Sql pivot将null转换为零
下面我创建了一个2表的事务类型和事务主类型 事务类型。交易类型包含贷方和借方id 则交易类型为包含交易详细信息Sql pivot将null转换为零,sql,sql-server,common-table-expression,Sql,Sql Server,Common Table Expression,下面我创建了一个2表的事务类型和事务主类型 事务类型。交易类型包含贷方和借方id 则交易类型为包含交易详细信息 transaction_type ----------------- transaction-id|transaction-name 1 |credit 2 |debit transaction_master ----------- transaction-id|date_of_tran
transaction_type
-----------------
transaction-id|transaction-name
1 |credit
2 |debit
transaction_master
-----------
transaction-id|date_of_transaction|amount
1 |2016-01-12 |100
2 |2015-12-30 |200
1 |2016-01-05 |300
1 |2015-12-04 |500
2 |2015-12-12 |50
2 |2015-12-25 |1000
1 |2016-01-30 |100
normal PIVOT output is
-----------------------
YEAR|Jan |Feb |mar |Apr |may |Jun |Jul |Aug |Sep |Oct |Nov |Dec
2015|null|null|null|null|null|null|null|null|null|null|null|-700
2016|500 |null|null|null|null|null|null|null|null|null|null|null
But i want this
YEAR|Jan |Feb |mar |Apr |may |Jun |Jul |Aug |Sep |Oct |Nov |Dec
2015|0 |0 |0 |0 |0 |0 |0 |0 |0 |0 |0 |0
2016|500 |0 |0 |0 |0 |0 |0 |0 |0 |0 |0 |0
在上述情况下,“空”和“负”值应为“0”
您可以在以下内容中使用
CASE
和ISNULL
:
with aa as(select year(d.date_of_transaction),
case when isnull(left(datename(month,date_of_transaction),3),0) < 1 then 0 else left(datename(month,date_of_transaction),3) end as month
以aa为单位(选择年份(交易日期),
如果isnull(左(datename(月,交易的日期),3),0)小于1,则剩余0(datename(月,交易的日期),3)以月结束
您可以在最后的选择
子句中使用:
[ISNULL]用指定的替换值替换NULL
您可以向我们展示您的查询吗?如果为空(col_name,0),aa为(选择年份(交易日期),左侧(日期名称(交易日期),3)为monthSankar Raj@,我在我的问题中插入此行,您可以编辑您的问题并发布整个查询吗?
with aa as(select year(d.date_of_transaction),
case when isnull(left(datename(month,date_of_transaction),3),0) < 1 then 0 else left(datename(month,date_of_transaction),3) end as month
;with AA as(
select
year(d.date_of_transaction) AS [year],
left(datename(month,date_of_transaction),3) as [month],
sum (case when c. transaction_type like '%c%' then d.Amount else d.Amount*-1 end)as balance
from
transaction_master d join transaction_type c on c.[transaction-id]=d.[transaction-id]
group by
date_of_transaction
)
select
[year],ISNULL(Jan,0) Jan,ISNULL(Feb,0) Feb,ISNULL(Mar,0) Mar,ISNULL(Apr,0) Apr,ISNULL(May,0) May,ISNULL(jun,0) jun,ISNULL(Jul,0) Jul,ISNULL(Aug,0) Aug,ISNULL(Sep,0) Sep,ISNULL(Oct,0) Oct,ISNULL(Nov,0) Nov,ISNULL([Dec],0) [Dec]
from
AA
pivot(sum(balance) for [month] in (Jan,Feb,Mar,Apr,May,jun,Jul,Aug,Sep,Oct,Nov,Dec)) as pvt