计算月份之间的总差
Calculating grand total difference between months
我在下面添加了 3 个 table 作为示例。我想获得连续月份之间总计的变化（即 1 月和 2 月之间的 grand_total 差异）。
下面的查询给了我附加的结果，但我必须为接下来的每个月添加一行新代码。除此之外，它还为每个总计变化创建一个新列。
opps_id_c：指opps_id机会table
contract_id_c：指合约tablecontract_id
如何优化查询？
任何帮助将不胜感激！
Table：发票
+-------------+------------+-----------+---------------+
| issued_date | invoice_id | opps_id_c | contract_id_c |
+-------------+------------+-----------+---------------+
| 1/31/2019 | 6235 | 1235 | 2211 |
| 3/31/2019 | 6235 | 1235 | 2211 |
| 3/31/2019 | 6235 | 1235 | 2211 |
| 1/31/2019 | 6235 | 1235 | 2211 |
| 4/30/2019 | 6235 | 1235 | 2211 |
| 5/31/2019 | 6235 | 1235 | 2211 |
| 6/30/2019 | 6235 | 1235 | 2211 |
| 6/30/2019 | 6235 | 1235 | 2211 |
| 2/28/2019 | 6235 | 1235 | 2211 |
| 2/28/2019 | 6235 | 1235 | 2211 |
+-------------+------------+-----------+---------------+
Table：机会
+---------+-------------+
| opps_id | grand_total |
+---------+-------------+
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
+---------+-------------+
Table：合约
+-------------+-------------+
| contract_id | grand_total |
+-------------+-------------+
| 2211 | 396 |
| 2211 | 396 |
| 2211 | 396 |
| 2211 | 460 |
| 2211 | 460 |
| 2211 | 396 |
| 2211 | 460 |
| 2211 | 169 |
| 2211 | 396 |
| 2211 | 169 |
+-------------+-------------+
我的查询：
SELECT
SUM(t3.var_jan_feb) AS var_jan_feb,
SUM(t3.var_feb_mar) AS var_feb_mar,
SUM(t3.var_mar_apr) AS var_mar_apr,
SUM(t3.var_apr_may) AS var_apr_may,
SUM(t3.var_may_jun) AS var_may_jun,
SUM(t3.var_jun_jul) AS var_jun_jul,
SUM(t3.var_jul_aug) AS var_jul_aug,
SUM(t3.var_aug_sept) AS var_aug_sept,
SUM(t3.var_sept_oct) AS var_sept_oct,
SUM(t3.var_oct_nov) AS var_oct_nov
FROM
(SELECT
t2.opps_id_c,
SUM(contract_jan) AS contract_jan,
CASE WHEN SUM(contract_jan) <> 0 AND SUM(contract_feb) <> 0 THEN SUM(contract_feb) - SUM(contract_jan)
ELSE 0 END AS var_jan_feb,
SUM(contract_feb) AS contract_feb,
CASE WHEN SUM(contract_feb) <> 0 AND SUM(contract_mar) <> 0 THEN SUM(contract_mar) - SUM(contract_feb)
ELSE 0 END AS var_feb_mar,
SUM(contract_mar) AS contract_mar,
CASE WHEN SUM(contract_mar) <> 0 AND SUM(contract_apr) <> 0 THEN SUM(contract_apr) - SUM(contract_mar)
ELSE 0 END AS var_mar_apr,
SUM(contract_apr) AS contract_apr,
CASE WHEN SUM(contract_apr) <> 0 AND SUM(contract_may) <> 0 THEN SUM(contract_may) - SUM(contract_apr)
ELSE 0 END AS var_apr_may,
SUM(contract_may) AS contract_may,
CASE WHEN SUM(contract_may) <> 0 AND SUM(contract_june) <> 0 THEN SUM(contract_june) - SUM(contract_may)
ELSE 0 END AS var_may_jun,
SUM(contract_june) AS contract_june,
CASE WHEN SUM(contract_june) <> 0 AND SUM(contract_july) <> 0 THEN SUM(contract_july) - SUM(contract_june)
ELSE 0 END AS var_jun_jul,
SUM(contract_july) AS contract_july,
