我有这样的查询
(SELECT s1.m as m,IFNULL(s2.y,2013) as y,IFNULL(s2.s,0) as planned FROM
(SELECT 1 as m
UNION SELECT 2
UNION SELECT 3
UNION SELECT 4
UNION SELECT 5
UNION SELECT 6
UNION SELECT 7
UNION SELECT 8
UNION SELECT 9
UNION SELECT 10
UNION SELECT 11
UNION SELECT 12) s1
LEFT JOIN
(SELECT YEAR(p.pdate2) as y,MONTH(p.pdate2) as m, SUM(p.totwdisc) as s FROM pro_partial_inv p WHERE YEAR(p.pdate2)=2013 GROUP BY y,m) s2
ON s1.m=s2.m)
UNION
(SELECT s5.m as m,IFNULL(s3.y,2013) as y,IFNULL(s3.s,0) as realv FROM
(SELECT 1 as m
UNION SELECT 2
UNION SELECT 3
UNION SELECT 4
UNION SELECT 5
UNION SELECT 6
UNION SELECT 7
UNION SELECT 8
UNION SELECT 9
UNION SELECT 10
UNION SELECT 11
UNION SELECT 12) s5
LEFT JOIN
(SELECT YEAR(p.paidd) as y,MONTH(p.paidd) as m, SUM(p.totwdisc) as s FROM pro_partial_inv p WHERE p.status=2 AND YEAR(p.paidd)=2013 GROUP BY y,m) s3
ON s5.m=s3.m)
UNION
(SELECT s6.m as m,IFNULL(s4.y,2013) as y,IFNULL(s4.s,0) as proj FROM
(SELECT 1 as m
UNION SELECT 2
UNION SELECT 3
UNION SELECT 4
UNION SELECT 5
UNION SELECT 6
UNION SELECT 7
UNION SELECT 8
UNION SELECT 9
UNION SELECT 10
UNION SELECT 11
UNION SELECT 12) s6
LEFT JOIN
(SELECT YEAR(p.startd) as y,MONTH(p.startd) as m, SUM(p.disc_n) as s FROM pro_project p WHERE YEAR(p.startd)=2013 GROUP BY y,m) s4
ON s6.m=s4.m)
所以我需要它是这样的:
m y planned
1 2013 0.00
2 2013 0.00
3 2013 0.00
4 2013 0.00
5 2013 0.00
6 2013 908.18
7 2013 0.00
8 2013 1136.36
9 2013 13354.54
10 2013 0.00
11 2013 0.00
12 2013 0.00
1 2013 0.00
2 2013 0.00
3 2013 0.00
4 2013 0.00
5 2013 0.00
6 2013 908.18
7 2013 0.00
8 2013 1136.36
9 2013 13354.54
10 2013 0.00
11 2013 0.00
12 2013 0.00
1 2013 0.00
2 2013 0.00
3 2013 0.00
4 2013 0.00
5 2013 0.00
6 2013 908.18
7 2013 0.00
8 2013 1136.36
9 2013 13354.54
10 2013 0.00
11 2013 0.00
12 2013 0.00
这就像三个看起来非常相似但又不同的工会。m表示月份、y年和计算的计划值。我得到的结果是:
m y planned
1 2013 0.00
2 2013 0.00
3 2013 0.00
4 2013 0.00
5 2013 0.00
6 2013 908.18
7 2013 0.00
8 2013 1136.36
9 2013 13354.54
10 2013 0.00
11 2013 0.00
12 2013 0.00
6 2013 0.00
7 2013 809.09
8 2013 2227.27
9 2013 0.00
7 2013 43600.00
8 2013 41330.00
我做错什么了吗?可能是,但我不确定为什么这里没有进行三次联合,当我分开运行查询时,我得到了很好的结果。
我怀疑在三个"主要"查询之间需要将两个UNION
更改为UNION ALL
。这样可以防止删除重复项。
是!我认为你可以用这样的东西来替换3个内部部分中的每一个
(SELECT s2.m as m,IFNULL(s2.y,2013) as y,IFNULL(s2.s,0) as planned FROM
(SELECT YEAR(p.pdate2) as y,MONTH(p.pdate2) as m, SUM(p.totwdisc) as s FROM pro_partial_inv p WHERE YEAR(p.pdate2)=2013 GROUP BY y,m) s2
WHERE s2.m in (2,3,4,5,6,7,8,9,10,11,12))
甚至这个:
(SELECT s2.m as m,IFNULL(s2.y,2013) as y,IFNULL(s2.s,0) as planned FROM
(SELECT YEAR(p.pdate2) as y,MONTH(p.pdate2) as m, SUM(p.totwdisc) as s FROM pro_partial_inv p WHERE YEAR(p.pdate2)=2013 GROUP BY y,m) s2
WHERE s2.m != 1)
事实上,如果我过于简单化并丢失了一些东西,请纠正我,但我认为你可以将每个内部部分简化为:
SELECT
YEAR(p.pdate2) as y,
MONTH(p.pdate2) as m,
SUM(p.totwdisc) as planned
FROM pro_partial_inv p
WHERE y=2013 AND m != 1
GROUP BY y,m