November 2005
Intermediate to advanced
400 pages
9h 41m
English
book
Siebel 7.8 with IBM DB2 UDB V8.2 Handbook
by Whei-Jen Chen, Priti Desai, Ujwala Devi, Sreeman Kancherla, Venkatram Menakuru, Raghu Ramaswamy, Scott Saunders, Arjun Sirohi
Content preview from Siebel 7.8 with IBM DB2 UDB V8.2 Handbook
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130 Siebel 7.8 with IBM DB2 UDB V8.2 Handbook
6.1 Backup
The single most important item you can possess, that will prevent catastrophic
data loss in the event of storage media failure, data corruption, and user data
modification, is a database backup.
A database backup is also required for various other reasons such as:
Database migration/upgrade
Application software upgrade
Setup of production and test environments
Database copies for developers
High availability and disaster recovery
Hardware upgrade
6.1.1 Logging concepts
Database transaction logs are crucial for recovery because they keep track of
changes made to the database objects and data. DB2 UDB uses a write-ahead
logging scheme in which it writes transactions to the logs bef
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