Illustrate the five SQL built-in functions
Illustrate the five SQL built-in functions.
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COUNT: calculates the num of lines in a table.
SUM: totals numeric columns.
AVG: calculates the average value in SQL.
MAX: receives the maximum value of a column in a table.
MIN: receives the minimum value of a column in a table.
What is meant by the Cardinality?What is meant by the Cardinality?
Describe briefly three types of binary relationships in DBMS?
How would the developer describe all variables using referential data types?
Illustrates the ETL data integration software?
What is BCA? Discuss its features?
Explain what do you mean by the virtual warehouse?
Give a brief introduction of the term active data warehousing?
Briefly describe EDW?
Explain the object qualification?
Describe the differences between unstructured data and structured data?
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