多部分标识符无法绑定到 sql 的情况下

Question

大家好，我有一个 sql 查询，我在其中使用 case when 和 inner join，

我面临的问题是我收到多部分标识符错误

这是我的 sql 查询

SELECT 
CASE when row_num = 1 THEN bill_id ELSE NULL 
END as bill_id, listinvoice.sonvinid,
listinvoice.date, listinvoice.brandname,listinvoice.venue,listinvoice.zone,
listinvoice.location,
listinvoice.instructore,listinvoice.paymentid,listinvoice.amount
FROM (
select bill_id, row_number()
 over
 (partition by bill_id order by listinvoice.date asc)
  row_num, listinvoice.sonvinid, tid, listinvoice.date
  , listinvoice.brandname,listinvoice.venue,
  listinvoice.zone,listinvoice.location,
  listinvoice.instructore,paymentid,amount
from listinvoice
inner join sonvininsert
on 
sonvininsert.sonvinid=listinvoice.sonvinid
 where 
tid in (select tid from trainerdetails where empname='andrew charles')
and listinvoice.[date] between
'2015-02-02' and '2017-02-02'
)data

还有我的错误

Msg 4104, Level 16, State 1, Line 1 The multi-part identifier "listinvoice.sonvinid" could not be bound. Msg 4104, Level 16, State 1, Line 1 The multi-part identifier "listinvoice.date" could not be bound. Msg 4104, Level 16, State 1, Line 1 The multi-part identifier "listinvoice.brandname" could not be bound. Msg 4104, Level 16, State 1, Line 1 The multi-part identifier "listinvoice.venue" could not be bound. Msg 4104, Level 16, State 1, Line 1 The multi-part identifier "listinvoice.zone" could not be bound. Msg 4104, Level 16, State 1, Line 1 The multi-part identifier "listinvoice.location" could not be bound. Msg 4104, Level 16, State 1, Line 1 The multi-part identifier "listinvoice.instructore" could not be bound. Msg 4104, Level 16, State 1, Line 1 The multi-part identifier "listinvoice.paymentid" could not be bound. Msg 4104, Level 16, State 1, Line 1 The multi-part identifier "listinvoice.amount" could not be bound.

可能的修复方法是什么？

Answer 1

除了内部查询的别名外，您的查询是正确的，需要进行一次更改：

SELECT 
    CASE 
        when row_num = 1 
        THEN bill_id 
        ELSE NULL 
    END as bill_id, 
    listinvoice.sonvinid,
    listinvoice.date,
    listinvoice.brandname,
    listinvoice.venue,
    listinvoice.zone,
    listinvoice.location,
    listinvoice.instructore,
    listinvoice.paymentid,
    listinvoice.amount
FROM (
    select 
        bill_id, 
        row_number() over
            (partition by bill_id order by listinvoice.date asc) row_num, 
        listinvoice.sonvinid, 
        tid, 
        listinvoice.date , 
        listinvoice.brandname,
        listinvoice.venue,  
        listinvoice.zone,
        listinvoice.location,
        listinvoice.instructore,
        paymentid,
        amount
    from listinvoice
        inner join sonvininsert
            on 
            sonvininsert.sonvinid=listinvoice.sonvinid
    where 
        tid in 
            (
                select 
                    tid 
                from trainerdetails 
                where empname='andrew charles'
            )
    and listinvoice.[date] 
        between '2015-02-02' and '2017-02-02'
        )listinvoice -- change required here to correct the alias

Answer 2

SELECT 
CASE when row_num = 1 THEN bill_id ELSE NULL 
END as bill_id, data.sonvinid,
data.date, data.brandname,data.venue,data.zone,
data.location,
data.instructore,data.paymentid,data.amount
FROM (
select bill_id, row_number()
 over
 (partition by bill_id order by listinvoice.date asc)
  row_num, listinvoice.sonvinid, tid, listinvoice.date
  , listinvoice.brandname,listinvoice.venue,
  listinvoice.zone,listinvoice.location,
  listinvoice.instructore,paymentid,amount
from listinvoice
inner join sonvininsert
on 
sonvininsert.sonvinid=listinvoice.sonvinid
 where 
tid in (select tid from trainerdetails where empname='andrew charles')
and listinvoice.[date] between
'2015-02-02' and '2017-02-02'
)data -- here is where you named your table

您的 SELECT 语句是从您命名为 data 的派生 table 中提取的，因此您需要适当地引用 table 名称。

多部分标识符无法绑定到 sql 的情况下

multipart identifier could not be bound on sql with cases when

sql-server

inner-join

case-when