Functional dependencies are not equations
In which case the functional dependencies are not equations? Describe briefly?
Expert
Equations are deal with numerical relationships. A functional dependency is deals with the existence of a determinant relationship between characteristics, regardless of whether or not there is a numerical relationship between them. Therefore, if we know that there is no hot water every Sunday; No-Hot-Water is functionally dependent on Sunday. Hence if we know it is Sunday, then we know we will have No-Hot-Water. That is a functional dependency, but it is not an equation.
Explain about extension and intension.
Illustrates the about Data Manipulation Language?
Explain what is Structured Query Language (SQL)?
Briefly describe the foreign key columns in dimension table and fact table?
explain binary relationship set and terenary relationship set
Explain the term Enterprise and Workgroup modes?
Explain the types of jobs we have within the Data stage?
Explain the linked universes?
Explain the term Coalesce. Answer: Coalesce is also obtainable in Sybase, this function estimates the listed expressions and returns the first non-null value.
Explain the term optimization and performance tuning and its work in practical projects?
18,76,764
1941517 Asked
3,689
Active Tutors
1417090
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!