In some cases, you may have to unload the tables, delete all the data, change the database design, then reload the data.
在某些情况中，您还需要删除表以及表中的所有数据，修改数据库的设计，然后重新加载数据。
To achieve its exceptional speed, High Performance Unload reads directly from the DB2 table space containers instead of using the database engine when extracting, recovering, and moving data.
为了获得超常规的速度，在提取、恢复和移动数据时，HighPerformance Unload直接从DB2表格空间容器中读取数据，而不是使用数据库引擎读取数据。
Sufficient disk space to unload the source database to flat files on the system where MTK is installed.
有足够的磁盘空间，可以将源数据库卸载到安装了MTK的系统的文本文件中。
Easily migrate data to a partitioned database or warehouse using the splitter function to unload into pre-split files ready for parallel loading.
使用splitter功能将数据卸载到预分区文件来为并行加载做准备，轻松地将数据迁移到分区数据库或数据仓库。
The High Performance Loader (HPL) is a feature of IDS that allows users to load and unload large amounts of data efficiently to or from a database.
高性能加载器(High Performance Loader,HPL)是IDS的一个功能，允许用户有效地在数据库中加载和卸载大量数据。
High performance Unload does not interact directly with the DB2 database manager, so the production database performance is not affected, as shown in Figure 5.
HighPerformance Unload不直接与DB 2数据库管理器进行交互，因此生产数据库的性能不会受到影响。如图5所示。
With DB2 High Performance Unload 4.1, you can use a single DB2 High Performance Unload control file to unload the data, transfer it, and load it into the new database.
使用DB2HighPerformanceUnload 4.1，使用一个 DB2 High Performance Unload控制文件就能够卸载数据、转移数据以及将其加载到新数据库中。
DB2 High Performance unload can also repartition data and help speed backup and recovery operations by enabling unload and recovery of single tables from a full database backup.
DB 2HighPerformanceUnload还能够重新分配数据，帮助提高备份和恢复操作的速度，它启用了从完整的数据库备份卸载和恢复单个表的功能。
When complete, you see four files in the migr folder: geninput, rowcount, timetrac.tables (where timetrac is the database name), and unload.
在完成之后，您会在migr文件夹看到4 个文件：geninput、rowcount、timetrac.tables（其中timetrac是数据库名称）和unload。
When complete, you see four files in the migr folder: geninput, rowcount, timetrac.tables (where timetrac is the database name), and unload.
在完成之后，您会在migr文件夹看到4 个文件：geninput、rowcount、timetrac.tables（其中timetrac是数据库名称）和unload。
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