Answer / Amod Kumar Singh

An Entity-Relationship (ER) diagram is a graphical representation used in data modeling to illustrate the relationships between entities (objects, concepts, or things) within a system. ER diagrams consist of entities, attributes, and relationships, helping to visualize and understand complex data structures.

Why null values are mapped as 0 in fact tables?

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How to handle time period attribute for time dependent data?? a.)add time period as a part of pk b.)add time period simply and make it nullablec.)add time period simply and make it not null.

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Explain the main differences between star and snowflake schema?

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Can you explain how analysis service works?

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i have scheduled a report in a job in the cognos8.3 which would send the reports to the respective user ,now the repot ran and is sent to the respective user but it contains some unwanted data. So based on the senario can any one tell me that can we recall back the report ??????

1 Answers   Wipro,

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Explain me what are conformed dimensions?

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What is defined as partial backup?

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How would you declare an inline css to format the table with a background color of yellow and give the table cell a right margin of 10 pixels?

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Explain what is a three tier data warehouse?

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Code the tables statement for a single-level (most common) frequency?

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What function should we use to display the value entered or selected by a user in response to a prompt?

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How to define a cube??

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