I am not the most awesome SQL person and as such I am having trouble
constructing a query I need.
I have two tables in a database called "old". The parent table is called
"members" and there is a child table called "courses".
#--------
old.define_table('members',
Field('id'),
Field('profile_id','string'),
Field('title','string'),
Field('firstname','string'),
Field('surname','string'),
Field('memberlevel','string'),
Field('lawfirm','string'),
Field('registerdate','date'),
Field('expirydate','date'),
Field('email','string'),
Field('telno','string'),
Field('address1','string'),
Field('address2','string'),
Field('address3','string'),
Field('town','string'),
Field('county','string'),
Field('postcode','string'),
Field('country','string'),
Field('notes','text'),
Field('memberstatus','string'),
migrate=False)
old.define_table('courses',
Field('memberid',type='reference members',),
Field('profile_id','string'),
Field('course','string'),
Field('enroldate','string'),
migrate=False)
I would like to select all records in the members table that are not
referenced by records in the courses table. I suppose it could be described
as the opposite of a join as I only want to select members that do not have
courses attached to them.
Any help would be appreciated.
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