Differentiation between star and snowflake schemas
Briefly describe the differentiation between star and snowflake schemas?
Expert
Star schema : A highly de-normalized method. A star schema has one fact table and is related with frequent dimensions table and depicts a star.
Snow flake schema : The normalized principles applied star schema is named as Snow flake schema. Each and Every dimension table is related with sub dimension table. Differences :
A dimension table will not have parent table in star schema, while snow flake schemas have one or further parent tables.
The dimensional table itself comprises of hierarchies of dimensions in star schema, while hierarchies are divide in various tables in snow flake schema. The drilling down data from top mainly hierarchies to the lowermost hierarchies can be done.
What do you understand by the term cascading update in DBMS?
State the term Open switch business continuity software?
Explain the Aggregate Awareness?
What are the catches?
Illustrate briefly the term DBMS?
Explain the term Vdisk and how this will communicate along with physical data storage at the time of data retrieval by AMP?
Write down the architectural and functional differentiations between Web Intelligence Reports and business objects?
States the term SnowFlake.
Describe briefly the difference between a Java applet and a Java servlet?
What are the kinds of files employed in Oracle recovery?
18,76,764
1957286 Asked
3,689
Active Tutors
1446577
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!