
Defining the local column as DATE is convenient because it allows predicates that involve DATE literals, but does not require casting functions (which tend to impact performance).
将本地列定义为DATE类型比较方便，因为这样可以允许涉及DATE文字但是不需要覆盖函数(对性能有影响)的谓词。
Defining the local column as DATE is convenient because it allows predicates that involve DATE literals, but does not require casting functions (which tend to impact performance).
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