How to get more than one lack record in 1 or 2 seconds

Question

pls help its urgent ,
i need to retrieve more record from different table it have more than one lack record ,and its more than 20 seconds ,how to minimise the time to one seconds
My sql:
SELECT
tl.ProjectID,
pr.jobname,
name as Department_name,
ChargeNum,
(ac.ActivityCode ||':'||ac.SubCode) as ActivityCodeName,
SUM(HoursWorked), (Case When isBilled=1 or billedRate<>0 then BilledRate else ppr.Rate End) as RATE
FROM
TimeLogEntries tl INNER JOIN activitycodes ac on ac.ACTIVITYCODEID=tl.ACTIVITYCODEID INNER JOIN projectrates ppr on tl.ACTIVITYCODEID = ppr.ACTIVITYCODEID and tl.projectid=ppr.projectid ,
projects pr INNER JOIN departments d on d.DEPARTMENTID =pr.REVENUECENTERID
WHERE
to_char(Date_,'yyyy-mm-dd') BETWEEN '2006-01-01' and '2008-12-30'
AND
tl.ProjectID = pr.ProjectID
Group By
tl.ProjectID,
tl.ActivityCodeID,
BilledRate,
ChargeNum,
pr.jobname,
name,
(ac.ActivityCode ||':'||ac.SubCode),
(Case When isBilled=1 or billedRate<>0 then BilledRate else ppr.Rate End)
ORDER BY
tl.ChargeNum;

Answer 1

hi,
even i am searching for some thing similar.
i want to have 3 calendars in one page.
getting same message calendar already exists on page 2. You can only add one calander per page. Select a different page.
pls help.