Jack,
Thanks a lot for you help.
I did actually work out the logistics of the code and
it's doing fine. It's probably a solution to my
problem, there's only a couple of things though :
a) I got about 800 plus records in the table. And
there's a lot of empty or duplicate records in there
which need to be deleted. So if i individually delete
every record then i will have to run the code for each
ID individually. That would be a lot to do. That's why
i was wondering if there's a way, by which after
having deleted those empty/duplicate records, i could
just clear the entire ID field and run a code that
would generate IDs in order again...
b) How can i check when the record is sent to the DB
using PHP3 or mySQL if there's any value in the field
or not? I have put up a JavScript validation to check
for the same in the form, and yet, something's
defeating that and empty records are entering into the
DB. I don't know why really!!
Thanks a bunch!
Cheers Glory,
Thomas Edison jr.
--- Jack Dempsey [EMAIL PROTECTED] wrote:
Thomas,
The code i gave can't be copied directly in...you
need to use it as a guide,
but use your own variables...
So, basically, whatever field you have as your id
field, that is what you
will put in place of what i called id_num...and the
number 36 was just an
example...see if this makes sense:
you want to delete a record with the column ID being
X
'delete from table where ID=X' that would be your
sql
then you send another query:
$sql = update table set ID=ID-1 where IDX;
what this does is say ok, the numbers before the
item you deleted will stay
the same, but from the place you deleted on higher
you need to decrement the
id values by one.
try this from the mysql command line on a test table
with some fake records,
and you should see what i mean...
good luck
jack
-Original Message-
From: Thomas Edison Jr.
[mailto:[EMAIL PROTECTED]]
Sent: Monday, November 12, 2001 2:09 AM
To: Jack Dempsey
Subject: RE: [PHP] Resetting ID in mySQL DB
Jack,
Ok i get it! Lemme just go through the code once
more... to be exact.. the code will be :
?php
$db = mysql_connect(localhost,dbname,pass);
mysql_select_db(dbname,$db);
$sql = update table set id_num=id_num-1 where id
36,$db;
$result = mysql_query($sql);
?
Or i made a mistake?
Is there anyway i can re-write all the IDs from 1
onwards?
Thanks a Ton!
Cheers Glory!
--- Jack Dempsey [EMAIL PROTECTED] wrote:
say you have 100 records.
you delete number 36.
your db will then be
...
34
35
37
38
...
correct?
after a delete, you could then say:
update table set id_num=id_num-1 where id 36
and this would update all relevant records
-Original Message-
From: Thomas Edison Jr.
[mailto:[EMAIL PROTECTED]]
Sent: Monday, November 12, 2001 1:52 AM
To: [EMAIL PROTECTED]
Subject: [PHP] Resetting ID in mySQL DB
Hi,
I'm facing a problem. I made a simple DB with
simple
adding records in DB operation. I've even put up a
JavaScript validation of the Form from where you
add
info. And yet, in the display table, there are
many
many blank fields. I don't know how they are
generated.
The Adding of info form is at :
http://www.mjimm.com/index.php3?page=fanlist_add.php3
The display of records is at :
http://www.mjimm.com/fanlist_view.php3
Now the Display table also Displays the ID of the
Record. If i go in my mySQL Admnin, and delete the
rows with blank or duplicate records.. the ID also
is
deleted but then is alway missing from the list.
That
is, if i delete Row with ID 78, the next record
feeded
will start from 79 and not 78. So there's gonne be
missing ID's from Records. Which i don't want. But
which has already happened. How can i correct it??
I want to reset the entire IDs to reflect the true
Number of records after i delete the Empty/Blank
Rows
Duplicate Record Rows!! How can i do that!
Please
help!
Cheers Glory,
Thomas edison jr.
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Rahul S. Johari (Director)
**
Abraxas Technologies Inc.
Homepage : http://www.abraxastech.com
Email : [EMAIL PROTECTED]
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