1. Database Processing: David M. Kroenke’s Chapter Seven:
Fundamentals, Design, and Implementation
Chapter Seven:
SQL for Database Construction
and Application Processing
Part One
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

2. View Ridge Gallery
View Ridge Gallery is a small art gallery that has been in business for 30 years .
It sells contemporary European and North American fine art.
View Ridge has one owner, three salespeople, and two workers.
View Ridge owns all of the art that it sells; it holds no items on a consignment basis.
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

3. Application Requirements
View Ridge application requirements:
Track customers and their artist interests
Record gallery's purchases
Record customers' art purchases
List the artists and works that have appeared in the gallery
Report how fast an artist's works have sold and at what margin
Show current inventory in a Web page
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

4. View Ridge Gallery Database Design
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

5. SQL DDL and DML DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

6. The Database Design for ARTIST and WORK
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

7. CREATE TABLE CREATE TABLE statement is used for creating relations
Each column is described with three parts: column name, data type, and optional constraints
Example:
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

8. Data Types DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

9. Constraints
Constraints can be defined within the CREATE TABLE statement, or they can be added to the table after it is created using the ALTER table statement
Five types of constraints:
PRIMARY KEY may not have null values
UNIQUE may have null values
NULL/NOT NULL
FOREIGN KEY
CHECK
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

10. Creating Relationships
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

11. Implementing Cardinalities
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

12. Default Values and Data Constraints
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

13. SQL for Constraints
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

14. ALTER Statement
ALTER statement changes table structure, properties, or constraints after it has been created
Example:
ALTER TABLE ASSIGNMENT
ADD CONSTRAINT EmployeeFK FOREIGN KEY (EmployeeNum)
REFERENCES EMPLOYEE (EmployeeNumber)
ON UPDATE CASCADE
ON DELETE NO ACTION;
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

15. Adding and Dropping Columns
The following statement will add a column named MyColumn to the CUSTOMER table:
ALTER TABLE CUSTOMER ADD MyColumn Char(5) NULL;
You can drop an existing column with the statement:
ALTER TABLE CUSTOMER DROP COLUMN MyColumn;
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

16. Adding and Dropping Constraints
ALTER can be used to add a constraint as follows:
ALTER TABLE CUSTOMER ADD CONSTRAINT MyConstraint CHECK ([Name] NOT IN ('Robert No Pay'));
ALTER can be used to drop a constraint:
ALTER TABLE CUSTOMER DROP CONSTRAINT MyConstraint;
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

17. Removing Tables If there are constraints: SQL DROP TABLE:
DROP TABLE [TRANSACTION];
If there are constraints:
ALTER TABLE CUSTOMER_ARTIST_INT
DROP CONSTRAINT Customer_Artist_Int_CustomerFK;
ALTER TABLE [TRANSACTION]
DROP CONSTRAINT TransactionCustomerFK;
DROP TABLE CUSTOMER;
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

18. SQL DML - INSERT INSERT command: Bulk INSERT:
INSERT INTO ARTIST ([Name], Nationality, Birthdate,
DeceasedDate)
VALUES ('Tamayo', 'Mexican', 1927, 1998);
Bulk INSERT:
INSERT INTO ARTIST ([Name], Nationality, Birthdate)
SELECT [Name], Nationality, Birthdate
FROM IMPORTED_ARTIST;
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall

19. David M. Kroenke’s Database Processing Fundamentals, Design, and Implementation (10th Edition)
End of Presentation:
Chapter Seven Part One
DAVID M. KROENKE’S DATABASE PROCESSING, 10th Edition
© 2006 Pearson Prentice Hall