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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