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Unleashing DB2 10 for Linux, UNIX, and Windows
book

Unleashing DB2 10 for Linux, UNIX, and Windows

by Danny Arnold, Steve Diniro, Vivian Lee, Stan Musker, Jo-Ann Woods
August 2012
Intermediate to advanced content levelIntermediate to advanced
162 pages
4h 25m
English
IBM Redbooks
Content preview from Unleashing DB2 10 for Linux, UNIX, and Windows
8 Unleashing DB2 10 for Linux, UNIX, and Windows
2.1 Overview of Time Travel Query
A standard SELECT query against a table in a DB2 database retrieves the
currently committed value of each data row within that table. In certain instances,
an organization cannot use the currently committed value of the data, but wants
to use the data results
as of a specific point in time. In addition to allowing system
time, which is automatically provided by DB2, to be used within temporal tables,
DB2 10 provides a business time component or a combination of system time
and business time. With system time, both past and present information can be
queried; with business time, past, present, and future information can be queried.
Although business time provides ...
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ISBN: 0738437107Purchase book