如何优化以下具有分组，联接，MIN，MAX，CASES的SQL查询

Question

我编写了以下查询，以便在应用分组，计算，比较后从多个不同的表中将一个表中的结果获取。但是，此查询根本没有经过优化超过2小时才能获取结果。我不是来自开发过程，而是编写此查询以获取一些测试结果。

我尝试使用以下查询

DECLARE @LOCTS1 table (LOCID varchar(70),
                       PERIL varchar(70),
                       ACCGRPID varchar(70),
                       TIV bigint,
                       LIMITAMT bigint,
                       DEDUCTAMT bigint);

INSERT INTO @LOCTS1 (LOCID,
                     PERIL,
                     ACCGRPID,
                     TIV,
                     LIMITAMT,
                     DEDUCTAMT)
SELECT lc.LOCID,
       lc.PERIL,
       p.ACCGRPID,
       SUM(VALUEAMT) AS TIV,
       SUM(LIMITAMT) AS LIMITAMT,
       SUM(DEDUCTAMT) AS DEDUCTAMT
FROM loccvg lc
     JOIN Property p ON lc.LOCID = p.LOCID
GROUP BY lc.LOCID,
         lc.PERIL,
         p.ACCGRPID;

--**Pick SITELIM, SITEDED, COMBINEDLIM, COMBINEDDED for EQDET on location grouped from first joined query**--

DECLARE @LOCTS2 table (LOCID varchar(70),
                       EQSITELIMAMT bigint,
                       EQSITEDEDAMT bigint,
                       EQCOMBINEDLIMAMT bigint,
                       EQCOMBINEDDEDAMT bigint);

INSERT INTO @LOCTS2 (LOCID,
                     EQSITELIMAMT,
                     EQSITEDEDAMT,
                     EQCOMBINEDLIMAMT,
                     EQCOMBINEDDEDAMT)
SELECT LOCID,
       SUM(SITELIMAMT) AS EQSITELIMAMT,
       SUM(SITEDEDAMT) AS EQSITEDEDAMT,
       SUM(COMBINEDLIMAMT) AS EQCOMBINEDLIMAMT,
       SUM(COMBINEDDEDAMT) AS EQCOMBINEDDEDAMT
FROM eqdet
WHERE LOCID IN (SELECT LOCID FROM @LOCTS1)
GROUP BY LOCID;

--**Pick SITELIM, SITEDED, COMBINEDLIM, COMBINEDDED for HUDET on location grouped from first joined query**--

DECLARE @LOCTS3 table (LOCID varchar(70),
                       HUSITELIMAMT bigint,
                       HUSITEDEDAMT bigint,
                       HUCOMBINEDLIMAMT bigint,
                       HUCOMBINEDDEDAMT bigint);

INSERT INTO @LOCTS3 (LOCID,
                     HUSITELIMAMT,
                     HUSITEDEDAMT,
                     HUCOMBINEDLIMAMT,
                     HUCOMBINEDDEDAMT)
SELECT LOCID,
       SUM(SITELIMAMT) AS HUSITELIMAMT,
       SUM(SITEDEDAMT) AS HUSITEDEDAMT,
       SUM(COMBINEDLIMAMT) AS HUCOMBINEDLIMAMT,
       SUM(COMBINEDDEDAMT) AS HUCOMBINEDDEDAMT
FROM hudet
WHERE LOCID IN (SELECT LOCID FROM @LOCTS1)
GROUP BY LOCID;

--**Pick SITELIM, SITEDED, COMBINEDLIM, COMBINEDDED for TODET on location grouped from first joined query**--

DECLARE @LOCTS4 table (LOCID varchar(70),
                       TOSITELIMAMT bigint,
                       TOSITEDEDAMT bigint,
                       TOCOMBINEDLIMAMT bigint,
                       TOCOMBINEDDEDAMT bigint);

INSERT INTO @LOCTS4 (LOCID,
                     TOSITELIMAMT,
                     TOSITEDEDAMT,
                     TOCOMBINEDLIMAMT,
                     TOCOMBINEDDEDAMT)
SELECT LOCID,
       SUM(SITELIMAMT) AS TOSITELIMAMT,
       SUM(SITEDEDAMT) AS TOSITEDEDAMT,
       SUM(COMBINEDLIMAMT) AS TOCOMBINEDLIMAMT,
       SUM(COMBINEDDEDAMT) AS TOCOMBINEDDEDAMT
FROM todet
WHERE LOCID IN (SELECT LOCID FROM @LOCTS1)
GROUP BY LOCID;

--**Pick SITELIM, SITEDED, COMBINEDLIM, COMBINEDDED for FLDET on location grouped from first joined query**--

