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Draw the precedence graph of the following schedule and determine whether the schedule is serializable. (Note that all instructions, except lock and unlock, are omitted. We assume
normal forms
Explain the use of constraints in functional model with suitable example. A constraint shows relationship between two objects at same time, or among various values of the sam
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
The State of Newyork certifies firefighters throughout state keep track all of them, as well as the state’s of fire departments. Each fire department has unique department number
Compare three clustering algorithms in Weka. For this comparison, you will need to use at least two different datasets. Run the algorithms on the datasets, and use the visual
FDs in Entities : Student entity : Enrolment number → Student name, Address Course Entity :
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
Benefits and limitations
What is inheritance? Define it in detail? Inheritance Inheritance can be at the levels of types, or at the level of tables we first consider inheritance of types, then i
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