db2types类型还提供了将DB 2数据库列值表示为一个个可以为空的对象的方法。
The DB2Types classes also provide a means to represent DB2 database column values as individual nullable objects.
一个数据库表中某个特定列中的所有值都以用户提供的相同密码、相同的加密算法和相同的加密方式进行加密。
All values in a specific column of a database table are encrypted with the same password provided by the user, the same encryption algorithm, and the same cipher mode.
如果在某个表上拥有CONTROL权限，那么就可以更新属于该表的值，但是如果拥有数据库上显式的DBADM授权的话，那么您可以更新任何可更新的列。
If you hold CONTROL privilege on a table, you can update values that pertain to that table, but if you hold explicit DBADM authority on the database, you can change any updatable column.
该时间戳列默认情况下由数据库管理器维护，但是也接受用户提供的输入值。
This timestamp column is maintained by default by the database manager, but a user-provided input value is also accepted.
这种安置是由一个内部的哈希函数决定的，该函数接受定义为分区键的列内的值并返回数据库分区号。
The placement is determined by an internal hashing function that takes the values in the column or columns defined as a partitioning key and returns the database partition number.
如上所述，此业务对象将映射到数据库中的列数据值。
As I stated earlier, this business object will map to column data values in our database.
该节点可以从特定的数据库行查找指定列值的集合。
This node can lookup a collection of named column values from a located database row.
您的数据库模式是周期性的，数据更改主要针对具有特定列值的行。
If you have a time cyclic database schema where data changes are localized to rows with certain specific column values.
以SQLXML数据类型的形式检索XML数据库类型列值。
Retrieve an XML database data type column value as an SQLXML Java type.
pdb_id列中各异的值数量很大，这就确保了跨数据库分区可以获得相对均衡的行分布。
The large number of distinct values in the pdb_id column ensures a relatively even distribution of rows over the database partitions.
SIF记录格式还包含特定于delta的列，以协助将现有数据库记录的指示符值设置为NULL。
The SIF record format also contains delta specific columns to assist in setting the indicator values of existing database records to NULL.
给定数据库行中的指定列值集合可以在一个或多个同步处理的XPath表达式中引用。
A collection of named column values from a located database row are referenced within one or more synchronously processed XPath expressions.
指定数据库中指定列值的集合在一个或多个同步处理的XPath表达式中得以引用。
A collection of named column values from a specified database row are referenced within one or more synchronously processed XPath expressions.
xml_tag包含四个参数：标记名称、标记值(查询中数据库的列)、标记属性和标记的子元素。
Xml_tag takes four arguments: the name of the tag, the value of the tag (database column in the query), the attributes of the tag, and the subelements of the tag.
num_quantiles数据库配置参数指定应将列数据值分成的组数。
The num_quantiles database configuration parameter specifies the number of sections into which the column data values should be grouped.
因为它存在一些性能方面的问题和其他方面的一些缺点(例如，如果您使用MicrosoftSQLServer作为数据库，那么要求必须按照与选择列相同的顺序来读取列的值)。
It has performance issues and other quirks (like requiring you to read column values in the same order you do the select if you're using Microsoft SQL Server for your database).
然后，该视图通过在列表中的每个列上进行循环，提供数据库中每一列的值。
Then, the view loops through each of these to provide the value of each column in the database.
有些数据库系统，包括DB2，实际上存储的是一个列中的第二大的值和第二小的值，而不是最大值和最小值。
Some database systems, including DB2, actually store the second highest and second lowest values in a column, instead of maximum and minimum values.
可以添加额外的代码来执行一个检查，检查新值是不是一个用户定义值，用以表明数据库值应该被设置为NULL或针对该列定义的默认值。
Additional code could be added to perform a check to see if the new value is a user-defined value indicating that the database value should be set to NULL or the default value defined for the column.
在使用DPF时，根据表的分布键(这在创建表时定义)的散列值，把表的每一行放在特定的数据库分区中。
With DPF, each row of a given table is placed in a specific database partition based on the hashed value of the table's distribution key, which is defined when the table is created.
对远程数据库使用db2auth插件时，管理员的密码(非散列值)。
The administrator's password (not hashed) when using the db2auth plug-in for remote databases.
通常，一种优秀的实践就是不要在关系数据库中使用null(即没有值)列，因为当您试图读取这类列时，您将得到一个null值异常。
A general, good practice is not to allow null (that is, no value) columns in a relational database, because when you attempt to read such a column, you get a null value exception.
使用DPF，我们建议通过对pdb_id列的值进行散列处理来跨数据库分区分布pdbxml表和atom_site表中的数据。
Using the DPF, we recommend to distribute the data in the PDBXML table and atom_site table across the database partitions by hashing on the values of the pdb_id column.
用户帐户和密码(散列值)将直接存储在数据库中。
User accounts and (hashed) passwords are stored directly in the database. Furthermore, the following information is stored in a flat file called db2auth_key.txt.
数据库用默认值填充的列。
数据库用默认值填充的列。
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