Introduction of the term slowly changing dimensions
Provide a brief introduction of the term slowly changing dimensions (or SCD)?
Expert
SCD are dimensions whose data alters very gradually. An instance of this can be city of a worker. This dimension will alter very gradually. The row of this data in the dimension can be either putted back totally with no any track of old record OR a new row can be putted in, OR the alter can be tracked.
Explain how one source columns or the rows may be loaded within the two different tables?
Write down the latest error handling technique in SQL Server 2005?
Describe briefly three types of binary relationships in DBMS?
Write down brief note on the issues for database performance?
Specify the data units at the different layers of TCP / IP protocol suite?
Describe the difference between a regular sub query and a correlated sub query?
How can we increase the performance within the Data Stage?
Write down brief note on the differentiation between dynamic cache and static cache?
Explain terms Data Cache in Sybase. Answer: It is the memory area where data which is required for the current queries running is bought by Disk upon to memory for
Describe briefly the alternative terminology which is employed in the relational model?
18,76,764
1949276 Asked
3,689
Active Tutors
1436318
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!