by admin | Jun 7, 2015 | sem3
data warehouse system managers System management is mandatory for the successful implementation of a data warehouse. The most important system managers are: System configuration manager System scheduling manager System event manager System database manager System...
by admin | Jun 7, 2015 | sem3
Advanced Mobile Phone System (AMPS) is an Analog mobile cell phone system standard developed by Bell Labs, and officially introduced in Americas on October 13, 1983 AMPS is a first generation cellular technology that uses separate frequencies or “channels”, for each...
by admin | Jun 7, 2015 | sem3
data warehousing data mart Listed below are the reasons to create a data mart: To partition data in order to impose access control strategies. To speed up the queries by reducing the volume of data to be scanned. To segment data into different hardware platforms. To...
by admin | Jun 7, 2015 | sem3
data warehouse metadata concepts Metadata is simply defined as data about data. The data that is used to represent other data is known as metadata. For example, the index of a book serves as a metadata for the contents in the book. In other words, we can say that...
by admin | Jun 7, 2015 | sem3
data warehousing partitioning strategy Partitioning is done to enhance performance and facilitate easy management of data. Partitioning also helps in balancing the various requirements of the system. It optimizes the hardware performance and simplifies the management...
by admin | Jun 7, 2015 | sem3
data warehousing schemas Schema is a logical description of the entire database. It includes the name and description of records of all record types including all associated data-items and aggregates. Much like a database, a data warehouse also requires to maintain a...
