SQL QUERY ERROR;必须是整数

Question

我在我的SQL查询中收到以下错误。任何人都可以请求帮助：

Msg 1060，Level 15，State 1，Line 50 为TOP或FETCH子句行计数参数提供的行数必须是整数。

with 
-- sample data 
Tbl_PCode as (
select * 
from (values 
     (450001,cast('8/1/2016' as date), 'REG', 40.50, 1), 
     (450001,cast('8/1/2016' as date), 'OT', 10.50, 2), 

     (450002,cast('8/2/2016' as date), 'REG', 29.50, 3),          

     (450003,cast('8/3/2016' as date), 'REG', 32.50, 4), 
     (450003,cast('8/3/2016' as date), 'VACC', 8.50, 5), 

     (450004,cast('8/3/2016' as date), 'VACC', 8.50, 6), 

     (450005,cast('8/3/2016' as date), 'VACC', 35.50,7) 

     ) t(ID,Date,PCode,Hours,pos) 
), 
Tbl_TCode as (
select * 
from (values 
     (450001,cast('8/1/2016' as date), 'SHOPC', 10.50, 1), 
     (450001,cast('8/1/2016' as date), 'FIELDC', 30.50, 2), 
     (450001,cast('8/1/2016' as date), 'SHOPC', 2.00, 3), 
     (450001,cast('8/1/2016' as date), 'FIELDC', 8.00, 4), 

     (450002,cast('8/2/2016' as date), 'SHOPC', 2.00, 5), 
     (450002,cast('8/2/2016' as date), 'FIELDC', 27.50, 6), 

     (450003,cast('8/3/2016' as date), 'SHOPC', 20.50, 7), 
     (450003,cast('8/3/2016' as date), 'FIELDC', 12.50, 8), 
     (450003,cast('8/3/2016' as date), 'SHOPC', 8.00, 9), 
     (450003,cast('8/3/2016' as date), 'FIELDC', 0.00, 10), 

     (450004,cast('8/3/2016' as date), 'SHOPC', 8.50, 11), 

     (450005,cast('8/3/2016' as date), 'SHOPC', 35.50, 12) 

     ) t(ID,Date,TCode,Hours,pos) 
), 
tally as ( 
select top(500000) rn= row_number() over(order by (select null)) 
from sys.all_objects 
), 
-- query 
t_P as (
select *, rn=row_number() over(partition by ID,Date order by pos) 
from Tbl_PCode 
cross apply (select top(Hours) 1 n 
      from tally 
      ) x 
), 
t_T as (
select *, rn=row_number() over(partition by ID,Date order by pos) 
from Tbl_TCode 
cross apply (select top(Hours) 1 n 
      from tally 
      ) x 
) 
select t_P.ID as PersonNum, t_P.Date, t_P.PCode as PayCode, 
count(*) as Hours, t_T.TCode as TransferCode 
from t_P 
join t_T on t_P.ID=t_T.ID and t_P.Date=t_T.Date and t_P.rn=t_T.rn 
group by t_P.ID, t_P.Date, t_P.PCode, t_T.TCode 
order by t_P.id asc 

Answer 1

变化

cross apply (select top(Hours) 1 n 

到

cross apply (select top 1 [Hours] AS n 

两个CROSS APPLY语句。这只是一个语法错误。