7
Application porting
Chapter 7.
The task of migrating an application, its databases, and the associated data most 
often requires significant resources and commitments. Simultaneously to the 
meticulous planning of the porting project as a whole, it is paramount to assess 
the issues that may be high up to the highest level of resources. In many porting 
projects this is the part of application porting. This chapter attempts to give the 
reader  food for thought  in the following areas:
Differences in SQL Data Manipulation Language (DML), built in functions, 
and SQL semantics
Converting application source, application programming interfaces (APIs), 
and condition handling
Internals of the Database Management System that may impact the 
conversion, such as locking, isolation levels, transaction logging, and national 
language support
  Copyright IBM Corp. 2004. All rights reserved.
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