Question

I am new to SQL. Can someone help to convert this query, so it uses join syntax?

SELECT groups.name,
       users.firstname,
       users.lastname,
       users.emailaddress,
       groupmembers.userid,
       reminders.groupid,
       reminders.ownerid,
       reminderdetails.recno,
       reminderdetails.cardid,
       reminderdetails.message
FROM   reminderdetails,
       reminders,
       groupmembers,
       users,
       groups
WHERE  assocdate = 'Y'
       AND ( reminder1 != 99
             AND ( Datediff(reminderdate, '2011-09-22') = reminder1 )
              OR ( reminder2 != 99
                   AND Datediff(reminderdate, '2011-09-22') = reminder2 ) )
       AND reminders.cardid = reminderdetails.cardid
       AND groupmembers.groupid = reminders.groupid
       AND groupmembers.sendemail = 'Y'
       AND users.recno = groupmembers.userid
       AND groups.recno = reminders.groupid

Answer 1

Try this:

SELECT g.name,
       uu.firstname,
       uu.lastname,
       uu.emailaddress,
       gp.userid,
       rm.groupid,
       rm.ownerid,
       rd.recno,
       rd.cardid,
       rd.message
FROM   reminderdetails rd
JOIN   reminders rm on rm.cardid=rd.cardId
JOIN   groupmembers gp on gp.groupid=rm.groupId and gp.sendemail='Y'
JOIN   users uu on uu.recNo=gp.userId,
JOIN   groups g ON g.recno=rm.groupId
WHERE  assocdate = 'Y'
       AND ( reminder1 != 99
             AND ( Datediff(reminderdate, '2011-09-22') = reminder1 )
              OR ( reminder2 != 99
                   AND Datediff(reminderdate, '2011-09-22') = reminder2 ) )