INTERVIEW QUESTIONS

Difference between Microsoft Business Intelligence MSBI and Power BI. SSIS, SSAS and SSRS.

Microsoft product with ETL capability, multidimensional data organizing capability and visualization ability. MSBI comes with three sub components to support earlier mentioned functionalities. The following are the components of MSBI:

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Explain Tableau Architecture or Framework ?

Conceptually Tableau Architecture contains the following components:

Client or Source Data : OLTP, OLAP, Files, Multidimensional Data and others

Data Connectors : Tableau Fast Data Engine, SQL Connectors, MDX Connectors and Repository


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Configuring automatic refresh in Power BI.

Power BI now has all of the information it needs to refresh the data, both on demand and on a scheduled basis. Expanding the Schedule Refresh section, you can define when Power BI attempts to refresh the dataset.

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Explain different types of JOINS in SQL ?

The following are the JOINS in SQL

. INNER JOIN
. OUTER JOIN
>> LEFT OUTER JOIN
>> RIGHT OUTER JOIN
>> FULL OUTER JOIN

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