Hi all,
Suppose I have two tables t1 and t2 defined as following declarative
classes.
There is no foreign key setup in database between these two tables and
I want to write the join statement in sqlalchemy format which equates
to sql like this:
select t1.c11, t1.c12, t2.c23
from t1 join t2
on t1.c11==t2.c21 and
t1.c12==t2.c22 and
t2.c24 > xx;
Anyone could inform me how to achieve this?
class T1(object):
__tablename__ = 't1'
_id = Column('id', Integer, primary_key = True)
c11 = Column('c11', Integer)
c12 = Column('c12', Integer)
class T2(object):
__tablename__ = 't2'
_id = Column('id', Integer, primary_key = True)
c21 = Column('c21', Integer)
c22 = Column('c22', Integer)
c23 = Column('c23', Integer)
c24 = Column('c24', Integer)
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