need help: 2 Left Joins...

[lucia]

I am using vb6 and sql server 2000.

I need join 3 tables Stops, Trans, Comms.
Stops
Left join Trans t on stops.stop_num = trans.stop_num and stops.stopdate = trans.trandate
and stops.route_num = trans.route_num
Where itemid <> "NOPU"

left join Comms on comms.commid = trans.commodity

Where t.TranType = "P"
SUM(Qty) and Sum(Amount) where commodity = C as Tot Cash Pieces PU and Tot Cash Amount PU
SUM(Qty) and Sum(Amount) where comms.code = "BA" or "BO" as Tot Coin Pieces PU and Tot Coin Amount PU

Where t.TranType = "D"
SUM(Qty) and Sum(Amount) where commodity = C as Tot Cash Pieces Del and Tot Cash Amount Del
SUM(Qty) and Sum(Amount) where comms.code = "BA" or "BO" as Tot Coin Pieces Del and Tot Coin Amount Del

I know I need left join Trans and then Trans left join Comms:
I have code like this:

  .......
  strSQL = strSQL & "FROM Stops s  "
  strSQL = strSQL & "Left Join Trans t ON (s.Stop_Num = t.stop_num "
  strSQL = strSQL & "AND s.StopDate = t.TranDate "
  strSQL = strSQL & "AND s.Route_Num = t.Route_Num) "
  ????

How do I write the 2nd left Join?
Thanks a lot.

[cheenu_vasan]

You again continue writing the joining..

Meaning continue ...

left join <table3> t3 on ().....

[Hack]

Moved to Database Development

[lucia]

You again continue writing the joining..

Meaning continue ...

left join <table3> t3 on ().....

Thanks. I added code like this:

strSQL = strSQL & "LEFT JOIN Comms m ON t.Commodity = m.CommId) "

How do I do the SUM(QTY) part?

Thanks again.