Database functions-system development life cycle
Write a short on the six database functions which occur during the systems development life cycle?
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The enterprise modeling that analyzes the present data processing. Conceptual data modeling which identifies attributes, entities, and relationships. The logical database design is identifies data security and integrity requirements. The physical database definition and designs which defines database to DBMS. The database implementation that installs and alters data from previous systems. Database maintenance that fixes mistakes in the database and database applications.
Give a brief introduction of the term BUS Schema?
How can we do unit testing into the informatica? How to load data in the informatica?
Define the term data aggregation?
Explain the term Relationship in brief.
Illustrate the five SQL built-in functions.
What do you understand by the term SQL view in DBMS? Briefly describe the utilization of views?
Elucidate how many kinds of dimensions are accessible in the Informatica?
Specify the other areas for the purpose of Data warehousing and the data mining.
What do you mean by optimization and performance tuning and explain how does it actually work in the practical projects?
Describe the differences between unstructured data and structured data?
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