SQL 中sum 是NULL的不显示出来， 怎样显示出0 还有显示出来的是乱的 怎么按我想要的排出来

Posted 2023-05-09

SELECT sum(d.DebitAmount+d.CreditAmount) AS c
FROM PUB.GLJrnDtl d
WHERE d.SegValue1 IN ('6602290000','6602250000','6602060000','6602070000','6602350000',
'6602360000','6602010000','6602020000','6602030000','6602040000','6602050000','6602080000',
'6602090000','6602100000','6602130000','6602160000','6602170000','6602230000','6602300000','6602320000')
AND d.JEDate BETWEEN to_date('2012-01-01') AND to_date('2012-01-31')
AND d.SegValue3='0101' AND d.Description<>'费用类自动结转'
group by d.SegValue1

打印出来的只有11个 null的都不显示
而且都不是按条件的顺序排列

参考技术A isnull(d.DebitAmount,0)+isnull(d.CreditAmount,0)

SQL中SUM函数返回NULL的解决办法

1.oracel:使用NVL()函数:

select nvl(sum(num),0) from table

2.mysql:使用IFNULL()函数

select ifnull(sum(num),0) from table