Question

所以我有以下逻辑：

set nocount on

select t1.*, ISNULL(t2.CountNewGLLinkIDs,0) AS CountNewGLLinkIDs

from

(select [Client_Number],[ClientName],[RemitType],[ClientServiceRep],[Backup_ClientServiceRep],       [ClientAuditor],[WirelessAuditor]
,[AccountManager],[ProvisioningRep],[BillingMonth], CASE RO.Inventory_Type WHEN 'WIRELESS' THEN 1     ELSE 0 END AS InventoryType, [NbrGLLinkIDs],[NbrInvoices],[AutoProcessCount] as [AutoProcessed]
,CONVERT(numeric(18,4), CONVERT(decimal, [AutoProcessCount])/CASE WHEN ISNULL([NbrInvoices], 1) =     0 THEN 1 ELSE ISNULL([NbrInvoices], 1) END) as AutoProcessPercentage
,[Spend],[EDI]
,CONVERT(numeric(18,4), CONVERT(decimal, [EDI])/CASE WHEN ISNULL([NbrInvoices], 1) = 0 THEN 1     ELSE ISNULL([NbrInvoices], 1) END) as EDIPercentage
,[Paper]
,CONVERT(numeric(18,4), CONVERT(decimal, [PAPER])/CASE WHEN ISNULL([NbrInvoices], 1) = 0 THEN 1     ELSE ISNULL([NbrInvoices], 1) END) as PaperPercentage
,[Import]
,CONVERT(numeric(18,4) , CONVERT(decimal, [Import])/CASE WHEN ISNULL([NbrInvoices], 1) = 0 THEN 1     ELSE ISNULL([NbrInvoices], 1) END) as ImportPercentage
,[TotalLateFees]
,[TotalLateFees]/CASE WHEN ISNULL([Spend], 1) = 0 THEN 1 ELSE ISNULL([Spend], 1) END as     LateFeesPercentOfSpend
,[NumberOfLateFees],[BalanceCarriedForward]
,[BalanceCarriedForward]/CASE WHEN ISNULL([Spend], 1) = 0 THEN 1 ELSE ISNULL([Spend], 1) END as     BCFPercentOfSpend
,[NumberOfBCFs],[ApprovedWithin5DaysOfDue],[ApprovedAfterDue],[ProcessedWithin5DaysOfDue],    [ProcessedAfterDue],[AvgDaysToProcess]
,[NewMasterAccounts]
,[BANCount] AS [NewAccountBANCount]
 FROM [RollupReports].[dbo].[report_Rollup_KPI_Approval] RO with (nolock)) t1


left outer join

--get count of gllinkid during months required
(select client_number, CASE WHEN InventoryType = 1 THEN 'WIRELESS' ELSE 'WIRED' END AS     InventoryType,
cast(datepart(mm,DateCreated) as varchar(2)) + '/01/' + cast(datepart(yyyy,DateCreated) as     varchar(4)) as BillingMonth,
count(gllinkid) as CountNewGLLinkIDs 
from glacct with (nolock)
inner join 
    (select vendor,MAX(InventoryType) as InventoryType
    FROM tbl_Ref_Vendors with(nolock)
    group by vendor) as VendorData ON glacct.vendor = VendorData.Vendor
where Client_Number in
    (select distinct client_number
     FROM [RollupReports].[dbo].[report_Rollup_KPI_Approval]  with (nolock))
group by client_number, cast(datepart(mm,DateCreated) as varchar(2)) + '/01/' +     cast(datepart(yyyy,DateCreated) as varchar(4)),
InventoryType) t2

ON t1.Client_Number = t2.client_number and t1.BillingMonth = t2.BillingMonth and t1.InventoryType     = t2.InventoryType
order by t1.ClientName, t1.InventoryType, t1.BillingMonth DESC

这给了我这个错误：转换varchar值时转换失败＆＃39; WIRED＆＃39;到数据类型int。

我到处搜索并尝试将其投射到varchar，但我觉得我缺乏经验并没有帮助。如果有人能够指出我为什么会收到这个错误，那么我就可以学习如何解决这个错误！

ps：抱歉我的英文。

Answer 1

问题出在两个查询的case statement

中

在T1中有案例陈述

CASE RO.Inventory_Type WHEN 'WIRELESS' THEN 1     ELSE 0 END AS InventoryType

此处InventoryType将基于0为1或RO.Inventory_Type。所以这里的InventoryType列数据类型将是INT

在T2中有案例陈述

CASE WHEN InventoryType = 1 THEN 'WIRELESS' ELSE 'WIRED' END AS InventoryType

但此处InventoryType可以是WIRELESS或WIRED。 InventoryType数据类型将为Varchar

最后，您将加入T1和T2表格，如

ON t1.Client_Number = t2.client_number 
and t1.BillingMonth = t2.BillingMonth 
and t1.InventoryType = t2.InventoryType -- this where the problem is

因此，在加入时，尝试将t2.InventoryType转换为int，其中包含varchar值，以便您收到该错误。

转换varchar值时转换失败＆＃39;有线＆＃39;到数据类型int

1 个答案: