Your enterprise must decide whether to use a database management system. Which of the following lists four advantages of using a DBMS?
Correct Answer:C
Consider the Orders relation shown in the exhibit. Which of the following SQL statements would replace the value in the Sales_Rep_No column with 110 everywhere that Sales_Rep_No 108 is listed?
Correct Answer:B
Which relational algebraic operation is used to select specific columns (attributes) from a relation?
Solution:
Does this meet the goal?
Correct Answer:A
Which characteristic is an advantage of a database management system?
Correct Answer:C
Consider the following database information:
domain s_id: integer
domain grd: fixed length character string length 1
STUDENT_GRADE(
Student_Number: s_id NOT NULL Grade: grd )
Primary Key Student_Number
During which phase of the database design process would this information be developed?
Correct Answer:A