Mysql 减去同一查询中借方列的贷方?
我有以下疑问: 选择用户id,金额(贷方)作为贷方,金额(借方)作为借方 从帐户 其中用户_id='35'Mysql 减去同一查询中借方列的贷方?,mysql,sql,Mysql,Sql,我有以下疑问: 选择用户id,金额(贷方)作为贷方,金额(借方)作为借方 从帐户 其中用户_id='35' 我想从贷方减去借方,并将其显示在一列中,或者显示为变量中的值您可以在同一行中计算差值 SELECT user_id, SUM(credit) AS cred, SUM(debit) AS deb, SUM(credit) - SUM(debit) total FROM account WHERE user_id = 35 更新1
我想从贷方减去借方,并将其显示在一列中,或者显示为变量中的值您可以在同一行中计算差值
SELECT user_id,
SUM(credit) AS cred,
SUM(debit) AS deb,
SUM(credit) - SUM(debit) total
FROM account
WHERE user_id = 35
更新1
SELECT user_id,
SUM(credit) AS cred,
SUM(debit) AS deb,
SUM(credit) - SUM(debit) total
FROM account
WHERE user_id IN (30,31,32,33,34,35)
GROUP BY user_ID
更新2
SELECT user_id,
SUM(credit) AS cred,
SUM(debit) AS deb,
SUM(credit) - SUM(debit) total
FROM account
WHERE user_id IN (30,31,32,33,34,35)
GROUP BY user_ID
HAVING (SUM(credit) - SUM(debit)) < 10
选择用户标识,
信贷总额,
金额(借方)为deb,
总额(贷方)-总额(借方)总计
从帐户
其中用户id位于(30,31,32,33,34,35)
按用户ID分组
(总(贷方)-总(借方)少于10
这应该有效,并且可能比另外两个求和要稍微快一些
SELECT a.user_id,
a.cred,
a.deb,
a.deb - a.cred AS value
FROM (SELECT user_id,
Sum(credit) AS cred,
Sum(debit) AS deb
FROM account
WHERE user_id = '35') a
如果您有多个用户,可以执行以下操作:
SELECT a.user_id,
a.cred,
a.deb,
a.deb - a.cred AS value
FROM (SELECT user_id,
Sum(credit) AS cred,
Sum(debit) AS deb
FROM account
WHERE user_id IN (35, 36, 39)
GROUP BY user_id) a
如果我有不同的用户id,那么我应该把like user_id='30,31,32,33,34,35'等等……@Akaash,然后你可以使用中的和分组。请看我的答案。谢谢大家的快速回复。。我现在只需要从用户id池中选择总数小于10的用户id。你说的用户id池中的总数小于10是什么意思?
?就像我有用户列表一样,但我只想从该列表中选择总数小于10的用户(减去贷记项中的借方为总数)