1. PHP and MySQL

2. What is the Relationship between PHP and MySQL?
PHP has the ability to connect to and manipulate databases.
The most popular database system that is used with PHP is called MySQL.
MySQL is a free database system and is supported by most servers.

3. MySQL - Fundamental Functions
Organize data – reduce or eliminate redundancy
Retrieve data – query/search/select
Sort data
Update data
Output – link to other software

4. MySQL Client/Server architecture Limited User Interface (PHPMyAdmin)
MySQL is cross platform, multi user access
Accessible to more users thru the web, client program or other admin tools to access database (via authentication)
Can be integrated with Web Server (web programming languages)
Data available remotely
Free, open-source

5. Data Types Data Type Definition Text 0-255 characters Memo
Number
Integer, long integer, single, double
Date/Time
Dates, times, or both at once
AutoNumber
Automatically incremented as records are added
OLE object
Image, sound files
Hyperlink
Link to an internet resource

6. Practice 1: Determine Data Types
Books
Authors
TITLE
PUBLISHER_id
ISBN
QTY. Id
ISBN
Author
Publishers
PUBLISHER_id
PUBLISHER

7. Practice 1: Data Types - Solution
Books
Authors
TITLE
Text (255)
PUBLISHER_id
Number (integer)
ISBN
Text(10)
QTY.
Number(integer) Id
Number(integer)
ISBN
Text(10)
Author
text(255)
Publishers
PUBLISHER_id
integer
PUBLISHER
text(255)

8. Practice 2: Determine Data Types Personnel Institutions Positions
Pers_id
Last
First
M.I.
Institution_id
Institutions
Institution_id
Institution
Sector
Positions id
pers_id
position

9. Practice 2: Solution Data Types Personnel Institutions Positions
Pers_id
Number (integer)
Last
Text(255)
First
M.I.
Text(1)
Institution_id
Institutions
Institution_id
Number(integer)
Institution
text(255)
Sector
Text(25)
Positions id
Number(integer)
pers_id
position
Text(200)

10. Basic MySQL Operations
Create table
Insert records
Load data
Retrieve records
Update records
Delete records
Modify table
Join table
Drop table
Optimize table
Count, Like, Order by, Group by
More advanced ones (sub-queries, stored procedures, triggers, views …)

11. SELECT SELECT is used to select data from a database
The result is stored in a result table, called the result-set
SQL is not case sensitive
SELECT syntax
SELECT column_name(s)
FROM table_name;
SELECT * FROM table_name;

12. SELECT Persons Table P_Id LastName FirstName Address City 1 Hansen Ola
Timoteivn 10
Sandnes 2
Svendson
Tove
Borgvn 23 3
Pettersen
Kari
Storgt 20
Stavanger
SELECT LastName, FirstName FROM Persons;
SELECT *FROM Persons;

13. WHERE clause SELECT column_name(s) FROM table_name
WHERE column_name operator value;
SELECT * FROM persons
WHERE city=‘Sandnes’;

14. WHERE Clause
Text values should be quoted by single quotes or double quotes
Numeric values do not need to be enclosed in quotes
SELECT * FROM persons
WHERE city=‘Sandnes’; Or
WHERE city=“Sandnes”;
WHERE P_Id=1;

15. WHERE Clause Operator Description = Equal <> Not equal >
Greater than
<
Less than
>=
Greater than or equal
<=
Less than or equal
BETWEEN
Between an inclusive range
LIKE
Search for a pattern IN
If you know the exact value you want to return for at least one of the columns

16. AND or OR
AND, OR operators are used to filter records based on more than one condition
AND=both the first and the second conditions is true
OR=either the first or the second condition is true

17. AND or OR SELECT * FROM persons
WHERE firstname=‘Tove’ AND lastname=‘Svendson’;
SELECT * FROM persons
WHERE firstname=‘Tove’ OR firstname=‘Ola’;
SELECT * FROM persons
WHERE lastname=‘Svendson’ AND (firstname=‘Tove’ OR firstname=‘Ola’);

18. INSERT INTO Use to insert new records in a table
INSERT INTO table_name
VALUES (value1, value2, value3,…);
INSERT INTO table_name (column1, column2, column3, …
VALUES (value1, value2, value3,…);
INSERT INTO persons VALUES (4, ‘Nilsen’, ‘Tom’, ‘Vingvn23', 'Stavanger');
INSERT INTO persons (P_Id, lastname, firstname)
VALUES (5, ‘Tjessem’, ‘Jakob’);

19. DELETE statement Used to delete records in a table
DELETE FROM table_name
WHERE some_column=some_value;
DELETE FROM persons
WHERE lastname=‘Tjessem’ AND firstname=‘Jakob’;
DELETE FROM table_name; Or
DELETE * FROM table_name;

20. Creating a MySQL Database
Use phpMyAdmin to build a single Table Database.
The database will be called addressbook and the table will be called friend.
The table will include the following attributes:
First name
Last name
Phone
Birthday
– A record will identified by this primary unique key