The left column provides navigational controls that enable you to select the products you want to work with, switch the topic you are interested in, or invoke a search.
左栏提供了导航控件，可以在这里选择想要使用的产品、切换感兴趣的主题或调用搜索。
Therefore, the first three lines of Listing 2 indicate that we want to retrieve only a subset of the FpML 4.7 trade data stored in the DOCUMENT column.
因此，清单2的前三行表明，我们只想检索存储在document列中的FpML 4.7交易数据的一个子集。
As UEFA's technical director Andy Roxburgh explains in his editorial column, great players constantly want the ball and are always ready to take a hit from opponents to get it.
欧足联技术指导AndyRoxburgh在评论栏中解释道，伟大的球员会一直努力去控制球，并乐于为此接受对手的冲击。
Although I have only enough column space to describe their projects at a high level, some allowed me to provide their contact information in case you want more details about their work.
尽管我只有一个专栏的空间来描述他们高层次上的项目，如果你想知道关于他们工作的更多的细节，有些方面我可以提供相关的信息。
Note: Use this mode only if the application can tolerate false negatives and does not want to add additional storage to each row for a row CHANGE TIMESTAMP column.
注意：只有在应用程序可以容忍漏判，并且不希望向每一行添加针对ROWCHANGE timestamp列的额外存储的情况下，才使用这种模式。
Content that you want to personalize is often also found in relational databases, where each row represents a piece of content, and each column holds an attribute describing that content.
您想个性化的内容也经常在关系数据库中，此时每一行代表一段内容，而每一列保存描述该内容的一个属性。
Since I don't want to tie the column to a specific product, I will leave the editor as an exercise for the reader.
由于我不想把这个专栏文章变成对某个特定产品的介绍，因此我打算把编辑器这部分当作练习留给读者。
Recall that the input string contains a full timestamp with date and time information, and you want to populate the TIMECHANGED column in the DB2 target table with only a time value.
记住，输入字符串包含一个带有日期和时间信息的完整时间戳，您希望仅使用一个时间值填充db 2目标表中的timechanged列。
Consider a scenario where you want to bind a set of XML schemas with an XML column.
考虑这样一个场景，您需要将一组XML模式绑定到一个xml列。
Because I want to demonstrate decoding generic types for this column, the type information needs to include the specific parameter types used with a generic type reference.
因为我想在这一期中演示泛型的解码，所以类型信息需要包含泛型引用所使用的具体的参数类型。
Hence, if you want to define a VARCHAR column that can store up to 10 characters, you have to define the column as VARCHAR (40) because a single character requires from 1 to 4 bytes.
因此，如果想定义一个最多存储10个字符的varchar列，那么必须将这个列定义为VARCHAR(40)，因为一个字符占用1到4字节。
A language so similar to SQL would seem to want to return column sets (tuples), like SQL does, but an object database doesn't work that way — it wants to return objects, not arbitrary sets.
类似于SQL的语言要求返回列集(元组)，与SQL相同，但是对象数据库不会以这种方式工作——它希望返回对象，而不是随机集。
By default, a column can contain a NULL value, but if you don't want that, you can append the "NOT NULL" postfix to the field definition.
默认情况下，列可以包含null值，但是，如果不想这样，可以在字段定义中附加“NOT NULL”后缀。
Similarly, if you want to display a view in a narrow column, you might choose a small number of pertinent columns of information to display.
同样，如果需要在窄栏中显示视图，则可以选择显示少量相关的信息栏。
For example, if you want configuration elements to be stored on a per-user basis, you need to add a user ID as an extra column.
例如，如果想让配置元素按照每个用户进行存储，就需要添加用户ID作为额外的一列。
Column locking is useful for when you want to freeze a column or collection of columns while scrolling and reviewing data in the other columns.
当您想要在滚动或查看其他列数据时冻结一个或一组列时将会很有用。
Now finally I want to take up the example, the most controversial example in his essay, one which is a source of outrage for most readers, at the bottom of page 1893 in the left-hand column.
最后我想讲一个例子，也是他的文章中一个最有争议的例子，它激怒了很多读者，在1893页左栏下方。
Design Studio recognizes automatically that you want to predict a nominal value column and automatically offers you those Settings (in the same TAB) available for this purpose.
DesignStudio自动识别出您要预测一个标称值列，并自动提供可用于这一目的设置(在同一个选项卡中)。
As shown in Figure 4, you want DataStage to extract data stored in one DB2 XML column and map this data to two tables in a DB2 data warehouse.
如图4所示，您将让DataStage提取存储在一个DB 2xml列中的数据，然后将该数据映射到DB 2数据仓库的两个表中。
If you want to create a column that cannot be null, you must explicitly add the parameter :null => false.
如果希望创建一个不能为空的列，您必须显式地添加参数 :null =>false。
For example if you want to determine all subordinates (Column EMPLOYEE) for a specific manager (Column BOSS), PRIOR must be placed in front of the EMPLOYEE Column.
例如，如果您想要确定某个特定经理(列boss)的所有下属(列employee)，则必须将PRIOR放在employee列的前面。
For example, suppose you want to perform a count of the rows where the XML data column has an element text with the value This should validate!.
例如，假设您想要计算其XML数据列的text元素的值为Thisshould validate ！的行的数量。
Drag and drop the "Sortable column title" to the title cell of a column that you want to have sorting capabilities.
把“SortableColumnTitle ”拖放到希望实现排序功能的列的标题单元格中。
The actual field being mapped is an instance of Author, and you want to take the identifying part of that object—the id—and map it to a column called author_id.
映射的实际字段是Author实例，需要找到该对象的标识符部分 —id —并将其映射到列 author_id。
When you want to determine whether a given row includes a comment, you no longer need to check for a null value in the COMMENT column.
确定某一个行是否包含注释时，不再需要检查COMMENT列的null值。
Build a secondary index on a timestamp column if you want to improve the performance of incremental population.
如果您想改善增量填充的性能，则可在时间戳列上生成一个二级索引。
By putting a bar code data field in a label or envelope publication, you indicate where you want information from the bar code column to appear in the printed copies.
通过将条码数据域放在标签或信封出版物中，您可以指定希望条码列中的信息在打印出的副本上显示的位置。
By putting a bar code data field in a label or envelope publication, you indicate where you want information from the bar code column to appear in the printed copies.
通过将条码数据域放在标签或信封出版物中，您可以指定希望条码列中的信息在打印出的副本上显示的位置。
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