在表transact-SQL中插入未计算的Id

我有一个存储过程，从C中的API接收JSON数据。我将数据插入两个表中，如下所示：

INSERT INTO dbo.ServiceRequestHeader(SubscriptionId, CustomerAccountId, ModifiedBy)
OUTPUT Inserted.ServiceRequestHeaderId INTO @TempT
    SELECT
        SubscriptionId,
        CustomerAccountId,
        ModifiedBy
    FROM
        OpenJson(@JsonServiceRequest)
        WITH 
           (SubscriptionId TinyInt,
            CustomerAccountId Int)

SELECT @TempId = Id FROM @TempT   

INSERT INTO dbo.ServiceRequest(ServiceRequestId, ServiceRequestHeaderId, SubscriptionId)
    SELECT
        @TempId, -- <= Here I need to modify the serviceRequestHeaderId
        @TempId,
        SubscriptionId
    FROM
        OpenJson(@JsonServiceRequest, '$.ServiceRequest')
        WITH (SubscriptionId TinyInt,
             ...)

问题是serviceRequestId不是一个计算字段，它是一个特殊情况，取决于ServiceRequestHeaderId

例如：

如果ServiceRequestHeaderId=1000，ServiceRequestId将为1000 001、1000 002。。。N

---

这就是我无法找到解决方法的地方

使用CTE计算每个请求的行号，然后根据它构建id，例如

with MyCTE as (
  select
    SubscriptionId
    -- Order by whatever makes business sense to you
    , row_number() over (order by SubscriptionId) rn
  from openjson(@JsonServiceRequest, '$.ServiceRequest')
  with (
    SubscriptionId tinyint,
    ...
  )
)
insert into dbo.ServiceRequest (ServiceRequestId, ServiceRequestHeaderId, SubscriptionId)
  -- Put whatever logic you like here to calculate a row number based id
  select convert(varchar(4),@TempId) + ' ' + case when rn >= 100 then convert(varchar(3),rn) when rn > 10 then '0' + convert(varchar(2),rn) else '00' + convert(varchar(1),rn) end
    , @TempId, SubscriptionId
  from MyCTE;

---

使用CTE计算每个请求的行号，然后根据它生成id，例如

with MyCTE as (
  select
    SubscriptionId
    -- Order by whatever makes business sense to you
    , row_number() over (order by SubscriptionId) rn
  from openjson(@JsonServiceRequest, '$.ServiceRequest')
  with (
    SubscriptionId tinyint,
    ...
  )
)
insert into dbo.ServiceRequest (ServiceRequestId, ServiceRequestHeaderId, SubscriptionId)
  -- Put whatever logic you like here to calculate a row number based id
  select convert(varchar(4),@TempId) + ' ' + case when rn >= 100 then convert(varchar(3),rn) when rn > 10 then '0' + convert(varchar(2),rn) else '00' + convert(varchar(1),rn) end
    , @TempId, SubscriptionId
  from MyCTE;

---

您可以生成ServiceRequestId，如下所示。我使用000的格式函数来填充0到3位数字。如果需要四位数字，请使用0000

从@test中选择@TempId=Id 插入到dbo.serviceRequestId、ServiceRequestHeaderId、SubscriptionId中 选择

---

CONCAT@TempId，FORMATROW_NUMBER OVERORDER通过选择null，'000'作为ServiceRequestId，-您可以生成ServiceRequestId，如下所示。我使用000的格式函数来填充0到3位数字。如果需要四位数字，请使用0000

从@test中选择@TempId=Id 插入到dbo.serviceRequestId、ServiceRequestHeaderId、SubscriptionId中 选择

---

CONCAT@TempId，FORMATROW_NUMBER OVERORDER BY SELECT null，'000'作为ServiceRequestId，-此SELECT@TempId=Id From@test意味着您一次只能插入一个服务请求头？是这样吗？是的，只有一个服务请求头，但多个服务请求从@TELT中选择@TempId=Id意味着您一次只能插入一个服务请求头？是这样吗？是的，只有一个服务请求头，但有多个服务请求