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Starting Out with Visual Basic 2010, 5th Ed by Tony Gaddis/Kip Irvine TEST BANK Chapter 10 Identify the letter of the choice that best completes the statement or answers the question. ____ 1. A database _____________is organized into rows and columns. a. grid b. matrix c. table d. spreadsheet ____ 2. A a. b. c. d. is a column (or columns) that uniquely identifies each row of data in a database. selector main key identifier primary key ____ 3. The SelectedValue property of a data-bound ListBox returns the value in the column specified by the ________ property. a. ValueMember b. ReturnColumn c. ReturnField d. DisplayMember ____ 4. A ________ component passes data from one or more database tables to your program. a. DataTransfer b. DataSet c. Connection d. TableAdapter ____ 5. A ________ is an in-memory copy of data read from database tables. a. data control b. dataset c. connection d. data adapter ____ 6. A ________ statement in SQL retrieves data from a database. a. Select b. Search c. Find d. SearchTable ____ 7. A table adapter’s _________ method is used to add a new row to a table. a. Add b. Append c. Insert d. Update ____ 8. In an SQL query, the _____ wildcard character, used with the LIKE operator, will match multiple unknown characters. a. & b. # c. * d. % Which statement does NOT accurately describe a database row? ____ 9. Chapter 10 67 Starting Out with Visual Basic 2010, 5th Ed by Tony Gaddis/Kip Irvine TEST BANK a. b. c. d. A row contains related data about a single item such as a department. A row contains one or more fields. When discussing a table, we refer to the rows by name. A row is part of a database table. ____ 10. Which table adapter method reads data from the database into the dataset? a. Fill b. Read c. Select d. Retrieve ____ 11. You use to provide multiple selection conditions in an SQL statement. a. relational operators b. compound expressions c. arithmetic operators d. the & operator ____ 12. A _________ keeps track of a database name, location, and authentication information. a. Data source b. Data set c. Connection object d. Table adapter ____ 13. What is the simplest way to update a user's changes to the database? a. No need to save user changes as this occurs automatically b. Use the Update method of a table adapter c. Click the diskette icon to save the dataset to the database d. Call the SaveDataset method of the table adapter ____ 14. The following statements are true about a data source except a. a data source is usually a database. b. a data source can be a text file. c. Data sets contain data retrieved from a data source. d. Data can be retrieved from but not written back to a data source. ____ 15. Each database ________ is also known as as a row in a database table. a. record b. table c. column d. field ____ 16. A _______________ is the design of tables, columns and relationships between tables for the database. a. data table b. database schema c. data set d. relational model ____ 17. __________ allows individual controls such as text boxes and labels to be linked to and automatically display the contents of a data source. Chapter 10 68 Starting Out with Visual Basic 2010, 5th Ed by Tony Gaddis/Kip Irvine TEST BANK a. b. c. d. Data binding A table adapter A data grid A data relation ____ 18. The SQL Select statement retrieves data from a database and returns it in a __________, a set of records matching the selection criteria. a. Subset b. Dynaset c. DataSource d. Dataset ____ 19. All of the following are true about SQL except __________. a. SQL provides a standard means of interacting with a database. b. SQL consists of several keywords. c. SQL stands for "Sequenced Query Language" d. SQL is an industry-standard language. ____ 20. Assume the following table named Student exists in a database: Name Number Address GPA Adams, Carol 123 Redford Hall 3.6 Baker, Paul 345 Kingman Hall 2.1 Jones, Jill 456 Bassett Hall 3.2 Smith, Mary 887 Redford Hall 3.8 Taylor, Darren 987 Bassett Hall 3.7 CumHrs 67 34 89 112 55 Which of the following SQL statements will return only the student name and GPA from the Student table for all students having a GPA that is greater than or equal to 3.5? a. b. c. d. SELECT SELECT SELECT SELECT Name, GPA FROM Student WHERE GPA >=3.5 * FROM Student WHERE GPA >= 3.5 Name, Number, GPA, CumHrs FROM Student WHERE GPA >= 3.5 Student WHERE GPA >= 3.5 And Name, GPA ____ 21. __________ is a tool provided by Visual Studio for creating and modifying SQL queries. a. Server Explorer b. SQL Explorer c. Query Builder d. SQL Toolbox ____ 22. The Where clause of an SQL statement specifies __________. a. the location of the database being queried b. which fields are to be displayed c. specifies the order in which the rows should appear d. specifies which rows should be retrieved ____ 23. The __________ control displays information from a dataset in row and column format. a. DataAware b. DataGridView Chapter 10 69 Starting Out with Visual Basic 2010, 5th Ed by Tony Gaddis/Kip Irvine TEST BANK c. d. DataListView DataTableView ____ 24. Which item describes the function of the following SQL statement? SELECT ID, Last_Name, First_Name, Address FROM Members WHERE Last_Name = @LastName a. b. c. d. a simple query a parameterized query a compound query a wildcard query ____ 25. In SQL the bit type is equivalent to which Visual Basic data type? a. Short b. Boolean c. Integer d. String ____ 26. A unique student ID number could be used as a _________, whereas a student’s last name would not be suitable because two students might have the last name. a. Primary Key b. Sort Key c. Record Type d. Data Source ____ 27. A complete set of data for a single student that includes the following information is called a __________. Student ID, First Name, Last Name, Major, Class a. b. c. d. Table Column Row Field ____ 28. Which of the following statements is false? a. A database can store more data more efficiently than sequential text files. b. When using a large amount of data, most developers prefer to use a DBMS. c. Visual Basic is used to interface with the user and a DBMS works directly with the data. d. Visual Basic statements can directly access database fields without using the DBMS. Chapter 10 70 Starting Out with Visual Basic 2010, 5th Ed by Tony Gaddis/Kip Irvine TEST BANK ____ 29. The correct SQL syntax to sort a table by Last_Name in order of A-Z is ______. a. SORT BY Last_Name ASCENDING b. ORDER BY Last_Name Down c. ORDER BY Last_Name ASC d. ORDER BY Last_Name DESC ____ 30. Which of the following SQL WHERE clauses will select all students whose last name begins with “S”? a. Where LastName Like “S%” b. Where LastName Like “S” c. Where LastName = “S%” d. Where LastName = “S*” Chapter 10 71 Starting Out with Visual Basic 2010, 5th Ed by Tony Gaddis/Kip Irvine TEST BANK Chapter 10 Answer Section Answer 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. Chapter 10 c d a d b a c d c a b c b d a b a d c a c d b b b a c d c a Page Reference 599 599 660 603 603 633 628 636 599 614 636 607 649 603 599 600 615 633 633 636 638 635 603 652 612 599 599 597 635 636 72