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Database professionals can count on being involved in a database migration at least once – and probably more than once – in their careers. Unless the migration involves a small, trivial system, such operations are not insignificant to say the least. Why do migrations occur? While there can be many reasons for performing a database migration, the motivation behind such a thing usually boils down to one of three issues:
- Scale — the current database configuration cannot support the current or upcoming workload and so a new database platform must be acquired.
- Cost — the current system has become cost prohibitive given its contribution to the overall business, so a more cost effective database platform must be found.
- Integration — for business reasons such as a corporate acquisition, the current database needs to be consolidated and integrated into another system that is not the same (but can be the same) database platform.
The movement to and from even similar platforms can be challenging, but when a dissimilar database platform move is attempted (like Oracle to Microsoft SQL Server)or a new operating system is utilized, then things can quickly become complex. This paper discusses the issues surrounding database migrations and focuses on how data lifecycle solutions from Embarcadero Technologies can take the bite out of such endeavors.
Composite applications and service-oriented integration enable the development of new solutions from existing applications. In short, they allow companies to do more with what they already have. Additionally, the supporting service-oriented architecture promises to deliver to enterprises the capacity for unprecedented agility. Read this important White Paper from Above All Software
While J2SE 5.0 has added many new features Sun Microsystems has also been working to continue to improve scalability and performance, with a new emphasis on startup time and memory footprint. This guide gives an overview of the performance and scalability improvements made in the J2SE 5.0 release along with various benchmarks to demonstrate the impact of these improvements.
