Thank you so much

I have this problem in mysql database trigger.

I have two tables namely messagein and messageout.

I want to update messageout table when a message received to messagein table.
So I wrote a database trigger in mysql.
I am using wamp-php admin,
Code as follows,

create trigger autoreply after insert on ozekimessagein
FOR each row
begin
DECLARE tel VARCHAR(30);
SELECT @tel=sender FROM ozekimessagein ORDER BY sender DESC limit 1;
INSERT INTO ozekimessageout(receiver,msg,statuss) VALUES (@tel,’Thank you for the
message’,’send’);
end

But when it runs give an mysql server version error.

Can you help me to resolve this matter.

Regards to all
Samantha

Your solution worked for me. Thanks a lot

SELECT TOP 1 Campaign.Camp_ID, Companies.AD_ID, Campaign.CampURL
FROM Companies INNER JOIN (Campaign INNER JOIN CampStats ON Campaign.Camp_ID = CampStats.CampaignID) ON Companies.AD_ID = Campaign.Co_Parent
WHERE (((Campaign.CampActive)=’Yes’))
ORDER BY Rnd(Campaign.Camp_ID);

When this is ran through my ASP code, I get the same freaking ad every single time…it’s the ad with the highest Camp_ID though..

thoughts?

Thanks for the link. I’ll try it out (not that I don’t believe the article) as soon as I can. I’ve been wanting to get around to doing an update on Access, with something similar.

SELECT *
FROM records
ORDER BY (recordID % 5)

In the above query 5 would either be the hour or day, so the records would be in a different order every hour or day. The drawbacks are obviously it’s not frequent randomisation and if a user is paging just before the changeover of hour or day, they will probably see duplicate records.

That would be a bit difficult to do, because everytime you ask SQL for a new page, you’re asking it to select a page of random records. So whats going to stop page 2 from having some of the same records as page 1?

Now, if you want to sort the records randomly, then page through that list, then thats a different story.

Do you have any idea how to implement selecting random records together with sql paging?

Glad I could help though.

SELECT *
FROM Table1
WHERE PrimaryID > =
(
SELECT TOP 1 PrimaryID
FROM Table1
ORDER BY NEWID()
)

Off of the top of my head, If you are using MS SQL 2005, I would suggest picking a random number in code (do a SELECT Count() to get the max number of rows), then select all records that are equal to or greater than that random number using MS SQL 2005’s rownum.

If that doesn’t work for you, then do two select statements.

SELECT TOP 1 [PrimaryID]
FROM Table1
ORDER BY NEWID()

Store the [PrimaryID] and then …

SELECT * FROM
Table1
WHERE [PrimaryID] >= x

where ‘x’ is the PrimaryID from the first statement.

I have another idea, and will post it a bit later.

This info was a bit useful for me, however, my requirement was a bit different from this.

That is I need to generate the random records in MSSQL where in the next random record which is generated should be according to the user’s choice (ie., if a record 4 is generated, then its very next record ie., 5 should come next, and suppose if 8 is generated, then its very next record that is 9 should come next).

If there is any solution for that please do let me know.

Thanks.