CASE WHEN SUM(contract_july) <> 0 AND SUM(contract_aug) <> 0 THEN SUM(contract_aug) - SUM(contract_july)
ELSE 0 END AS var_jul_aug,
SUM(contract_aug) AS contract_aug,
CASE WHEN SUM(contract_aug) <> 0 AND SUM(contract_sept) <> 0 THEN SUM(contract_sept) - SUM(contract_aug)
ELSE 0 END AS var_aug_sept,
SUM(contract_sept) AS contract_sept,
CASE WHEN SUM(contract_sept) <> 0 AND SUM(contract_oct) <> 0 THEN SUM(contract_oct) - SUM(contract_sept)
ELSE 0 END AS var_sept_oct,
SUM(contract_oct) AS contract_oct,
CASE WHEN SUM(contract_oct) <> 0 AND SUM(contract_nov2019) <> 0 THEN SUM(contract_nov) - SUM(contract_oct)
ELSE 0 END AS var_oct_nov,
SUM(contract_nov) AS contract_nov
FROM
(SELECT -- grand total contract per month for each opps
t1.opps_id_c,
t1.issued_date,
CASE WHEN t1.issued_date = '2019-01-31' THEN t1.contract_grand_total ELSE 0 END AS contract_jan,
CASE WHEN t1.issued_date = '2019-02-28' THEN t1.contract_grand_total ELSE 0 END AS contract_feb,
CASE WHEN t1.issued_date = '2019-03-31' THEN t1.contract_grand_total ELSE 0 END AS contract_mar,
CASE WHEN t1.issued_date = '2019-04-30' THEN t1.contract_grand_total ELSE 0 END AS contract_apr,
CASE WHEN t1.issued_date = '2019-05-31' THEN t1.contract_grand_total ELSE 0 END AS contract_may,
CASE WHEN t1.issued_date = '2019-06-30' THEN t1.contract_grand_total ELSE 0 END AS contract_june,
CASE WHEN t1.issued_date = '2019-07-31' THEN t1.contract_grand_total ELSE 0 END AS contract_july,
CASE WHEN t1.issued_date = '2019-08-31' THEN t1.contract_grand_total ELSE 0 END AS contract_aug,
CASE WHEN t1.issued_date = '2019-09-30' THEN t1.contract_grand_total ELSE 0 END AS contract_sept,
CASE WHEN t1.issued_date = '2019-10-31' THEN t1.contract_grand_total ELSE 0 END AS contract_oct,
CASE WHEN t1.issued_date = '2019-11-30' THEN t1.contract_grand_total ELSE 0 END AS contract_nov
FROM
(SELECT
i.invoice_id,
i.amount,
i.opps_id_c,
o.grand_total AS opps_grand_total,
i.issued_date,
i.contract_id_c,
c.grand_total AS contract_grand_total
FROM
db.invoice i
LEFT JOIN db.opps o ON
i.opps_id_c = o.opps_id
LEFT JOIN db.contract c ON
i.contract_id_c = c.contract_id
) AS t1) AS t2
WHERE
(contract_nov > 0
OR contract_dec > 0
OR contract_jan > 0
OR contract_feb > 0
OR contract_mar > 0
OR contract_apr > 0
OR contract_may > 0
OR contract_june > 0
OR contract_july > 0
OR contract_aug > 0
OR contract_sept > 0
OR contract_oct > 0
OR contract_nov2019 > 0)
GROUP BY
t2.opps_id_c) AS t3
查询结果：
SELECT issued_date,zeroifnull(total-lag(total) OVER (PARTITION BY issued_date ASC)) var
FROM (
SELECT issued_date, sum(o.grand_total+c.grand_total) total
FROM Invoice i
LEFT JOIN Opportunities o
ON i.opps_id_c=o.opps_id
LEFT JOIN Contract c
ON i.contract_id_c=c.contract_id
