What are the four basic types of operations for a database application?  a. Insert, Select, Update, and Delete b. Insert, Update, Delete, and Create c. Insert, Update, Delete, and Render d. Insert, Select, Update, and Render   If stringa="Good Morning", what is the value of stringa[1:5]? a. "Good " b. "ood " c. "Good" d. "ood M" The instance that “a survey respondent in service occupation (x) is less likely to report income ” is an example of __________ .  a. Missing completely at random. b. Missing at random. c. Missing not at random. d. None of the above.

The SQLiteOpenHelper and SQLiteCursor classes are described, with a focus on how they may be used to perform create, read, update, and delete (CRUD) actions on a SQLite database.

What happens if a database loses referential integrity? Which mistake do you make most often?

Which of the following handles communication with the user of a database?A. Application software B. Database management system C. Actual database

The following is necessary when multiple users access/modify the database simultaneously.   A) Distributed database B) parallel database  C) concurrency control   D) centralized database Which one?

Respond to one or both of the following statements: It is impossible to produce good information from poor data. No matter how sophisticated the application programs are, it is impossible to use good application programs to overcome the effects of bad database design.

2. DEL Transactions: The following transaction schedule is given. A,B,C are the addresses of the records in the database and T1, T2 and T3 are the transactions. T1 R(A)W(A) R(C) R(B)W(B)C T2 T3 R(B) W(B) R(C) R(B)W(B) R(A) с a) Show an example of a strict 2PL implementation that leads to a deadlock b) For a) draw a >>wait-for<< graph c) Avoid the previously drawn deadlock with a wait-die<< policy d) Give an example of another schedule that would be conflict-equivalent to the given schedule of transactions W(A)C