Database administrator is an individual who is responsible for carrying out all the maintenance activities for functioning and development of databases. He is responsible for recoverability i.e creating backups of data in safe storage mediums, maintaining integrity of data, data security, performance etc. A data base administrator usually installs database management software, configures hardware and software problems, establishes standards for maintaining integrity of data, data modeling and optimization, database design and data analysis. Database administrators are usually responsible for the maintenance of database management systems installed in the organization.