今天客户反馈有一个报表运行超时。
于是登录到系统上，查到运行缓慢报表的对应sql，代码如下：
SELECT f_temp_biz_date AS f_temp_biz_date ,o_id2 AS o_id2 ,
o_id3 AS o_id3 ,
o_id4 AS o_id4 ,
storeChannel_id2 AS storeChannel_id2 ,
storeChannel_id3 AS storeChannel_id3 ,
g_sdlb_item_id AS g_sdlb_item_id ,
sdlb_item_id AS sdlb_item_id ,
MAX(CASE WHEN g_f_unit = 1
AND g_p_brand_id = 1 THEN M000
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2885' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2886' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2887' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2890' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2891' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2892' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2893' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2895' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2896' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2898' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2899' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2900' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2902' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '2983' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11030' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11032' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11033' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11042' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11043' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11044' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11052' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11054' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11055' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11056' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11057' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11058' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11076' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11078' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11080' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11083' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '11207' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '15021' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '15022' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '15023' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '15024' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '15025' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '15026' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '37037' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '46047' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '46048' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '46049' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '46050' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '80093' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '110114' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '110115' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117119' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117120' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117121' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117122' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117123' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117130' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117131' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117132' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117133' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117134' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117135' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117136' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '117137' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '121125' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '121126' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '125162' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '125163' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '127127' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '127128' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '127129' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '127130' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '127131' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '127132' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '127133' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '136139' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND p_brand_id = '136141' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(L)'
AND g_p_brand_id = 1 THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2885' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2886' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2887' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2890' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2891' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2892' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2893' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2895' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2896' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2898' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2899' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2900' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2902' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '2983' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11030' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11032' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11033' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11042' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11043' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11044' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11052' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11054' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11055' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11056' