19. Which of the following shows One to Many relationship? O A. One user has one set of user settings. One set of user settings is associated with exactly one user. О в. A customers can purchase different products and products can be purchased by different customers. O C. One school can have many phone numbers but a phone number belongs to one school. 20. To declare a primary key go to column, then choose Primary Key. O A. Attributes OB. Null 0 с. Index O D. Type 21. Which among the string data type requires to specify the length the field can hold? OA. VARCHAR О в. BLOB O C. LONGBLOB D. TEXT 22. If Product Code is 78178, it can be declared using the following data type except I. INT II. TINYINT III. BIGINT IV. SMALLINT O A. I AND III O B. II AND IV 0 с. II ONLY O D. II AND III ** H 23. In $x= new mysqli("localhost","root"," ,"student"); What is the username? O A. OB. student 0 с. localhost root

Database Systems: Design, Implementation, & Management
12th Edition
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Carlos Coronel, Steven Morris
Chapter8: Advanced Sql
Section: Chapter Questions
Problem 10RQ
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19. Which of the following shows One to Many relationship?
O A.
B.
One user has one set of user settings. One set of user settings is associated with exactly one user.
A customers can purchase different products and products can be purchased by different customers.
One school can have many phone numbers but a phone number belongs to one school.
C.
20. To declare a primary key go to
column, then choose Primary Key.
A.
Attributes
B.
Null
O C.
Index
D.
Type
21. Which among the string data type requires to specify the length the field can hold?
A.
VARCHAR
B.
BLOB
C.
LONGBLOB
D.
TEXT
22. If Product Code is 78178, it can be declared using the following data type except
I. INT
II. TINYINT
III. BIGINT
IV. SMALLINT
OA.
I AND III
B.
II AND IV
C.
II ONLY
O D.
II AND III
23. In $x= new mysqli("localhost","root","","student"); What is the username?
"1"
O A.
B.
student
O c.
localhost
root
Transcribed Image Text:19. Which of the following shows One to Many relationship? O A. B. One user has one set of user settings. One set of user settings is associated with exactly one user. A customers can purchase different products and products can be purchased by different customers. One school can have many phone numbers but a phone number belongs to one school. C. 20. To declare a primary key go to column, then choose Primary Key. A. Attributes B. Null O C. Index D. Type 21. Which among the string data type requires to specify the length the field can hold? A. VARCHAR B. BLOB C. LONGBLOB D. TEXT 22. If Product Code is 78178, it can be declared using the following data type except I. INT II. TINYINT III. BIGINT IV. SMALLINT OA. I AND III B. II AND IV C. II ONLY O D. II AND III 23. In $x= new mysqli("localhost","root","","student"); What is the username? "1" O A. B. student O c. localhost root
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