Tag: database table

Delete / Remove Records In Database Table: PHP & MySQL

Video tutorial demonstrates deleting / removing of data / records from the database table.

First look at these short videos:
Connect to the database
Simple / basic insertion operation
Insertion of Records into Database using Forms: PHP & MySQL (important)
SELECT / LIST Records From Database Table: PHP & MySQL
UPDATE / EDIT Records In Database Table: PHP & MySQL

SELECTING and Displaying Data
index.php

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Name:

List of companies ..

Name:

List of companies ..

Some CSS styling for simple / basic presentation: CSS Hover Over Effect

We have added delete link beside each record.

Deleting Records From Database Table

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";
}
?>

Here we receive the value of id, passed from index.php and assign it to a local variable called $id.
Then using simple DELETE query, we delete the records associated with the id.

Video Tutorial: Delete / Remove Records In Database Table: PHP & MySQL



YouTube Link: https://www.youtube.com/watch?v=ByaECx2mj9M [Watch the Video In Full Screen.]



List of companies ..
1. Google USA edit delete
2. Apple USA edit delete
3. Microsoft USA edit delete
4. Oracle USA edit delete

UPDATE / EDIT Records In Database Table: PHP & MySQL

Video tutorial demonstrates updating / editing of data / records from the database table and displaying it on the browser.

First look at these short videos:
Connect to the database
Simple / basic insertion operation
Insertion of Records into Database using Forms: PHP & MySQL (important)
SELECT / LIST Records From Database Table: PHP & MySQL

Source Code: SELECTING and Displaying Data

index.php
Name:

List of companies ..

edit
"; ?>

Video Tutorial: UPDATE / EDIT Records In Database Table: PHP & MySQL



https://www.youtube.com/watch?v=Hw1MwUlekeo [Watch the Video In Full Screen.]


Source Code: Updating / Editing Data / Records In The Database Table

edit.php

";
}
 
?>
Name:

meta tag used to redirect to other page..

MySQL Query

mysql> UPDATE apple SET name='newName' WHERE id='session_id';

Security Issue:
Make sure not to allow people to explicitly pass random id’s and retrieve and edit/update other’s data. To solve this issue, you can save the id of the logged in user in a session variable and instead of passing id to edit.php we can directly use the id stored in our session variable.
This would solve the issue.

Output: After Updating the records:

  1. Google USA
  2. Apple USA
  3. Microsoft USA
  4. Oracle USA
  5. Technotip IN

Video’s To Watch:
GET method in action
Post method in action
session variable basics
User login and session