GROUP BY 1
) t
我在下面添加了 3 个 table 作为示例。我想获得连续月份之间总计的变化（即 1 月和 2 月之间的 grand_total 差异）。
下面的查询给了我附加的结果，但我必须为接下来的每个月添加一行新代码。除此之外，它还为每个总计变化创建一个新列。
opps_id_c：指opps_id机会table
contract_id_c：指合约tablecontract_id
如何优化查询？ 任何帮助将不胜感激！
Table：发票
+-------------+------------+-----------+---------------+
| issued_date | invoice_id | opps_id_c | contract_id_c |
+-------------+------------+-----------+---------------+
| 1/31/2019 | 6235 | 1235 | 2211 |
| 3/31/2019 | 6235 | 1235 | 2211 |
| 3/31/2019 | 6235 | 1235 | 2211 |
| 1/31/2019 | 6235 | 1235 | 2211 |
| 4/30/2019 | 6235 | 1235 | 2211 |
| 5/31/2019 | 6235 | 1235 | 2211 |
| 6/30/2019 | 6235 | 1235 | 2211 |
| 6/30/2019 | 6235 | 1235 | 2211 |
| 2/28/2019 | 6235 | 1235 | 2211 |
| 2/28/2019 | 6235 | 1235 | 2211 |
+-------------+------------+-----------+---------------+
Table：机会
+---------+-------------+
| opps_id | grand_total |
+---------+-------------+
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
| 1235 | 460 |
+---------+-------------+
Table：合约
+-------------+-------------+
| contract_id | grand_total |
+-------------+-------------+
| 2211 | 396 |
| 2211 | 396 |
| 2211 | 396 |
| 2211 | 460 |
| 2211 | 460 |
| 2211 | 396 |
| 2211 | 460 |
| 2211 | 169 |
| 2211 | 396 |
| 2211 | 169 |
+-------------+-------------+
我的查询：
SELECT
SUM(t3.var_jan_feb) AS var_jan_feb,
SUM(t3.var_feb_mar) AS var_feb_mar,
SUM(t3.var_mar_apr) AS var_mar_apr,
SUM(t3.var_apr_may) AS var_apr_may,
SUM(t3.var_may_jun) AS var_may_jun,
SUM(t3.var_jun_jul) AS var_jun_jul,
SUM(t3.var_jul_aug) AS var_jul_aug,
SUM(t3.var_aug_sept) AS var_aug_sept,
SUM(t3.var_sept_oct) AS var_sept_oct,
SUM(t3.var_oct_nov) AS var_oct_nov
FROM
(SELECT
t2.opps_id_c,
SUM(contract_jan) AS contract_jan,
CASE WHEN SUM(contract_jan) <> 0 AND SUM(contract_feb) <> 0 THEN SUM(contract_feb) - SUM(contract_jan)
ELSE 0 END AS var_jan_feb,
SUM(contract_feb) AS contract_feb,
CASE WHEN SUM(contract_feb) <> 0 AND SUM(contract_mar) <> 0 THEN SUM(contract_mar) - SUM(contract_feb)
ELSE 0 END AS var_feb_mar,
SUM(contract_mar) AS contract_mar,
CASE WHEN SUM(contract_mar) <> 0 AND SUM(contract_apr) <> 0 THEN SUM(contract_apr) - SUM(contract_mar)
ELSE 0 END AS var_mar_apr,
SUM(contract_apr) AS contract_apr,
CASE WHEN SUM(contract_apr) <> 0 AND SUM(contract_may) <> 0 THEN SUM(contract_may) - SUM(contract_apr)
ELSE 0 END AS var_apr_may,
SUM(contract_may) AS contract_may,
CASE WHEN SUM(contract_may) <> 0 AND SUM(contract_june) <> 0 THEN SUM(contract_june) - SUM(contract_may)
ELSE 0 END AS var_may_jun,
SUM(contract_june) AS contract_june,
CASE WHEN SUM(contract_june) <> 0 AND SUM(contract_july) <> 0 THEN SUM(contract_july) - SUM(contract_june)
ELSE 0 END AS var_jun_jul,
SUM(contract_july) AS contract_july,
