Write Create Table SQL statements based on the above ERD. All tables must have primary keys. All tables must have appropriate foreign key constraints. Foreign keys must have the same name, datatype and size of the primary key that they refer to The following columns datatypes and sizes must be used: bid,authid / number(4) title,sname,fname / varchar2(30) sellingprice, payrate / number(6,2) Table Column Type Range author sname & fname Unique book title Not Null book sellingprice Check not negative allocation payrate Check 1 to 79.99
Write Create Table SQL statements based on the above ERD. All tables must have primary keys. All tables must have appropriate foreign key constraints. Foreign keys must have the same name, datatype and size of the primary key that they refer to The following columns datatypes and sizes must be used: bid,authid / number(4) title,sname,fname / varchar2(30) sellingprice, payrate / number(6,2) Table Column Type Range author sname & fname Unique book title Not Null book sellingprice Check not negative allocation payrate Check 1 to 79.99
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Write Create Table SQL statements based on the above ERD.
All tables must have primary keys.
All tables must have appropriate foreign key constraints.
Foreign keys must have the same name, datatype and size of the primary key that they refer to
The following columns datatypes and sizes must be used:
bid,authid / number(4)
title,sname,fname / varchar2(30)
sellingprice, payrate / number(6,2)
|
Table |
Column |
Type |
Range |
|
author |
sname & fname |
Unique |
|
|
book |
title |
Not Null |
|
|
book |
sellingprice |
Check |
not negative |
|
allocation |
payrate |
Check |
1 to 79.99 |
Transcribed Image Text:bid
authid
title
fname
O sellingprice
sname
payrate
has
has
ВОOK
ALLOCATION
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AUTHOR
Task
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