Database Integrity Mechanism between OLTP and Offline Data

This paper describes integrity mechanism between OLTPs and offline data. Normally every RDBMS supports five Integrity Constraints (ICs) namely primary key or composite key, unique key, foreign key, not null and check constraints. Online database integrity is achieved through these five ICs. However, as per the retention period data is backed up and removed from the OLTPs for space and performance efficiency. But there is no standardized protocol on keeping integrity between offline data and data present in the OLTPs. Therefore, we present a solution to address the problem of offline data integrity by keeping a representative set of purged data & ICs in the online database to ensure data integrity between OLTPs and offline data. We further support our proposed solution with the help of two types of integrity tests i.e., sufficient and complete test.