Data integration is the process of merging data from several sources and giving people a single picture of it. When two similar firms need to integrate their databases, for example, or when research findings from several bioinformatics repositories, for example, domains, this process becomes important in several situations.
Data integration arises more frequently as big data volume and the demand to communicate existing data both skyrocket. It has been the subject of significant theoretical research, yet there are still many unresolved issues. The integration of data promotes internal and external user collaboration. To offer synchronous data across a network of files for clients, the data being integrated must be obtained from a heterogeneous database system and turned into a single coherent data store