How do i transfer funds from one account to another in the same table?

Question

Say for example i want to transfer funds from UserID 1111101 to UserID  1111103.
Anyone know the procedure for this. I use php/mysql and dreamweaver.

Answer 1

Here's a very basic method. Note that this is just pseudocode - you'll need to work out the actual code (I assume you've learned how in your course studies). Keep in mind this is a very simplified workflow - a real bank transaction would be MUCH more complex.
Create a form that has fields for debit account, credit account, amount
In your script, assign the values from the form to local variables
$debit_acct
$credit_acct
$amount
I'll assume you have an account balance table 'acct_bal'. Have a journal table to store those values along with the date and autonumber transaction id.
Begin Trans
INSERT into journal (credit_acct, debit_acct, amount, trans_date) VALUES ($credit_acct, $debit_acct, $amount, NOW())
Get the transaction_id ($trans_id) from the INSERT statement- the method depends on which MySQL interface you are using.
UPDATE acct_bal SET balance = (balance + $amount) WHERE acct_id = $debit_acct
UPDATE acct_bal SET balance = (balance - $amount) WHERE acct_id = $credit_acct
Rollback on any SQL error else Commit Trans.