DECLARE @LOCTS5 table (LOCID varchar(70),
                       FLSITELIMAMT bigint,
                       FLSITEDEDAMT bigint,
                       FLCOMBINEDLIMAMT bigint,
                       FLCOMBINEDDEDAMT bigint);

INSERT INTO @LOCTS5 (LOCID,
                     FLSITELIMAMT,
                     FLSITEDEDAMT,
                     FLCOMBINEDLIMAMT,
                     FLCOMBINEDDEDAMT)
SELECT LOCID,
       SUM(SITELIMAMT) AS FLSITELIMAMT,
       SUM(SITEDEDAMT) AS FLSITEDEDAMT,
       SUM(COMBINEDLIMAMT) AS FLCOMBINEDLIMAMT,
       SUM(COMBINEDDEDAMT) AS FLCOMBINEDDEDAMT
FROM fldet
WHERE LOCID IN (SELECT LOCID FROM @LOCTS1)
GROUP BY LOCID;

--**Pick SITELIM, SITEDED, COMBINEDLIM, COMBINEDDED for FRDET on location grouped from first joined query**--

DECLARE @LOCTS6 table (LOCID varchar(70),
                       FRSITELIMAMT bigint,
                       FRSITEDEDAMT bigint,
                       FRCOMBINEDLIMAMT bigint,
                       FRCOMBINEDDEDAMT bigint);

INSERT INTO @LOCTS6 (LOCID,
                     FRSITELIMAMT,
                     FRSITEDEDAMT,
                     FRCOMBINEDLIMAMT,
                     FRCOMBINEDDEDAMT)
SELECT LOCID,
       SUM(SITELIMAMT) AS FRSITELIMAMT,
       SUM(SITEDEDAMT) AS FRSITEDEDAMT,
       SUM(COMBINEDLIMAMT) AS FRCOMBINEDLIMAMT,
       SUM(COMBINEDDEDAMT) AS FRCOMBINEDDEDAMT
FROM frdet
WHERE LOCID IN (SELECT LOCID FROM @LOCTS1)
GROUP BY LOCID;

--**Pick SITELIM, SITEDED, COMBINEDLIM, COMBINEDDED for TRDET on location grouped from first joined query**--

DECLARE @LOCTS7 table (LOCID varchar(70),
                       TRSITELIMAMT bigint,
                       TRSITEDEDAMT bigint,
                       TRCOMBINEDLIMAMT bigint,
                       TRCOMBINEDDEDAMT bigint);

INSERT INTO @LOCTS7 (LOCID,
                     TRSITELIMAMT,
                     TRSITEDEDAMT,
                     TRCOMBINEDLIMAMT,
                     TRCOMBINEDDEDAMT)
SELECT LOCID,
       SUM(SITELIMAMT) AS TRSITELIMAMT,
       SUM(SITEDEDAMT) AS TRSITEDEDAMT,
       SUM(COMBINEDLIMAMT) AS TRCOMBINEDLIMAMT,
       SUM(COMBINEDDEDAMT) AS TRCOMBINEDDEDAMT
FROM trdet
WHERE LOCID IN (SELECT LOCID FROM @LOCTS1)
GROUP BY LOCID;


--**Final Cmbined table having MAXDED, MINLIM, TIV, PERIL against each ACCGRPID, LOCID, PERIL after comparing**--
--Declare @MINLIM BIGINT
--Declare @MAXDED BIGINT
--Declare @LOCTS8
--table(ACCGRPID varchar(70),PERIL varchar(70),LOCID varchar(70),TIV BIGINT, 
--LOCLIMIT BIGINT, SITELIMAMT BIGINT,COMBINEDLIMAMT BIGINT,
--LOCDED BIGINT, SITEDEDAMT BIGINT,COMBINEDDEDAMT BIGINT)

--Insert into @LOCTS8(ACCGRPID,PERIL,LOCID,TIV,LOCLIMIT,SITELIMAMT,COMBINEDLIMAMT,LOCDED,SITEDEDAMT,COMBINEDDEDAMT) 

