SQL Server - 2008 : Nested Select, need improve execution faster? - sql

Question

Here the problem:
First I have a nested query, for which I need to improve the execution time and make it faster. Imagine 47 seconds at first time and second time was 46 / 45 second. Second was running by cache (the second execution always faster than first time but not this).
Second that query uses SUM, CAST, CASE in each sub select. Can't dodge that
Third I read some another solution from internet using OPTION (FAST 500).
Here the example :
SELECT [cutomerSection],
SUM(DEBIT) AS DEBIT,
SUM(CREDIT) AS CREDIT,
SUM([OTHERS]) AS 'OTHERS'
FROM
(-- SECTOR A
SELECT cb.paymentGrp AS 'cutomerSection',
CASE
WHEN j.paymentStat = 'DEBIT' THEN SUM(CAST(ISNULL(isnull(qty, 1)*(100-disc)*d.adm/100, 0) AS INT)) + SUM(CAST(ISNULL(isnull(qty, 1)*(100-disc)*(d.fee-d.adm)/100, 0) AS INT))
ELSE 0
END AS 'DEBIT',
CASE
WHEN j.paymentStat = 'CREDIT' THEN SUM(CAST(ISNULL(isnull(qty, 1)*(100-disc)*d.adm/100, 0) AS INT)) + SUM(CAST(ISNULL(isnull(qty, 1)*(100-disc)*(d.fee-d.adm)/100, 0) AS INT))
ELSE 0
END AS 'CREDIT',
CASE
WHEN (j.paymentStat = ''
OR j.paymentStat IS NULL) THEN SUM(CAST(ISNULL(isnull(qty, 1)*(100-disc)*d.adm/100, 0) AS INT)) + SUM(CAST(ISNULL(isnull(qty, 1)*(100-disc)*(d.fee-d.adm)/100, 0) AS INT))
ELSE 0
END AS 'OTHERS'
FROM tbactDetail d WITH(NOLOCK)
LEFT JOIN tbsectorSection j WITH(NOLOCK) ON d.tranCode = j.tranCode
LEFT JOIN tbact t ON (d.actCode=t.actCode
AND t.sectorCode = j.sectorCode)
LEFT JOIN tbCustomer c WITH(NOLOCK) ON c.custCode=j.custCode
LEFT JOIN tbfrontDesk a WITH(NOLOCK) ON a.struckNo=j.struk
LEFT JOIN tbpaymentList cb WITH(NOLOCK) ON cb.paymentK = a.paymentK
LEFT JOIN tbleading dc ON dc.leadCode = j.leadCode
LEFT JOIN tbsector p ON j.sectorCode = p.sectorCode
WHERE (j.deleted IS NULL
OR j.deleted = 0)
AND a.status = 'FINISH'
AND (j.tranDate BETWEEN '2018-11-01 00:00:00' AND '2018-11-01 23:59:59')
GROUP BY cb.paymentGrp,
j.paymentStat
UNION ALL -- SECTOR PARK
SELECT cb.paymentGrp AS 'cutomerSection',
CASE
WHEN t.paymentStat = 'DEBIT' THEN SUM(CAST(isnull(d.rate*d.qty*(100-disc)/100, 0) AS INT))
ELSE 0
END AS 'DEBIT',
CASE
WHEN t.paymentStat = 'CREDIT' THEN SUM(CAST(isnull(d.rate*d.qty*(100-disc)/100, 0) AS INT))
ELSE 0
END AS 'CREDIT',
CASE
WHEN (t.paymentStat = ''
OR t.paymentStat IS NULL) THEN SUM(CAST(isnull(d.rate*d.qty*(100-disc)/100, 0) AS INT))
ELSE 0
END AS 'OTHERS'
FROM tbparkDetail d
LEFT JOIN tbTranPark t ON d.tranCode = t.tranCode
JOIN tbsectorSection j ON t.strukPoli = j.struk
LEFT JOIN tbCustomer c WITH(NOLOCK) ON c.custCode=j.custCode
LEFT JOIN tbfrontDesk a WITH(NOLOCK) ON a.struckNo=j.struk
JOIN tbpaymentList cb ON a.paymentK = cb.paymentK
LEFT JOIN tbleading dc ON dc.leadCode=j.leadCode
LEFT JOIN tbsector p ON j.sectorCode=p.sectorCode
WHERE (j.deleted IS NULL
OR j.deleted=0)
AND (t.strukPoli IS NOT NULL
OR t.strukPoli <> ''
OR t.strukPoli <> '--')
AND a.status = 'FINISH'
AND (j.tranDate BETWEEN '2018-11-01 00:00:00' AND '2018-11-01 23:59:59')
GROUP BY cb.paymentGrp,
t.paymentStat
UNION ALL -- SECTOR FRONT
SELECT cb.paymentGrp AS 'cutomerSection',
CASE
WHEN t.paymentStat = 'DEBIT' THEN SUM(CAST(isnull(d.rate*(100-disc)/100, 0) AS INT))
ELSE 0
END AS 'DEBIT',
CASE
WHEN t.paymentStat = 'CREDIT' THEN SUM(CAST(isnull(d.rate*(100-disc)/100, 0) AS INT))
ELSE 0
END AS 'CREDIT',
CASE
WHEN (t.paymentStat = ''
OR t.paymentStat IS NULL) THEN SUM(CAST(isnull(d.rate*(100-disc)/100, 0) AS INT))
ELSE 0
END AS 'OTHERS'
FROM tbDetailRadioterapi d
LEFT JOIN tbtranFront t ON d.tranCode = t.tranCode
LEFT JOIN tbsectorSection j ON t.strukPoli = j.struk
LEFT JOIN tbCustomer c WITH(NOLOCK) ON c.custCode=j.custCode
LEFT JOIN tbfrontDesk a WITH(NOLOCK) ON a.struckNo = j.struk
LEFT JOIN tbpaymentList cb ON a.paymentK = cb.paymentK
LEFT JOIN tbleading dc ON dc.leadCode=j.leadCode
LEFT JOIN tbsector p ON j.sectorCode=p.sectorCode
WHERE (t.deleted IS NULL
OR t.deleted=0)
AND (strukPoli IS NOT NULL
OR strukPoli <>''
OR strukPoli <>'--')
AND a.status='FINISH'
AND (j.tranDate BETWEEN '2018-11-01 00:00:00' AND '2018-11-01 23:59:59')
GROUP BY cb.paymentGrp,
t.paymentStat) AS a
GROUP BY [cutomerSection]
Third using option (fast 500), I don't know why but always got error :
Incorect Syntax near OPTION
PS : Sorry for my bad English