MySQL統計同比環比SQL

大體思路：

MySQL沒有類似oracle方便的統計函數，只能靠自己去硬計算：通過時間字段直接增加年份、月份，然后通過left join關聯時間字段去計算環比、同比公式即可

原始表結構：

求同比SQL：

-- 按年同比

SELECT t5.*, CASE WHEN t5.last_energy_year IS NULL OR t5.last_energy_year =0 THEN 0.00
                ELSE FORMAT(((t5.energy_year - t5.last_energy_year)/t5.last_energy_year)*100,2)
        END YoY  -- 同比
FROM (
   SELECT t3.*,t4.last_energy_year
    FROM
    (
       SELECT DATE_FORMAT(CONCAT(t1.`tyear`, '-', t1.`tmonth`,'-01'),'%Y-%m-%d') AS YearMonth,t1.tyear,SUM(t1.energy_month) energy_year,t1.linename
        FROM(SELECT
        t.*,COUNT(DISTINCT t.`tyear`,t.`tmonth`,t.`linename`) c_cot
        FROM `ksh_tgyjy_llxgyjydlxx` t
        GROUP BY t.`linename`,t.`tyear`,t.`tmonth`,t.`linename`) t1
        GROUP BY t1.tyear,t1.`linename`
     ) t3
      LEFT JOIN
    (
      SELECT DATE_ADD(DATE_FORMAT(CONCAT(t1.`tyear`, '-', t1.`tmonth`,'-01'),'%Y-%m-%d'),INTERVAL 1 YEAR) AS lastYearMonth,t1.tyear,SUM(t1.energy_month) last_energy_year,t1.linename
        FROM(SELECT t.*,COUNT(DISTINCT t.`tyear`,t.`tmonth`,t.`linename`) c_cot
        FROM `ksh_tgyjy_llxgyjydlxx` t
        GROUP BY t.`linename`,t.`tyear`,t.`tmonth`,t.`linename`) t1
        GROUP BY t1.tyear,t1.`linename`
    ) t4
    ON t3.YearMonth = t4.lastYearMonth
    AND t3.linename = t4.linename
) t5

-- 按年同比
SELECT t5., CASE WHEN t5.last_energy_year IS NULL OR t5.last_energy_year =0 THEN 0.00
                 ELSE FORMAT(((t5.energy_year - t5.last_energy_year)/t5.last_energy_year)100,2)

        END YoY  -- 同比

FROM (

   SELECT t3.,t4.last_energy_year
     FROM
     (
        SELECT DATE_FORMAT(CONCAT(t1.tyear, '-', t1.tmonth,'-01'),'%Y-%m-%d') AS YearMonth,t1.tyear,SUM(t1.energy_month) energy_year,t1.linename
         FROM(SELECT
         t.,COUNT(DISTINCT t.tyear,t.tmonth,t.linename) c_cot

        FROM ksh_tgyjy_llxgyjydlxx t

        GROUP BY t.linename,t.tyear,t.tmonth,t.linename) t1

        GROUP BY t1.tyear,t1.linename

     ) t3

      LEFT JOIN

    (

      SELECT DATE_ADD(DATE_FORMAT(CONCAT(t1.tyear, '-', t1.tmonth,'-01'),'%Y-%m-%d'),INTERVAL 1 YEAR) AS lastYearMonth,t1.tyear,SUM(t1.energy_month) last_energy_year,t1.linename

        FROM(SELECT t.,COUNT(DISTINCT t.tyear,t.tmonth,t.linename) c_cot
         FROM ksh_tgyjy_llxgyjydlxx t
         GROUP BY t.linename,t.tyear,t.tmonth,t.linename) t1
         GROUP BY t1.tyear,t1.linename
     ) t4
     ON t3.YearMonth = t4.lastYearMonth
     AND t3.linename = t4.linename
 ) t5
 

查詢結果：

求月環比SQL：

-- 按月同比

SELECT DATE_FORMAT(t5.YearMonth,'%Y-%m') YearMonth,t5.linename,t5.energy_month,
         CASE WHEN t5.lat_energy_month IS NULL OR t5.lat_energy_month=0 THEN 0.00
                 ELSE FORMAT(((t5.energy_month - t5.lat_energy_month)/t5.lat_energy_month)100,2)
        END YoY
FROM (
   SELECT t3.,t4.energy_month lat_energy_month
     FROM
    (
      SELECT DATE_FORMAT(CONCAT(t1.tyear, '-', t1.tmonth,'-01'),'%Y-%m-%d') AS YearMonth,t1.
        FROM(SELECT
          t.,COUNT(DISTINCT t.tyear,t.tmonth,t.linename) c_cot
          FROM ksh_tgyjy_llxgyjydlxx t
          GROUP BY t.linename,t.tyear,t.tmonth,t.linename) t1
     ) t3
       LEFT JOIN
    (
      SELECT DATE_ADD(DATE_FORMAT(CONCAT(t1.tyear, '-', t1.tmonth,'-01'),'%Y-%m-%d'),INTERVAL 1 YEAR) AS lastYearMonth,t1.
        FROM(SELECT t.*,COUNT(DISTINCT t.tyear,t.tmonth,t.linename) c_cot
        FROM ksh_tgyjy_llxgyjydlxx t
        GROUP BY t.linename,t.tyear,t.tmonth,t.linename) t1
    ) t4
    ON t3.YearMonth = t4.lastYearMonth
    AND t3.linename = t4.linename
) t5

-- 按月同比

SELECT DATE_FORMAT(t5.YearMonth,'%Y-%m') YearMonth,t5.linename,t5.energy_month,

         CASE WHEN t5.lat_energy_month IS NULL OR t5.lat_energy_month=0 THEN 0.00

                 ELSE FORMAT(((t5.energy_month - t5.lat_energy_month)/t5.lat_energy_month)100,2)
         END YoY
 FROM (
    SELECT t3.,t4.energy_month lat_energy_month

     FROM

    (

      SELECT DATE_FORMAT(CONCAT(t1.tyear, '-', t1.tmonth,'-01'),'%Y-%m-%d') AS YearMonth,t1.*

        FROM(SELECT

          t.,COUNT(DISTINCT t.tyear,t.tmonth,t.linename) c_cot
           FROM ksh_tgyjy_llxgyjydlxx t
           GROUP BY t.linename,t.tyear,t.tmonth,t.linename) t1
      ) t3
        LEFT JOIN
     (
       SELECT DATE_ADD(DATE_FORMAT(CONCAT(t1.tyear, '-', t1.tmonth,'-01'),'%Y-%m-%d'),INTERVAL 1 YEAR) AS lastYearMonth,t1.

        FROM(SELECT t.*,COUNT(DISTINCT t.tyear,t.tmonth,t.linename) c_cot

        FROM ksh_tgyjy_llxgyjydlxx t

        GROUP BY t.linename,t.tyear,t.tmonth,t.linename) t1

    ) t4

    ON t3.YearMonth = t4.lastYearMonth

    AND t3.linename = t4.linename

) t5

查詢結果：