20694565
Beschreibung
Quiz von Rebecca Walton, aktualisiert more than 1 year ago
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Erstellt von Rebecca Walton
vor mehr als 4 Jahre
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Frage 1
Frage
In MySQL, data in a database are often stored in one or more tables.
Antworten
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true
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false
Frage 2
Frage
In MySQL, what is a table column called?
Antworten
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a record
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an object
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a field
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a relation
Frage 3
Frage
Which of the following statements is correct?
Antworten
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A database is used to create a DBMS
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A DBMS is used to create a database
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A DBMS is the same as a database
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A DBMS and a database are not related
Frage 4
Frage
MySQL is a database
Antworten
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true
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false
Frage 5
Frage
If the following connection is used in your PHP statement, what is the password for the account?
$conn = mysqli_connect('a', 'b', 'c');
Antworten
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a
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b
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c
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no password
Frage 6
Frage
In MySQL, which of the following statement is used to create a database?
Antworten
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CREATE DATABASE schoolDB
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CREATE DATABASE
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CREATE schoolDB
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DATABASE schoolDB
Frage 7
Frage
In MySQL, suppose an SQL statement is stored in a variable called $query and the connection is stored in $conn, how do you execute the statement?
Antworten
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mysqli_query($conn, $query);
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mysqli_query($query, $conn);
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mysqli_execute_query($conn, $query);
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mysqli_execute_query($query, $conn);
Frage 8
Frage
In MySQL, before executing an SQL CREATE TABLE statement, what must be done?
Antworten
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You must know how many records are in the table
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You must know the data for the table
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You must select a foreign key
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You must select a database to add the table
Frage 9
Frage
What is the primary key of the a table?
Antworten
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One or more fields that contain familiar values
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One or more fields that can uniquely identify each record
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One or more fields that have meanings to the end users
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One or more fields that are key to the success of the table
Frage 10
Frage
In MySQL, before you can execute any SQL statement, you must ____________ to the database.
Antworten
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connect
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find a table
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use primary key of a table
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know how many tables are related
Frage 11
Frage
In SQL, what does the following statement do?
INSERT INTO abc (field1Name, field2Name) VALUES (field1Value, field2Value)
Antworten
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Insert two rows into a database called abc
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Insert two rows into a table called abc
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Insert one row into a database called abc
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Insert one row into a table called abc
Frage 12
Frage
In SQL, what does the following statement do?
SELECT * FROM student;
Antworten
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Select asterisk from a table called student
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Select asterisk from a database called student
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Select all rows and columns from a table called student
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Select all rows and columns from a database called student
Frage 13
Frage
In SQL, what does the following statement do?
UPDATE student SET studentGpa = 4.0 WHERE studentId = 4;
Antworten
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Set all students' GPA to 4.0
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Set the student's GPA to 4.0 whose student ID is 4 in the student table
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Set all student's GPA to 4.0 where possible
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Set the student's GPA to 4.0 whose student ID is 4 in the student database
Frage 14
Frage
In SQL, what does the following statement do?
DELETE FROM student;
Antworten
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Delete one row in a database called abc
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Delete one row in a table called abc
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Delete all rows in a database called abc
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Delete all rows in a table called abc
Frage 15
Frage
In MySQL, after all the SQL statements are executed, you must ______ to the database.
Antworten
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thank
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close the connection
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save the data
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exit
Frage 16
Frage
In PHP, why should you use mysqli_real_escape_string () function?
Antworten
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You will get the real string from the HTML form
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The codes will run faster
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The codes will be more secure
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none of the above
Frage 17
Frage
In MySQL, if you add AUTO_INCREMENT attribute to a field of a table, ________________
Antworten
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the table will automatically increase in size
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the field will automatically increase in size
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MySQL will automatically add a unique integer to the field when a new record is inserted
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MySQL will automatically add a new record to the table
Frage 18
Frage
Which of the following is NOT a data type in MySQL?
Antworten
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BOOLEAN
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DECIMAL
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VARCHAR
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DATE
Frage 19
Frage
What is special about the following URL?
Contentupdate.php?id=2
Antworten
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The browser requests a page called contentupdate.php which is second page
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The browser requests a page called contentupdate.php and the page id is 2
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The browser requests a page with the password of 2
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The browser requests a page called contentupdate.php and passes an id value of 2 that the contentupdate.php page usually needs
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