NATIONAL OPEN UNIVERSITY OF NIGERIA,
University Village, Plot 91, Cadastral Zone, NnamdiAzikiwe Express Way, Jabi, Abuja
FACULTY OF SCIENCES
DEPARTMENT OF COMPUTER SCIENCE
JULY 2017 EXAMINATION
Course code: DAM 401
Course Title: Oracle Application
Time: 2 Hours
Instruction: Answer any Four (4) questions.
1a. Define constraints state, list and define four (4) constraints supported by Oracle.[71/2marks]
1b. Differentiate between Cell and Table. [10 marks]
2a. Highlight the five (5) steps that must be followed in the correct order when creating a Database in Linux Operating system. [71/2 marks]
2b. Discuss trigger and list the six (6) more commonly used triggering events. [10 marks]
3a Describe the causes of Lock Contention. [71/2 marks]
3b Write short note on Deadlocks and how can it be detected. [10 marks]
4a. Discuss the three sets of data dictionary views of Oracle. [71/2 marks]
4b. Highlight any five (5) categories of failures. [10 marks]
5a. Discuss any five responsibilities of a Database Administrator. [10 marks]
5b. Discuss (SQL) Structured Query Language and the languages that made up of SQL.[71/2 marks]
6a Explain the Database blocks. [10 marks]
6b. Differentiate between Row and Column. [71/2 marks]
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