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Explain trivial dependency? Functional dependency of the form α ->β. is trivial if α C β. Trivial functional dependencies are satisfied by all the relations.
why shadow copy technique is used?
Find out the names of all employees who work for first Bank Corporation from database. SELECT EMPLOYEE_NAME FROM WORKS WHERE COMPANYNAME = ‘First Bank Corporation';
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
Describe Physical Data independence ? Physical Data Independence - It is capacity to modify the internal schema without having to change conceptual schema. Therefore, the exter
Define object-relational systems? Systems that give object-oriented extensions to relational systems are known as object-relational systems.
Describe in brief about the Sequence Diagrams Sequence diagrams are interaction diagrams which emphasize time ordering of messages. In UML, it is shown as a table which shows
What is the need for triggers? Triggers are useful mechanisms for alerting humans or for starting particular tasks automatically when particular conditions are met.
I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
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