MySQL - Query combine rows with same id and keep all entry for that id but as one record

Question

I have been working on a table in a mysql database being hold locally on a wamp server I am using the phpmyadmin area with in wamp to run the querys. I am trying to get the data

Answer 1

The problem is that MySQL does not have a good way of enumerating rows. The use of the constant is not guaranteed to work, alas, according to the MySQL documentation. It often does work, but it can also be problematic.

I would suggest that you concatenate the names together into a single field. The result would look like:

1     tree,rose
2     tree
3     tree,bush,rose

Using the SQL:

select plantid, group_concat(name separator ',')
from t
group by plantid

If you really wanted the names in separate columns, two options come to mind. One is to use the results from above and then parse the result into separate strings. The other alternative is to use a self-join and aggregation to calculate a sequential number, like this:

select p.plantid, p.name, count(*) as seqnum
from t p left outer join
     t pprev
     on p.plantid = pprev.plantid and
        p.name >= pprev.name
group by p.plantid, p.name

And use this as the subquery.