SELECT ACCGRPID,
       PERIL,
       lts1.LOCID,
       TIV,
       LIMITAMT AS LOCLIMIT,
       EQSITELIMAMT,
       EQCOMBINEDLIMAMT,
       HUSITELIMAMT,
       HUCOMBINEDLIMAMT,
       TOSITELIMAMT,
       TOCOMBINEDLIMAMT,
       FLSITELIMAMT,
       FLCOMBINEDLIMAMT,
       FRSITELIMAMT,
       FRCOMBINEDLIMAMT,
       TRSITELIMAMT,
       TRCOMBINEDLIMAMT,
       CASE WHEN (DEDUCTAMT <= 1) THEN (TIV * DEDUCTAMT) ELSE DEDUCTAMT END AS LOCDED,
       --EQDED
       CASE WHEN (EQSITEDEDAMT <= 1) THEN (TIV * EQSITEDEDAMT) ELSE EQSITEDEDAMT END AS EQSITEDEDAMT,
       CASE WHEN (EQCOMBINEDDEDAMT <= 1) THEN (TIV * EQCOMBINEDDEDAMT) ELSE EQCOMBINEDDEDAMT END AS EQCOMBINEDDEDAMT,
       --HUDED
       CASE WHEN (HUSITEDEDAMT <= 1) THEN (TIV * HUSITEDEDAMT) ELSE HUSITEDEDAMT END AS HUSITEDEDAMT,
       CASE WHEN (HUCOMBINEDDEDAMT <= 1) THEN (TIV * HUCOMBINEDDEDAMT) ELSE HUCOMBINEDDEDAMT END AS HUCOMBINEDDEDAMT,
       --TODED
       CASE WHEN (TOSITEDEDAMT <= 1) THEN (TIV * TOSITEDEDAMT) ELSE TOSITEDEDAMT END AS TOSITEDEDAMT,
       CASE WHEN (TOCOMBINEDDEDAMT <= 1) THEN (TIV * TOCOMBINEDDEDAMT) ELSE TOCOMBINEDDEDAMT END AS TOCOMBINEDDEDAMT,
       --FLDED
       CASE WHEN (FLSITEDEDAMT <= 1) THEN (TIV * FLSITEDEDAMT) ELSE FLSITEDEDAMT END AS FLSITEDEDAMT,
       CASE WHEN (FLCOMBINEDDEDAMT <= 1) THEN (TIV * FLCOMBINEDDEDAMT) ELSE FLCOMBINEDDEDAMT END AS FLCOMBINEDDEDAMT,
       --FRDED
       CASE WHEN (FRSITEDEDAMT <= 1) THEN (TIV * FRSITEDEDAMT) ELSE FRSITEDEDAMT END AS FRSITEDEDAMT,
       CASE WHEN (FRCOMBINEDDEDAMT <= 1) THEN (TIV * FRCOMBINEDDEDAMT) ELSE FRCOMBINEDDEDAMT END AS FRCOMBINEDDEDAMT,
       --TRDED
       CASE WHEN (TRSITEDEDAMT <= 1) THEN (TIV * TRSITEDEDAMT) ELSE TRSITEDEDAMT END AS TRSITEDEDAMT,
       CASE WHEN (TRCOMBINEDDEDAMT <= 1) THEN (TIV * TRCOMBINEDDEDAMT) ELSE TRCOMBINEDDEDAMT END AS TRCOMBINEDDEDAMT,
       (SELECT MIN(Col)
        FROM (VALUES (LIMITAMT),
                     (EQSITELIMAMT),
                     (EQCOMBINEDLIMAMT),
                     (HUSITELIMAMT),
                     (HUCOMBINEDLIMAMT),
                     (TOSITELIMAMT),
                     (TOCOMBINEDLIMAMT),
                     (FLSITELIMAMT),
                     (FLCOMBINEDLIMAMT),
                     (FRSITELIMAMT),
                     (FRCOMBINEDLIMAMT),
                     (TRSITELIMAMT),
                     (TRCOMBINEDLIMAMT)) X (Col) ) AS MINLIM,
       (SELECT MAX(Col)
        FROM (VALUES (DEDUCTAMT),
                     (EQSITEDEDAMT),
                     (EQCOMBINEDDEDAMT),
                     (HUSITEDEDAMT),
                     (HUCOMBINEDDEDAMT),
                     (TOSITEDEDAMT),
                     (TOCOMBINEDDEDAMT),
                     (FLSITEDEDAMT),
                     (FLCOMBINEDDEDAMT),
                     (FRSITEDEDAMT),
                     (FRCOMBINEDDEDAMT),
                     (TRSITEDEDAMT),
                     (TRCOMBINEDDEDAMT)) X (Col) ) AS MAXDED
FROM @LOCTS1 lts1
     JOIN @LOCTS2 lts2 ON lts1.LOCID = lts2.LOCID
     JOIN @LOCTS3 lts3 ON lts1.LOCID = lts3.LOCID
     JOIN @LOCTS4 lts4 ON lts1.LOCID = lts4.LOCID
     JOIN @LOCTS5 lts5 ON lts1.LOCID = lts5.LOCID
     JOIN @LOCTS6 lts6 ON lts1.LOCID = lts6.LOCID
     JOIN @LOCTS7 lts7 ON lts1.LOCID = lts7.LOCID
ORDER BY 3;

我希望它可以优化并以更快的方式运行。