by admin | Jun 7, 2015 | sem3
data warehousing testing Testing is very important for data warehouse systems to make them work correctly and efficiently. There are three basic levels of testing performed on a data warehouse: Unit testing Integration testing System testing Unit Testing In unit...
by admin | Jun 7, 2015 | sem3
data warehousing tuning and testing A data warehouse keeps evolving and it is unpredictable what query the user is going to post in the future. Therefore it becomes more difficult to tune a data warehouse system. In this chapter, we will discuss how to tune the...
by admin | Jun 7, 2015 | sem3
Global System for Mobile Communications GSM Introduction: GSM is the short form of Global System for Mobile Communications. It is called 2G or Second Generation technology. It is developed to make use of same subscriber units or mobile phone terminals throughout the...
by admin | Jun 7, 2015 | sem3
data warehousing backup A data warehouse is a complex system and it contains a huge volume of data. Therefore it is important to back up all the data so that it becomes available for recovery in future as per requirement. In this chapter, we will discuss the issues...
by admin | Jun 7, 2015 | sem3
data warehousing security The objective of a data warehouse is to make large amounts of data easily accessible to the users, hence allowing the users to extract information about the business as a whole. But we know that there could be some security restrictions...
by admin | Jun 7, 2015 | sem3
data warehouse process managers Process managers are responsible for maintaining the flow of data both into and out of the data warehouse. There are three different types of process managers: Load manager Warehouse manager Query manager Data Warehouse Load Manager...
