Php 连接两条语句的SQL语句
我没有发现任何SQL连接问题有这么大,这就是问题所在:我有两个SQL语句,一个将资金分为不同的组,另一个将在这些组中花费的资金分为不同的组,我如何将它们连接在一起,以便将“预算”和“费用”显示在一起? 基本上,没有部门,资金类别,预算和部门,资金类别,费用表,我想要一个部门,资金类别,预算,费用表Php 连接两条语句的SQL语句,php,sql,join,Php,Sql,Join,我没有发现任何SQL连接问题有这么大,这就是问题所在:我有两个SQL语句,一个将资金分为不同的组,另一个将在这些组中花费的资金分为不同的组,我如何将它们连接在一起,以便将“预算”和“费用”显示在一起? 基本上,没有部门,资金类别,预算和部门,资金类别,费用表,我想要一个部门,资金类别,预算,费用表 SELECT st.name as "Department", sft.longname as "Funding Category", sum(sf.amount) as "Budget" FROM
SELECT st.name as "Department", sft.longname as "Funding Category", sum(sf.amount) as "Budget"
FROM
money_type as st,
money_funding_type as sft,
money_funding as sf
WHERE
st.ID = sf.type_ID AND
sft.ID = sf.funding_ID
GROUP BY
sf.type_id, sf.funding_id
SELECT st.name as "Department", sft.longname as "Funding Category", sum(si.amount) as "Expenses"
FROM
money_type as st,
money_funding_type as sft,
money_invoice as si
WHERE
st.ID = si.type_ID AND
sft.ID = si.funding_ID
GROUP BY
si.type_id, si.funding_id
使用完全外部联接来联接发票和资金,然后按货币类型、资金和发票进行分组。类似的方式如何
SELECT st.name as "Department",
COALESCE(sft.longname,sfti.longname) as "Funding Category",
sum(sf.amount) as "Budget",
sum(si.amount) as "Expenses"
FROM money_type as st LEFT JOIN
money_funding as sf ON st.ID = sf.type_ID LEFT JOIN
money_funding_type as sft ON sft.ID = sf.funding_ID LEFT JOIN
money_invoice as si ON st.ID = si.type_ID LEFT JOIN
money_funding_type as sfti ON sfti.ID = si.funding_ID
GROUP BY st.name,
COALESCE(sft.longname,sfti.longname)
您可以尝试以下方法。第一个查询“AllTypes”是获取可用数据的不同id/类型,而不是笛卡尔类型。从中,simple连接到类型和资金类型以获得描述 然后,再选择两个简化的money\u funding/money\u invoice元素,仅获取其“id”字段和金额总和,因此对于每个预算和费用,每个类型/资金将有一条记录。然后将它们左键连接到“AllTypes”,如果它们有相应的值,则抓取结果,否则为0 连接之间的额外换行符仅用于可读性
SELECT
st.name as "Department",
sft.longname as "Funding Category",
coalesce( Budgets.Budget, 0 ) as Budget,
coalesce( Expenses.Expense, 0 ) as Expense,
coalesce( Budgets.Budget, 0 ) - coalesce( Expenses.Expense, 0 ) as AmtRemain
from
( select distinct
type_id,
funding_id
from
money_funding
union
SELECT distinct
type_id,
funding_id
from
money_invoice ) AllTypes
JOIN money_type as st
ON AllTypes.type_id = st.id
JOIN money_funding_type as sft
ON AllTypes.funding_id = sft.id
LEFT JOIN ( SELECT
sf.type_id,
sf.funding_id,
sum(sf.amount) as "Budget"
FROM
money_funding as sf
GROUP BY
sf.type_id,
sf.funding_id ) Budgets
ON AllTypes.type_id = Budgets.Type_id
AND AllTypes.funding_id = Budgets.Funding_ID
LEFT JOIN ( SELECT
si.type_id,
si.funding_id,
sum(si.amount) as "Expense"
FROM
money_invoice as si
GROUP BY
si.type_id,
si.funding_id ) Expenses
ON AllTypes.type_id = Expenses.Type_id
AND AllTypes.funding_id = Expenses.Funding_ID
对于“AllTypes”查询,您可能需要删除第二个“DISTINCT”子句,因为第一个子句可能适用于整个“AllTypes”查询,并且可能会给您一个错误。您能给我它的SQL吗?我不懂PHP而不是SQL,我真的不知道它是如何工作的。它最终完成了,不起作用。如果费用的值应该是475.9,它是951.8,如果该值应该返回26452.19,它返回72388013.48009163向我们展示您的实际表结构和一些示例数据,我们可以看一下。根据您提供的查询,这是一个最佳效果。