Data migration from legacy system to oracle




                    Data migration is describe the process of translating data from one format to another and is necessary when an organization decides to use a new computing systems or database management system that is incompatible with the current system.

                       Same like the legacy data is a recorded information that exists in current storage system, and can include database records, spreadsheets, text files, scanned images etc. These data formats can be migrated to a new system, which is the process of importing legacy data to a new system. Legacy data migration can seem like a scary process to a lot of businesses, some of the important things are included in the legacy mapping process like data dependencies to other systems, infrastructure dependencies, data location and legal requirements to keep legacy data available.



                      Oracle database is the first database designed for enterprise grid computing, it's the most flexible and cost effective way to manage information and applications. Oracle can provide support for migrating data from legacy or non-oracle technologies to oracle. Oracle SQL Developer tool to migrate non-Oracle databases to Oracle. It facilitate upgrading Oracle Database, we can use the export and import utilities in Oracle Data Pump to migrate data from one database to another one. It provides high performance export (expdp) and import (impdp) utilities.

                    Data migration programming is as important as the application programming, also more important than the application code because it's what preserves the data, and the data is the only thing of value. This programming is a complex process, that requiring a robust methodology. The process in this data migration planning guide will help to minimize the risks in the data migration project.


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