International Journal of Application or Innovation in Engineering & Management (IJAIEM)
With tremendous growth of data in database, distributed database is the current requirement with additional feature of heterogeneity. Today's database is not stored on single site; rather they are stored on multiple sites with extra features like transparency, performance. Such databases are termed as distributed database. Heterogeneous distributed database is combination of fragments of database with different schema belonging to different vendor technology namely Oracle. MySQL and MSSQL stored on different sites. This paper is to build a platform which enables a user to communicate with all the databases with a single query.