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DB29.7

DB29.7

DB29.7

DB29.7

1

With DB2 9. 7, XML index creation allows concurrent write operations by default, just like the creation of relational indexes.

在 DB29.7 中，与创建关系索引一样，XML 索引创建操作在默认情况下允许并发的写操作。

2

You can download scripts that implement this method for a number of the new monitoring table functions introduced in DB2 Version 9. 7.

可以下载本文附带的脚本，这些脚本为 DB29.7 中引入的众多监控表函数实现这种方法。

3

Note that this script is designed to support a DB2 9. 7 server running on Windows.

注意，该脚本支持 Windows 上运行的 DB29.7 服务器。

4

To help companies address this challenge , IBM enhanced its DB2 9. 7 features for pureXML in several important ways.

为了帮助公司解决这个难题，IBM 在几个重要方面改进了 DB29.7 的 pureXML 特性。

5

This article provides a guide to using the new enhancements to DB2 9. 7 that enable you to make online changes to the database schema.

本文提供了有关使用 DB29.7 新增强的指南，使您能够对数据库模式进行在线更改。

6

Of the various data compression techniques available in DB2 9. 7 , row compression offers the biggest possibilities for storage savings.

在 DB29.7 提供的数据压缩技术中，行压缩在节省存储空间方面最为极端。

7

With DB2 9. 7 , partitioned indexes are now supported , allowing each data partition to be indexed separately.

现在，DB29.7 支持分区索引，允许每个数据分区单独索引。

8

Relaxed name resolution DB2 9. 7 does not require inline views to be named anymore.

不严格的名称解析 DB29.7 不再需要命名内联视图。

9

Range partitioning addresses this administrative requirement , and DB2 9. 7 extends prior support for this technology to include XML data.

范围分区可以满足这个管理需求，DB29.7 已经改进了对这种技术的支持，可以处理 XML 数据。

10

Prior to DB2 9. 7 , all DB2 objects had a unique two-part name . The first part was the schema name and the second part was the object name.

在 DB29.7 之前，所有 DB2 对象都有一个惟一的名称，名称由两部分组成，第一部分是模式名，第二部分是对象名。

11

DB2 9. 7 now uses the default-locking state so that readers will not wait for the outcome of a pending write.

现在，DB29.7 使用的默认锁状态允许读者不等待写操作的结果。

12

13

For DB2 9 . 7, the limits on the size of large and temporary table spaces have been increased four-fold.

对于 DB29.7 ，大型表空间和临时表空间的大小限制增加了 4 倍。

14

But DB2 9. 7 can store XML in a warehouse and can scale to accommodate high volumes of data -even a terabyte or more.

但是，DB29.7 可以在数据仓库中存储 XML ，还可以适应高数据量 ——甚至可以达到 1TB 或更多。

15

These new database design options are just part of the pureXML enhancements offered in DB2 9. 7.

这些新的数据库设计选项只是 DB29.7 提供的 pureXML 改进的一部分。

16

Important enhancements in DB2 9. 7 are that the LOAD utility can now be used to load XML data.

DB29.7 中的重要改进是现在可以使用 LOAD 实用程序装载 XML 数据。

17

The new DB2 9. 7 release also offers organizations more options in security management and high availability.

新的 DB29.7 版本还在安全管理和高可用性方面提供了更多选择。

18

Also, On partitioned tables , indexes over XML data that you create with DB2 V9. 7 or earlier are nonpartitioned.

另外，在分区的表上，用 DB29.7 或更早版本创建的 XML 数据索引是不分区的。

19

Specify that you want to create the model by reverse engineering a DB2 9. 7 database.

指定需要通过对 DB29.7 数据库进行反向工程来创建模型。

20

As previously mentioned , DB2 9. 7 defines three types of standby servers : hot , warm, and cold.

正如前面所提到的，DB29.7 定义了三种类型的备用服务器：热、暖和冷。

21

Second , DB2 9. 7 has extended its support for changing column data types on existing tables.

其次，DB29.7 扩展了它修改已有表中的列数据类型的支持。

22

DB2 9. 7 promotes the use of XML indexes to process queries against relational views of the XML data.

在处理针对 XML 数据的关系视图的查询时，DB29.7 会尽可能使用 XML 索引。

23

The benefits of table partitioning extend to tables with XML data starting DB2 9. 7.

自 DB29.7 起，支持将表分区扩展到含有 XML 数据的表。

24

DB2 9. 7 includes the following improvements for application developers.

DB29.7 包括针对应用程序开发人员的以下改进

25

The routine ADMIN_MOVE_TABLE that is used for the actual movement of the table is shipped with the core DB2 9. 7 product or later.

用于实际移动表的例程 ADMIN_MOVE_TABLE 则随核心 DB29.7 产品或更高版本附带。

26

DB2 9. 7 extends the DB2 database partitioning feature (DPF) to support both XML and relational data.

DB29.7 扩展了 DB2 数据库分区特性（DPF ），支持 XML 和关系数据。

27

With DB2 9. 7 , the security model has been enhanced to allow for separation of duties.

在 DB29.7 中，安全模型已经增强，允许职责分离。

28

The first step in using the SQL compatibility features in DB2 9. 7 is to enable the DB2_COMPATIBILITY_VECTOR parameter.

使用 DB29.7 中新的 SQL 兼容性特性的第一步是启用 DB2_COMPATIBILITY_VECTOR 参数。

29

DB2 9. 7 now supports implicit casting between data types.

DB29.7 现在支持隐式的数据类型强制转换。

30

Prior to DB2 9. 7 , indexes for partitioned tables were nonpartitioned.

在 DB29.7 发布之前，分区表索引是非分区的。

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