DBA's are very essential in an IT company and any application needs database. Hence it is essential of a DBA to monitor performance. Queries are involved with db side and it is very essential to write queries in an efficient manner in order to speed up an application and hence DBA's are highly demanded to increase performance. Performance tuning is an essential part which must be done before a project goes to production and hence it is highly recommended to have a DBA who knows the intricacies involved in the database operation. The execution plan of a query is studied well by a DBA and thus he plays a drastic role in improving the execution time of an application. It is also necessary to take frequent backups of the data in a periodic manner and a DBA does this job. He is dedicated to maintain the data in the project which is the most important part of application development. This job needs to be done with a great care and he is completely responsible for any loss of data.

Getting officially certified would add lots of value to the resume of a DBA which in turn improves his job scope. MCDBA are Microsoft certified database administrators’ who are specialized with the Microsoft products. Everyone has started to realize the importance of DBA's and hence the competition has in fact become very fierce. It is necessary for a successful DBA to equip themselves with good certificated like the MCDBA Certification which makes them stand out of the crowd. One could find lots of sample materials available on the internet which makes the test preparation process simpler. There are also various websites like the Testking which makes the test preparation process easier. Interested candidates can register with the site and it offers a test preparation series to the candidates which make one's preparation easier. In order to get the certification in Microsoft SQL Server 200 it is required to clear three core exams and one elective exam and these subjects provides good exposure to the candidates on the various challenges involved. After getting certified, the candidates would be well developed to tackle the database challenges. You want to look at DBA Upgrade Exams.