Mysql 在vb.net中将月总收入放入图表
Mysql 在vb.net中将月总收入放入图表,mysql,vb.net,Mysql,Vb.net,我查询了一年中每个月的总收入。 我是vb.net和MySQL的新手。如果有人知道给出相同结果的较短查询,请联系我们。 我想画一张图表,其中X表示月份,Y表示总收入。 我的问题是: query = "SELECT ( SELECT SUM(Amount_income_table) FROM bacci.income_table where MONTH(Date_income_table) = '1' )as January, ( SELECT SUM(Amount_income_tab
我查询了一年中每个月的总收入。
我是vb.net和MySQL的新手。如果有人知道给出相同结果的较短查询,请联系我们。
我想画一张图表,其中X表示月份,Y表示总收入。
我的问题是:
query = "SELECT (
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '1'
)as January,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '2'
) AS February,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '3'
)as March,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '4'
) AS April,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '5'
)as May,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '6'
) AS June,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '7'
)as July,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '8'
) AS August,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '9'
)as September,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '10'
) AS October,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '11'
)as November,
(
SELECT SUM(Amount_income_table)
FROM bacci.income_table
where MONTH(Date_income_table) = '12'
) AS December;"
图表的代码为:
Comand = New MySqlCommand(query, connection)
READER = Comand.ExecuteReader
While READER.Read
ChartIncomeYear.Series("Incomes").Points.AddXY(READER.GetString("Date_income_table"), READER.GetInt32("Amount_income_table"))
End While
我使用的是MySQL数据库和Visual Basic 2017。您可以使用
MONTHNAME
函数直接获取月份和组的名称
SELECT SUM(amt), MONTHNAME(amt_date)
FROM income_table
GROUP BY MONTHNAME(amt_date);
差不多吧
由于某些原因,fiddle链接不起作用,下面是完整的代码
CREATE TABLE income_table (amt INT, amt_date DATE);
INSERT INTO income_table
VALUES (12500,'2017-01-01');
INSERT INTO income_table
VALUES (2500,'2017-01-10');
INSERT INTO income_table
VALUES (12500,'2017-02-01');
INSERT INTO income_table
VALUES (3700,'2017-02-08');
INSERT INTO income_table
VALUES (12500,'2017-03-01');
INSERT INTO income_table
VALUES (12500,'2017-04-01');
INSERT INTO income_table
VALUES (12500,'2017-05-01');
INSERT INTO income_table
VALUES (12500,'2017-06-01');
用小提琴看 您可以使用
MONTHNAME
函数直接获取月份名称和组名称
SELECT SUM(amt), MONTHNAME(amt_date)
FROM income_table
GROUP BY MONTHNAME(amt_date);
差不多吧
由于某些原因,fiddle链接不起作用,下面是完整的代码
CREATE TABLE income_table (amt INT, amt_date DATE);
INSERT INTO income_table
VALUES (12500,'2017-01-01');
INSERT INTO income_table
VALUES (2500,'2017-01-10');
INSERT INTO income_table
VALUES (12500,'2017-02-01');
INSERT INTO income_table
VALUES (3700,'2017-02-08');
INSERT INTO income_table
VALUES (12500,'2017-03-01');
INSERT INTO income_table
VALUES (12500,'2017-04-01');
INSERT INTO income_table
VALUES (12500,'2017-05-01');
INSERT INTO income_table
VALUES (12500,'2017-06-01');
用小提琴看 我投票结束这个问题,因为它要求审查。更适合@Codexer我不知道代码审查,我会把我的问题放进去:)谢谢欢迎,很高兴能帮上忙。我投票结束这个问题,因为它要求审查。更适合@Codexer我不知道代码审查,我会把我的问题放进去:)谢谢欢迎,很高兴能帮上忙。谢谢兄弟,查询工作很有魅力:)谢谢兄弟,查询工作很有魅力:)