Developing Multiple Nested Schema to Reduce Data Redundancy in CONoSQLDB Schema

The Corporate's interest of cloud computing based system continues accelerating due to its efficiency, promising performance and better scalability. Most of these systems use the Not Only SQL (NoSQL) database. The database has different characteristics from the relational database. Data migration from a relational database to a column-oriented NoSQL database (CONoSQLDB) can use the concept of Multiple Nested Schema. The concept has proved to be effectual to boost query performance but at the cost of high data redundancy. This study proposes a new conversion method called Enhanced Multiple Nested Schema, developed of Multiple Nested Schema by adding rules to identify and eliminate inter-table transitive dependency—one of the major causes of data redundancy. We aim to reduce data redundancy in CONoSQLDB Schema. The objective is to generate CONoSQLDB schema much better. Previous research did not pay attention to transitive dependency problems when doing schema conversion. The proposed conversion mechanism produces an efficient CONoSQLDB database schema. However, the schema guarantees complete data and allows queries quickly. This means that the additional rules proposed in this study can improve the CONoSQLDB schema generated using the previous method.