Web Data Management Chapters 4-6

40 Questions | By Gleavitt | Updated: Mar 20, 2022 | Attempts: 704

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Web data management chapters 4-6

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1.

To create a PDO object, you code the _____________________ keyword, followed by PDO, followed by the three arguments that it requires.
2.

To execute a SELECT statement, you use the _____________________ method of the PDO object that connects to the database.
3.

To execute an INSERT statement, you use the _____________________ method of the PDO object that connects to the database.
4.

To handle the PDO exceptions that can occur when database methods are executed, you use a _____________________ statement.
5.

To access one of the elements in an array, you code the array name and a set of brackets that contains the _______________________ of the element you want to access.
6.

To return an array for the first row of a result set that’s returned by a SELECT statement, you use the fetch method of the _____________________________ object that represents the result set.
7.

To access the data for all of the rows in a result set that’s returned by a SELECT statement, you can use a _____________________________ loop.
8.

What date did you complete this worksheet _____________________________ .
9.

When you create a PDO object, you have to pass all but one of these arguments to it: Which one is it?
- A.
  
  Data source name
- B.
  
  Server name
- C.
  
  User name
- D.
  
  Password
10.

In the catch block of a try/catch statement for handling PDO exceptions, you can get a message that describes the exception by using the getMessage method of the
- A.
  
  PDO object
- B.
  
  PDOStatement object
- C.
  
  PDOException object
- D.
  
  Result set array
11.

Which of the following is the correct way to code a PHP statement that returns the result set for a SELECT statement that’s stored in $statement if the PDO object is $db?
- A.
  
  $results = $db->query($statement);
- B.
  
  $results = $db->exec($statement);
- C.
  
  $results = query->$db($statement);
- D.
  
  $results = exec->$db($statement);
12.

Which of the following is the correct way to code a PHP statement that puts the first row of PDOStatement object named $products in an array named $product?
- A.
  
  $product = $db->query($products);
- B.
  
  $product = $db->fetch($products);
- C.
  
  $product = $products->query();
- D.
  
  $product = $products->fetch();
13.

Code example 4-1 The starting code for the index.php file which is the first page of an application (Refer to code example 4-1) The first statement in this example gets and runs a file named database.php. What must this code do for the rest of the statements in this example to work?
- A.
  
  Create a PDOStatement object named $db that connects to the right database
- B.
  
  Create a PDOStatement object named $db-> that connects to the right database
- C.
  
  Create a PDO object named $db that connects to the right database
- D.
  
  Create a PDO object named $db-> that connects to the right database
14.

Code example 4-1 The starting code for the index.php file which is the first page of an application <?php require 'database.php'; $category_id = $_GET['category_id']; if (!isset($category_id)) { $category_id = 1; } // Routine 1 $query = "SELECT * FROM categories WHERE categoryID = $category_id"; $category = $db->query($query); $category = $category->fetch(); $category_name = $category['categoryName']; // Routine 2 $query = "SELECT * FROM products WHERE categoryID = $category_id ORDER BY productID"; $products = $db->query($query); ?> (Refer to code example 4-1) What does routine 1 store in the variable named $category_name?
- A.
  
  The category name for the first row in the categories table of the database
- B.
  
  The category name for the row in categories table that corresponds to the value in $category_id
- C.
  
  The category name for the row in categories table that has a category ID of 1
- D.
  
  An array of the category names in the categories table
15.

Code example 4-1 The starting code for the index.php file which is the first page of an application (Refer to code example 4-1) What does routine 2 store in the variable named $products?
- A.
  
  A PDOStatement object for all rows in the products table
- B.
  
  A PDOStatement object for the columns in the first row in the products table
- C.
  
  A PDOStatement object for the rows in the products table that have a category ID equal to the value in $category_id
- D.
  
  A PDOStatement object for the rows in the products table that have a category ID equal to 1
16.

When you use the MVC pattern, the model consists of the PHP files that work with and represent the _________________________ of the application.
17.

When you use the MVC pattern, the ___________________ consists of the PHP files that make up the user interface of the application.
18.

When you code a function in PHP, you start with the keyword __________________.
19.

When you code a function in PHP, you can list one or more ____________________ that must be passed to the function.
20.

To call a function in PHP, you code the function name followed by a list of any _________________________ that are required.
21.

To make a variable that’s declared outside a function available to the function, you must code the _________________________ keyword.
22.

When you _______________________ an HTTP request, all processing takes place on the server before the response is returned to the browser.
23.

To pass data back to the statement that calls a function, the function can use the _________________________ statement.
24.

When you use the MVC pattern, the controller gets the HTTP requests and then directs the use of the files that represent
- A.
  
  The model, the view, and the database
- B.
  
  The database and the view
- C.
  
  The model, the view, and the user interface
- D.
  
  The model and the view
25.

When you use the MVC pattern, you
- A.
  
  Make each layer as independent as possible
- B.
  
  Perform all data validation on the client
- C.
  
  Use the pattern for every page in the application
- D.
  
  Put all of the PHP code in the controller