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?
Consider the Registration relation shown in the exhibit. Which of the following SQL statements would return all tuples that have course codes beginning with the letter M?
FROM Registration WHERE
Consider the following relational algebraic expression: Which of the following SQL Course_Code = 'A4343';
statements is equivalent to this relational algebraic expression?
In which phase of database design do you identify entities, attribute domains, and relationships?
Your enterprise has created a database and database application. The testing phase for the project has started. Which of the following best describes white-box testing of the projects software?
Consider the symbols shown in the exhibit. Which of the following correctly identifies these symbols when used in an entity-relationship (ER) diagram?
Consider the following SQL statement and the Orders relation shown in the exhibit:
What is the output of this SQL statement?
Which term describes the management of simultaneous transactions to prevent conflicts?