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11057' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11058' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11076' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11078' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11080' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11083' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '11207' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '15021' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '15022' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '15023' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '15024' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '15025' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '15026' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '37037' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '46047' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '46048' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '46049' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '46050' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '80093' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '110114' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '110115' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117119' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117120' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117121' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117122' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117123' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117130' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117131' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117132' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117133' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117134' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117135' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117136' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '117137' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '121125' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '121126' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '125162' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '125163' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '127127' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '127128' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '127129' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '127130' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '127131' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '127132' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '127133' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '136139' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND p_brand_id = '136141' THEN M001
END) ,
MAX(CASE WHEN f_unit = '当月销量(Box)'
AND g_p_brand_id = 1 THEN M001
END)
FROM ( SELECT f.temp_biz_date AS f_temp_biz_date ,
o.id2 AS o_id2 ,
o.id3 AS o_id3 ,
o.id4 AS o_id4 ,
storeChannel.id2 AS storeChannel_id2 ,
storeChannel.id3 AS storeChannel_id3 ,
GROUPING(sdlb.item_id) AS g_sdlb_item_id ,
sdlb.item_id AS sdlb_item_id ,
GROUPING(f.unit) AS g_f_unit ,
f.unit AS f_unit ,
GROUPING(p.brand_id) AS g_p_brand_id ,
p.brand_id AS p_brand_id ,
COUNT(CASE WHEN flag = 'store' THEN f.store_id
END) AS M000 ,
SUM(CASE WHEN flag = 'HL_BOX' THEN HL_BOX
ELSE 0
END) AS M001
FROM ( SELECT r.org_id ,
r.store_id ,
R.LEVEL_ID ,
r.channel_id ,
r.biz_date + '-01' AS biz_date ,
r.biz_date AS temp_biz_date ,
ISNULL(r.prod_id, t.prod_id) AS PROD_ID ,
HL_BOX ,
UNIT ,
flag
FROM TB_RPT_001 r
CROSS APPLY ( SELECT TOP 1
prod_id
FROM TB_PRODUCT WITH ( NOLOCK )
WHERE state = 1
) t
WHERE r.biz_date IN ( '2016-08' )
) f
INNER JOIN STD_TIME t ON f.biz_date = t.the_date
INNER JOIN STD_ORG o ON f.org_id = o.org_id
INNER JOIN STD_STORE s ON f.store_id = s.store_id
LEFT JOIN STD_PRODUCT p ON f.prod_id = p.prod_id
INNER JOIN STD_ITEM storeChannel ON f.channel_id = storeChannel.item_id
INNER JOIN STD_ITEM sdlb ON f.level_id = sdlb.item_id
WHERE ( o.id2 = '516' )
AND ( o.id2 = '516' )
AND ( f.biz_date BETWEEN '2016-08-01' AND '2016-08-31' )
AND ( s.id2 = '516' )
GROUP BY f.temp_biz_date ,
o.id2 ,
o.id3 ,
o.id4 ,
storeChannel.id2 ,
storeChannel.id3 ,
sdlb.item_id ,
f.unit ,
p.brand_id
WITH CUBE
HAVING NOT ( GROUPING(f.temp_biz_date) = 1
OR GROUPING(f.temp_biz_date) = 0
AND GROUPING(o.id2) = 1
OR GROUPING(o.id2) = 0
AND GROUPING(o.id3) = 1
OR GROUPING(o.id3) = 0
AND GROUPING(o.id4) = 1
OR GROUPING(o.id4) = 0
AND GROUPING(storeChannel.id2) = 1
OR GROUPING(storeChannel.id2) = 0
AND GROUPING(storeChannel.id3) = 1
OR GROUPING(sdlb.item_id) = 0
AND GROUPING(storeChannel.id3) = 1
OR GROUPING(storeChannel.id3) = 0
AND GROUPING(storeChannel.id2) = 1
OR GROUPING(storeChannel.id2) = 0
AND GROUPING(o.id4) = 1
OR GROUPING(o.id4) = 0
AND GROUPING(o.id3) = 1
OR GROUPING(o.id3) = 0
AND GROUPING(o.id2) = 1
OR GROUPING(o.id2) = 0
AND GROUPING(f.temp_biz_date) = 1
)
) cr
GROUP BY f_temp_biz_date ,
o_id2 ,
o_id3 ,
o_id4 ,
storeChannel_id2 ,
storeChannel_id3 ,
g_sdlb_item_id ,
sdlb_item_id
ORDER BY f_temp_biz_date ,
o_id2 ,
o_id3 ,
o_id4 ,
storeChannel_id2 ,
storeChannel_id3 ,
g_sdlb_item_id
由于这个语句的外层是由工具生成的，修改不了，所以只能修改这个语句中最内层的的这个sql，能做的优化非常有限，sql语句上没有什么可以调整的。
SELECT r.org_id ,
r.store_id ,
R.LEVEL_ID ,
r.channel_id ,
r.biz_date + '-01' AS biz_date ,
r.biz_date AS temp_biz_date ,
ISNULL(r.prod_id, t.prod_id) AS PROD_ID ,
HL_BOX ,
UNIT ,
flag
FROM TB_RPT_001 r
CROSS APPLY ( SELECT TOP 1
prod_id
FROM TB_PRODUCT WITH ( NOLOCK )
WHERE state = 1
) t
WHERE r.biz_date IN ( '2016-08' )
这个表的基本情况：表中有大概800w条数据，这个查询的8月份，大概有80w的数据。
最开始的速度是170s，创建了索引，但是速度反而更慢了，运行了300s没有出结果。因为这个表会经常删除，在插入，所以把整个表重建了，但是结果还是300s没有出结果。
经过分析发现这个语句之所以这么慢，主要的原因在于语句中的 with cube 造成的，执行计划非常复杂，一眼望不到头实际上在sql server 2008之后可以采用新的cube语句，只对需要的列进行cube计算，但关键是这个外层代码改不了，是工具生成的。。。
下面的图就是这个sql的执行计划，由于这个执行计划太复杂，太大了，所以这个截图只是原始执行计划的5分之1
：
想想还可以试一下，就是修改sql server的服务器参数max degree of parallelism ，就是语句执行的并行度，服务器配置是64个线程，所以把参数值调整为20，也就是可以有20个线程同时运行这个sql。
调整之后，sql运行速度降为10秒
，太棒了