MySQL counts the total sales data of each month

MySQL Count the total sales data of each month

 
In a ‘temp’ There is a sales table in the database (bb_sale), The structure is as follows

Field name	type	explain	remarks
F1	Varchar	sales ID
F2	Varchar	Sales date	Date format ：2014-02-14
F3	Varchar	Sales amount

 
The data in the table are as follows
 
(1) Statistics 2014 year 1 to 12 month , Total sales data of each month , The format is as follows ： month 、 amount of money

SELECT b. month ,COALESCE(SUM(a.F3),0) AS  amount of money 
FROM bb_sale a RIGHT JOIN
(
  SELECT '2014-01' AS  month  FROM dual
  union
  SELECT '2014-02' AS  month  FROM dual
   union
  SELECT '2014-03' AS  month  FROM dual
   union
  SELECT '2014-04' AS  month  FROM dual
   union
  SELECT '2014-05' AS  month  FROM dual
   union
  SELECT '2014-06' AS  month  FROM dual
   union
  SELECT '2014-07' AS  month  FROM dual
   union
  SELECT '2014-08' AS  month  FROM dual
   union
  SELECT '2014-09' AS  month  FROM dual
   union
  SELECT '2014-10' AS  month  FROM dual
   union
  SELECT '2014-11' AS  month  FROM dual
   union
  SELECT '2014-12' AS  month  FROM dual
) b
ON LEFT(a.F2,7)=b. month 
GROUP BY b. month 

Running effect :

 
(2) Statistics 2014 year 1 In the 12 Total sales data of the month , The format is as follows ： month 、 amount of money . The months here are a little different , such as 1 Data for the month , Refer to 1 month 15 No. to 2 month 15 Data between numbers , Empathy 2 Data for the month , Refer to 2 month 15 No. to 3 month 15 Data between numbers , And so on .

SELECT '2014-01' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-01-15' AND F2 <'2014-02-15'),0) AS  amount of money 
UNION
SELECT '2014-02' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-02-15' AND F2 <'2014-03-15'),0) AS  amount of money 
UNION
SELECT '2014-03' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-03-15' AND F2 <'2014-04-15'),0) AS  amount of money 
UNION
SELECT '2014-04' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-04-15' AND F2 <'2014-05-15'),0) AS  amount of money 
UNION
SELECT '2014-05' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-05-15' AND F2 <'2014-06-15'),0) AS  amount of money 
UNION
SELECT '2014-06' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-06-15' AND F2 <'2014-07-15'),0) AS  amount of money 
UNION
SELECT '2014-07' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-07-15' AND F2 <'2014-08-15'),0) AS  amount of money 
UNION
SELECT '2014-08' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-08-15' AND F2 <'2014-09-15'),0) AS  amount of money 
UNION
SELECT '2014-09' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-09-15' AND F2 <'2014-09-15'),0) AS  amount of money 
UNION
SELECT '2014-10' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-10-15' AND F2 <'2014-11-15'),0) AS  amount of money 
UNION
SELECT '2014-11' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-11-15' AND F2 <'2014-12-15'),0) AS  amount of money 
UNION
SELECT '2014-12' AS  month ,COALESCE((SELECT SUM(F3) FROM bb_sale WHERE F2>='2014-12-15' AND F2 <='2014-12-31' or F2>='2014-01-01' AND F2<'2014-01-15'),0) AS  amount of money 

Running effect :