Edit Columns dialog box to change column types.
“编辑列”对话框来更改列类型。
The example in Listing 2 shows how you would use the FORMAT options for two different column types.
清单2中的示例显示如何为两个不同的列类型使用FORMAT选项。
Shows how to perform table-row filtering using Boolean, foreign-key, and enumeration column types.
演示如何使用布尔值、外键和枚举列类型来执行表行筛选。
While all rows in a result set share the same number of columns and column types, different result sets can have different column layouts.
一个结果集中的所有行具有相同的列数量和列类型，而不同的结果集可以具有不同的列布局。
You also have to specify column types in a relational system, so you might find yourself constrained by, say, the length of the address field.
因为您可能发现自己受制于地址字段的长度，所以您还必须在关系系统中指定列类型。
The variety of column types in the table is intentional to show you the ability of SQuirreL to distinguish between the different column types.
而该表中的各种列类型是为了向您展示SQuirreL可区分不同列类型的能力。
For example, you can remove or hide columns you are not interested in displaying, you can rearrange the columns, or you can modify the column types.
例如，您可以移除或隐藏不想显示的资料行、重新整理资料行，或修改资料行型别。
If you want the values in the report to be formatted according to column types, then the column option format can be defined on the columns to specify the report format for the column values.
如果您想要根据列的类型格式化报表中的值，可以在列上定义列选项FORMAT来指定列值的报表格式。
The previous installment in this column identified some common input data types and how to check them.
本专栏的前一期文章指出了一些常见的输入数据类型以及检查它们的方法。
In Part 1, you saw how scaffolding used the metadata provided by Active Record — types, column names, and relationships — to build a sophisticated user interface.
在第1部分中，看到了搭建如何使用活动记录提供的元数据——类型、列名称和关系——来构建复杂的用户界面。
The listing first specifies the name and database type of the column, and then states for what event types the column is filled.
清单中首先指定了该列的名称和数据库类型，然后声明了该列中应该填充什么样的事件类型。
Technical metadata includes host server, database type, database schemas, table name, column names, and data types, all of which are described in technical detail.
技术元数据包括主机服务器、数据库类型、数据库模式、表名、列名和数据类型，这些都是在技术数据中描述的。
See the Support Authority column on Features and tools for practical troubleshooting for further details about these types of artifacts.
有关这些类型的构件的进一步详细信息，请参阅“权威支持”专栏用于实际故障诊断的功能和工具。
However, since DB2 does not force you to associate an XML schema with an XML column, the data types for elements or attributes are not predetermined.
不过，由于DB 2不强制要求将XML模式与xml列相关联，所以元素或属性的数据类型不是预先确定的。
Finally, you can index into the columns by column number and cast the results directly (for some types).
最后，可以根据列编号为这些列建立索引，并直接强制转换结果(对于某些类型)。
Column data types are pre-filled based on the DB2 platform for the procedure for easy selection.
列数据类型是根据过程的DB 2平台预先填写的，以便于选择。
Constraints come in two types: table-level constraints and column constraints.
约束有两种类型：表级约束和列约束。
Second, DB2 9.7 has extended its support for changing column data types on existing tables.
其次，DB2 9.7扩展了它修改已有表中的列数据类型的支持。
With the XML data type, you can store an XML document in a database table column similar to the other data types.
借助XML数据类型，您可以在类似于其他数据类型的数据库表列中存储XML文档。
In cases where the platform allows altering the column data type, the list of data types available is pre-filled with the valid compatible data types for that platform, making the type selection easy.
在平台允许更改列数据类型的情况下，可用的数据类型预先填写有该平台的有效兼容数据类型，使类型选择更为容易。
In cases where the data type of a column can be altered, the list of compatible data types is automatically listed in the data type drop down for each column.
如果列的数据类型可以更改，则兼容数据类型的列表在每个列的数据类型下拉列表中自动列出。
Then, use a simple system of symbols to mark off 4 different information types in the column space left in the margin.
然后，在你的第一列空栏中使用不同4符号为4不同的信息类型做标记。
CARPOOL table contains columns based on both SQL data types and one column based on the new DB2 XML data type.
carpool表既包含基于SQL数据类型的列，又包含一个基于新的DB 2XML数据类型的列。
Since DB2 does not force you to associate a single XML schema with all documents in an XML column, the data types for specific elements and attributes are not known a-priori.
由于DB2不强制要求将单个XML模式与 XML列中的所有文档相关联，所以特定元素和属性的数据类型事先是未知的。
This column is followed by two address types: one for shipping and the other for billing.
该列后跟两个地址：一个用于送货，一个用于付款。
For this column, I'm going to show the same types of results but with a few changes.
在这一期中，我将展示同样类型的结果，但稍有变化。
The ALTER COLUMN SET DATA type option on the ALTER TABLE statement has been extended to support all compatible types.
ALTERtable语句中的ALTERCOLUMNSETDATATYPE选项进行了扩展，可以支持所有兼容的类型。
With support for chart types such as line, column, pie, and stacked bar, Ext JS charts can find a place in most applications.
有了对如折线图、柱状图、饼图、堆叠条形图的图表类型的支持，ExtJS 图表在很多应用程序中有了用武之地。
The maximum length for a VARCHAR column may seem sufficiently large, but Derby provides larger character data types, which will be discussed in a future article.
VARCHAR列的最大长度看起来可能足够大了，但是Derby 还提供了更大的字符数据类型，这个类型将在未来的文章中讨论。
The NOT NULL attribute of column Credit_Line in table ACCOUNT has to be dropped because some other account types have been added that do not have a credit line.
ACCOUNT表中的 Credit_Line列的NOTNULL属性必须删除，这是因为添加了没有信用行的其他账号类型。
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