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What is the difference between a conceptual, a logical, and a physical data model? Where do relationship diagrams (RDs) and entity/relationship diagrams (ERDs) fit in?
Construct (i) a use-case diagram (ii) a class diagram (iii) System Sequence Diagram (iv) detailed Sequence Diagram or diagrams as appropriate and (v) a state chart for a car object/class according this scenario. Include appropriate properties for ..
Explain the differences between the notions of Database (DB), Database Management System (DBMS) and Database System (DBS).
Discussion Compare and contrast garbage collection in a structured programming languages
You are interested in analyzing some hard-to-obtain data from two separate databases. Each database contains n numerical values.
you are the information security officer at a medium-sized company 1500 employees. the cio asks you to explain why you
Describe how you have represented weak entities, if any exist and describe how you have represented super type and subtype entities, if any exist.
The goal is simple; you are to install the O/S, the Database Server and create a database and then secure it all as best you can.
Carry out the following tasks below by using the correct SQL statements. Create the statements in Oracle by using the following steps (SQL > SQL commands > Enter Command). Determine the columns that make up the primary key of the l_lunch_items tabl..
The assignment will be chosen by the individual student with my approval. An ideal assignment will be one which involves at least four entity sets, but not too many since there will be critical time pressure to complete the assignment.
Explain the function of input controls. Identify four (4) types of input control and explain the function of each
What is Recovering a database via rollforward? What is aim of transaction log? What is contained in transaction log?
How to decide which attribute should be there in the table and schema? How to identify the primary keys, foreign keys, domain, E-R diagram and 20 Queries on the same database.
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