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Q1) When it comes to naming attributes, would you say that it is okay to give different names to the same attribute in different tables? For example, StudentFirstName, TeacherFirstName. Why or why not?
What about giving the same name to attributes that are in different tables but are not the same? For example, "Description" in both a Course table and a Classroom table.
What is the maximum rate at which data can be read from disk, assuming that we can only read data from one surface at a time? What is the average rotational latency?
Draw the E/R diagrams for the business rules
Controls which need a database to either execute transaction completely or not at all.
Examine different sales transactions. Design a context diagram and a level-0 diagram that represent the selling system at the store.
Database Questions: What do you mean by data base scheme? What do you mean by cardinality ratio? What do you mean by degree of relation?
Write a Assignment to study and modify the PostgreSQL source code, with a focus on one of the core modules - the buffer manager
MCIS 630 Database Systems: - Write a recursive SQL query that outputs the names of all subparts of the part with part-id “P- 100”.
You should choose a data storage problem of your interest and identify the different pieces of data that should be stored in database.
Knowledge and Data Warehousing
Views are integral part of virtual private databases, yet views are utilized for many other reasons. Find out many other uses for views.
Implement a database of courses and students for a school.
Why do you believe that views by themselves are insufficient for protecting access by unauthorized users?
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