SQL Server -이 쿼리를 어떻게 최적화 할 수 있습니까?

Question

이 쿼리는 평균 4 초가 소요됩니다. 저장 프로 시저에서 하위 쿼리가 될 것이므로 잠시 초를 필요로합니다. 다음은 쿼리입니다 :

(select customercampaignname + ' $' + convert(varchar, cast(amount as numeric(36,2))) As 'Check_Stub_Comment2' from (
    select ROW_NUMBER() OVER (ORDER BY amount desc) as rownumber, customercampaignname, amount from (
     select * from (
       select distinct d.customercampaignname 
        ,sum(d.mastercurrencyamount) As amount 

       from bb02_donation d 
         JOIN bb02_donationline dl on d.donationid = dl.donationid 
         JOIN bb02_fundraiserrevenuestream frs on dl.fundraiserrevenuestreamid = frs.fundraiserrevenuestreamid and frs.fundraiserid = 1869 

       where d.customercampaignname is not null 
         and d.customercampaignname != '' 
       group by d.CustomerCampaignName 
     ) as x 
) as sub) as y where rownumber = 1) 

Answer 1

행 번호를 실제로 사용할 필요가없는 경우 TOP 1 행을 가져옵니다. 쿼리가 많이 단순화 될 수 있습니다. 나는 먼저 당신의 술어에 의해 가장 많이 걸러 질 테이블을 선택하는 것으로 시작하고 싶다. frs.fundraiserid와 조인에 참여하는 모든 열에 대한 좋은 인덱스가 있기를 바랍니다.

SELECT 
TOP 2 customercampaignname + ' $' + CONVERT(VARCHAR(255), CAST(SUM(d.mastercurrencyamount) AS NUMERIC(36,2))) AS 'Check_Stub_Comment2', 
ROW_NUMBER() OVER(ORDER BY SUM(d.mastercurrencyamount) DESC) as rownumber 
FROM bb02_fundraiserrevenuestream frs 
JOIN bb02_donationline dl ON 
dl.fundraiserrevenuestreamid = frs.fundraiserrevenuestreamid 
JOIN bb02_donation d ON 
d.donationid = dl.donationid   
WHERE frs.fundraiserid = 1869 
AND d.customercampaignname IS NOT NULL 
AND d.customercampaignname != '' 
GROUP BY d.CustomerCampaignName 
ORDER BY SUM(d.mastercurrencyamount) DESC 

첫 번째 행 또는 두 번째 행을 선택할 수 있어야하므로 CTE 또는 하위 쿼리로 줄 바꿈해야합니다.

WITH topcampaign AS (
SELECT 
TOP 2 customercampaignname + ' $' + CONVERT(varchar(255), CAST(SUM(d.mastercurrencyamount) AS NUMERIC(36,2))) AS 'Check_Stub_Comment2', 
ROW_NUMBER() OVER(ORDER BY SUM(d.mastercurrencyamount) DESC) as rownumber 
FROM bb02_fundraiserrevenuestream frs 
JOIN bb02_donationline dl ON 
dl.fundraiserrevenuestreamid = frs.fundraiserrevenuestreamid 
JOIN bb02_donation d ON 
d.donationid = dl.donationid   
WHERE frs.fundraiserid = 1869 
AND d.customercampaignname IS NOT NULL 
AND d.customercampaignname != '' 
GROUP BY d.CustomerCampaignName 
ORDER BY SUM(d.mastercurrencyamount) DESC 
) 
SELECT * from topcampaign WHERE rownumber = 1 

또 다른 가능한 최적화로서, 나는 CTE에서 CONVERT를 가져 와서 최종 선택에 넣었습니다. 그것이 많은 도움이되는지 확실하지 않습니다.

WITH topcampaign AS (
SELECT 
TOP 2 
customercampaignname, 
SUM(d.mastercurrencyamount) AS amount, 
ROW_NUMBER() OVER(ORDER BY SUM(d.mastercurrencyamount) DESC) as rownumber 
FROM bb02_fundraiserrevenuestream frs 
JOIN bb02_donationline dl ON 
dl.fundraiserrevenuestreamid = frs.fundraiserrevenuestreamid 
JOIN bb02_donation d ON 
d.donationid = dl.donationid   
WHERE frs.fundraiserid = 1869 
AND d.customercampaignname IS NOT NULL 
AND d.customercampaignname != '' 
GROUP BY 
d.CustomerCampaignName 
ORDER BY 
SUM(d.mastercurrencyamount) DESC 
) 
SELECT 
rownumber, 
customercampaignname + ' $' + CONVERT(varchar(255), CAST(amount AS NUMERIC(36,2))) AS 'Check_Stub_Comment2' 
FROM topcampaign 
WHERE rownumber = 1 

Answer 2

이 빠르게 실행한다면 모르겠지만, 내 계산으로이 단순화 될 수있다

Select top 1 customercampaignname + ' $' + convert(varchar(255), cast(sum(d.mastercurrencyamount) as numeric(36,2))) As amount 
from bb02_donation d JOIN 
    bb02_donationline dl 
    on d.donationid = dl.donationid JOIN 
    bb02_fundraiserrevenuestream frs 
    on dl.fundraiserrevenuestreamid = frs.fundraiserrevenuestreamid and frs.fundraiserid = 1869 
where d.customercampaignname is not null and d.customercampaignname != '' 
group by d.CustomerCampaignName 
order by sum(d.mastercurrencyamount) 

Answer 3

이 하나를 취하면 나도 몰라 차이

;WITH cte AS 
(
    select *, ROW_NUMBER() OVER (ORDER BY amount desc) as rownumber 
    from (
     select distinct d.customercampaignname, sum(d.mastercurrencyamount) As amount 
     from bb02_donation d 
     INNER JOIN bb02_donationline dl on d.donationid = dl.donationid 
     INNER JOIN bb02_fundraiserrevenuestream frs on dl.fundraiserrevenuestreamid = frs.fundraiserrevenuestreamid and frs.fundraiserid = 1869 
     where d.customercampaignname is not null 
       and d.customercampaignname != '' 
     group by d.CustomerCampaignName 
    ) as x 
) 
SELECT TOP 1 * 
FROM cte 
ORDER BY RowNumber 

테이블이 당신을 아주 예를 들어, 일을 필터링하기 위해해야 ​​할 경우, 쿼리의 나머지 부분을 할 경우에만 bb02_fundraiserrevenuestream.fundraiserid = 1869 다음 선택할 수 있습니다. 잘 모르겠다. 실행 계획을 시도하고 검토하는 문제 일 수 있습니다.

;WITH Frs AS 
(SELECT dl.fundraiserrevenuestreamid 
    FROM bb02_fundraiserrevenuestream 
    WHERE fundraiserid = 1869 
) 
, cte AS (
    select d.customercampaignname, sum(d.mastercurrencyamount) As amount 
    from Frs 
    INNER JOIN bb02_donationline dl ON dl.fundraiserrevenuestreamid = frs.fundraiserrevenuestreamid 
    INNER JOIN bb02_donation d on d.donationid = dl.donationid 
    where d.customercampaignname is not null 
      and d.customercampaignname != '' 
    group by d.CustomerCampaignName 
) 
SELECT TOP 1 customercampaignname + ' $' + convert(varchar, cast(amount as numeric(36,2))) As 'Check_Stub_Comment2' 
FROM cte 
ORDER BY sum(d.mastercurrencyamount) 

항상 그렇듯이 INDEXES은 이러한 성능 문제의 해결책이 될 수 있습니다.