Select class_name,
GROUP_CONCAT(DISTINCT cl_date
ORDER BY cl_date DESC SEPARATOR ', ')
(select min(cl_date) from CLASS_DATES where item_id = c.item_id and
cl_date > Now())
From CLASSES c
Join CLASS_DATES cd on (c.item_id = cd.item_id)
Group by class_name, c. item_id
I did not check it in DB and it can have some parse errors.
But It should work.
Best Regards,
Pavel Zimahorau
-----Original Message-----
From: Don Wieland [mailto:d...@pointmade.net]
Sent: Tuesday, February 09, 2016 6:57 PM
To: MySql <mysql@lists.mysql.com>
Subject: Select Earliest Related Row
I have a two tables where I am adding CLASSES and CLASS_DATES for people to
register for.
Table Name = tl_items (Parent)
item_id
class_name
table_name = tl_items_classes (Children)
class_date_id
item_id
cl_date
“tl_items" will have 0 to Many “tl_items_classes" using the “item_id” as the
KEY field.
I am compiling a SELECT query to search the dates of the classes
(tl_items_classes rows), but I need to these two things:
1) Only show the EARLIEST “cl_date" in my returned list (i.e... if a class has
dates for Jan 2,3,4,5,6 2016, only show Jan 2’s row)
2) In that displayed EARLIEST Class Date row, have a column that displays the
complete list of related class dates in ASC order delineated by a COMMA
(Group_Concat()???).
Here is a query I have started off with which show all the dates fine. Just
want to fine tune it.
SELECT ic.*, i.*, DATE_FORMAT(ic.cl_date, "%M %Y") AS mo_label FROM
tl_items_classes ic
LEFT JOIN tl_items i ON ic.item_id = i.item_id
WHERE i.active = 1 AND ic.cl_cancelled IS NULL ORDER BY ic.cl_date ASC;
Any help would be appreciated.
Don Wieland
d...@pointmade.net
http://www.pointmade.net
https://www.facebook.com/pointmade.band
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