CASE WHEN SUM(contract_july) <> 0 AND SUM(contract_aug) <> 0 THEN SUM(contract_aug) - SUM(contract_july)
ELSE 0 END AS var_jul_aug,
SUM(contract_aug) AS contract_aug,
CASE WHEN SUM(contract_aug) <> 0 AND SUM(contract_sept) <> 0 THEN SUM(contract_sept) - SUM(contract_aug)
ELSE 0 END AS var_aug_sept,
SUM(contract_sept) AS contract_sept,
CASE WHEN SUM(contract_sept) <> 0 AND SUM(contract_oct) <> 0 THEN SUM(contract_oct) - SUM(contract_sept)
ELSE 0 END AS var_sept_oct,
SUM(contract_oct) AS contract_oct,
CASE WHEN SUM(contract_oct) <> 0 AND SUM(contract_nov2019) <> 0 THEN SUM(contract_nov) - SUM(contract_oct)
ELSE 0 END AS var_oct_nov,
SUM(contract_nov) AS contract_nov
FROM
(SELECT -- grand total contract per month for each opps
t1.opps_id_c,
t1.issued_date,
CASE WHEN t1.issued_date = '2019-01-31' THEN t1.contract_grand_total ELSE 0 END AS contract_jan,
CASE WHEN t1.issued_date = '2019-02-28' THEN t1.contract_grand_total ELSE 0 END AS contract_feb,
CASE WHEN t1.issued_date = '2019-03-31' THEN t1.contract_grand_total ELSE 0 END AS contract_mar,
CASE WHEN t1.issued_date = '2019-04-30' THEN t1.contract_grand_total ELSE 0 END AS contract_apr,
CASE WHEN t1.issued_date = '2019-05-31' THEN t1.contract_grand_total ELSE 0 END AS contract_may,
CASE WHEN t1.issued_date = '2019-06-30' THEN t1.contract_grand_total ELSE 0 END AS contract_june,
CASE WHEN t1.issued_date = '2019-07-31' THEN t1.contract_grand_total ELSE 0 END AS contract_july,
CASE WHEN t1.issued_date = '2019-08-31' THEN t1.contract_grand_total ELSE 0 END AS contract_aug,
CASE WHEN t1.issued_date = '2019-09-30' THEN t1.contract_grand_total ELSE 0 END AS contract_sept,
CASE WHEN t1.issued_date = '2019-10-31' THEN t1.contract_grand_total ELSE 0 END AS contract_oct,
CASE WHEN t1.issued_date = '2019-11-30' THEN t1.contract_grand_total ELSE 0 END AS contract_nov
FROM
(SELECT
i.invoice_id,
i.amount,
i.opps_id_c,
o.grand_total AS opps_grand_total,
i.issued_date,
i.contract_id_c,
c.grand_total AS contract_grand_total
FROM
db.invoice i
LEFT JOIN db.opps o ON
i.opps_id_c = o.opps_id
LEFT JOIN db.contract c ON
i.contract_id_c = c.contract_id
) AS t1) AS t2
WHERE
(contract_nov > 0
OR contract_dec > 0
OR contract_jan > 0
OR contract_feb > 0
OR contract_mar > 0
OR contract_apr > 0
OR contract_may > 0
OR contract_june > 0
OR contract_july > 0
OR contract_aug > 0
OR contract_sept > 0
OR contract_oct > 0
OR contract_nov2019 > 0)
GROUP BY
t2.opps_id_c) AS t3
查询结果：
SELECT issued_date,zeroifnull(total-lag(total) OVER (PARTITION BY issued_date ASC)) var
FROM (
SELECT issued_date, sum(o.grand_total+c.grand_total) total
FROM Invoice i
LEFT JOIN Opportunities o
ON i.opps_id_c=o.opps_id
LEFT JOIN Contract c
ON i.contract_id_c=c.contract_id
GROUP BY 1
) t