Entity and Relationship
Write about the term Attribute, Entity and Relationship?
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a) An attribute is defined as a component of an entity and which helps to define the uniqueness of entity. In the relational databases, an attribute maps to the column.
b) An entity represents the chunk of information. Within the relational databases, an entity generally maps to the table.
c) The entities are related together using the relationships.
Explain the slowly changing dimensions?
Briefly describe the differentiation between data warehouse and OLAP?
Illustrates the term data sparsity and how this effect upon aggregation?
Write down a short note on the Volatile Temporary tables (VTT).
How many modes are there in Business objects and Designer?
Name the methods that are available in storing sequential files?
What is the simplest sorting method to utilize in data structures?
Specify the types of join that are available?
Describe briefly the measure objects?
Briefly describe the differentiation between the EXCEPT and INTERSECT operators?
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