What is Online Data Migration?
Online data migration refers to the transfer of data from one location to another, often from an old server to a new one, usually in high volume. There are a wide variety of reasons for online data migration including changing hosting services, an operating system switchover, or the installation of new software. For big companies, online data migration can be an intensive process because the system may need to be kept running while data is moved, and it is crucial that no data be lost. One common form of online data migration is a website migration. Many bloggers have experienced this when they switch hosting services. Essentially, every website is accompanied by a database of information, so that users can access the site and the contents. As hosting needs change, a company may need to move the entire database over to a new server. Ideally, the move could be completed while a working version of the website was left up. Once the data has been moved, small changes may be necessary to ge
well sailesh,(DataBase Management System) Software that controls the organization, storage, retrieval, security and integrity of data in a database. It accepts requests from the application and instructs the operating system to transfer the appropriate data. The major DBMS vendors are Oracle, IBM, Microsoft and Sybase (see Oracle database, DB2, SQL Server and ASE). MySQL is a very popular open source product (see MySQL). DBMSs may work with traditional programming languages (COBOL, C, etc.) or they may include their own programming language for application development. DBMSs let information systems be changed more easily as the organization’s requirements change. New categories of data can be added to the database without disruption to the existing system. Adding a field to a record does not require changing any of the programs that do not use the data in that new field.
