The substring is very important and mostly used function. You can get part of string from main string. This example gives you clear idea on how to use it especially in DB2.
DB2 version10 provides an individual package option for managing concurrency access within applications in 3 ways.
This post tells about very simple idea for DB2 developers about the concept of external stored procedures, how to create and how to run these stored procedures. The stored procedures can be written in any supported language.
The database consistency is very important to get up to date information. In DB2 database why data consistency is necessary and best explained with example when it is needed. Committing the data is a main task in data consistency.