Question

The top two are individual results..
the third on is the statement in which i am trying to join another table in it.My problem is i am not able to set the conditions in the sql statement.
In the last join statement i got two columns with Route Id and the sum with Flab=1 but am not able to set the condition in which the flag =0 ..please help
I need T2 as the last column.

Answer 1

SELECT a.RouteCode, 
       SUM(CASE WHEN b.ScheduledFlag = '1' THEN 1 ELSE 0 END) AS T1,
       SUM(CASE WHEN b.ScheduledFlag = '0' THEN 1 ELSE 0 END) AS T2
FROM Routes a inner join CustomerVisits as b on a.RouteCode = b.RouteCode
WHERE b.RouteStartDate = '12/15/2011' 
and a.DepotCode = '6'
group by a.RouteCode

Note that your date format string is potentially ambiguous depending on the locale of you database connection. Use a locale-safe date format like ODBC canonical (yyyy-mm-dd hh:mi:ss)