使用带有动态ID的存储过程插入记录时出现问题

Question

我正在编写一个存储过程，以从TableA获取记录列表，并将这些记录插入到TableB中。 现在我正面临着这个问题。

这是我的sp：

USE [Sample_DB]
GO

SET ANSI_NULLS ON
GOenter code here
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[AddStoredProcedure]

AS
BEGIN

  DECLARE @ProcessedData AS TABLE (Name varchar(200),MaritalStatus varchar(200))     

  INSERT INTO @ProcessedData (Name ,MaritalStatus )
  SELECT Name,MaritalStatus from TableA where MaritalStatus='Male'   


  INSERT INTO [TableB] 
  (
       Id
      ,Name
      ,MaritalStatus        
  )
  SELECT ('M_'+cast(RIGHT(Year(getDate()),2) as varchar)+'_'+cast(REPLACE(STR((select MAX(Id)+1 from [TableA] where MaritalStatus='Male'),4),' ','0') as varchar)),Name,MaritalStatus FROM @ProcessedData 

END  

  TableA contains,

    Id   Name      MaritalStatus
    1    John      Male
    2    Sam       Male
    3    Seema     Female

当我执行存储过程时，AddStoredProcedure

我得到的输出为

 TableB contains,

    Id          Name     MaritalStatus
    M_13_0003      John     Male
    M_13_0003      Sam      Male

但是我需要如下：

TableB should be,

Id          Name     MaritalStatus
M_13_0003      John     Male
M_13_0004      Sam      Male

预先感谢大家的答复。

Answer 1

您可以将row_number函数用作：

     DECLARE @ProcessedData AS TABLE (Name varchar(200),MaritalStatus varchar(200))     

  INSERT INTO @ProcessedData (Name ,MaritalStatus )
  SELECT Name,MaritalStatus from TableA where MaritalStatus='Male'  

  DECLARE @IdMax int;
  SELECT @IdMax = MAX(Id)
  FROM [TableA] 
  WHERE MaritalStatus='Male';



  INSERT INTO [TableB] 
  (
       Id
      ,Name
      ,MaritalStatus        
  )     
  SELECT ('M_'+cast(RIGHT(Year(getDate()),2) as varchar)+'_'+cast(REPLACE(STR((row_number() over(Order by Name)+@IdMax ),4),' ','0') as varchar)),
  Name,MaritalStatus 
  FROM @ProcessedData 

Answer 2

DECLARE @TableA TABLE (Id INT, Name VARCHAR(20), MaritalStatus VARCHAR(6))
DECLARE @TableB TABLE (Id VARCHAR(9), Name VARCHAR(20), MaritalStatus VARCHAR(6))
INSERT INTO @TableA (Id, Name, MaritalStatus) 
VALUES
(1, 'John', 'Male'),
(2, 'Sam', 'Male'),
(3, 'Seema', 'Female')


DECLARE @ProcessedData AS TABLE (Id INT IDENTITY(1,1), Name varchar(200),MaritalStatus varchar(200))     

INSERT INTO @ProcessedData (Name ,MaritalStatus )
SELECT Name
    ,MaritalStatus 
FROM @TableA 
WHERE MaritalStatus='Male'   


INSERT INTO @TableB (Id, Name, MaritalStatus)        
SELECT ('M_'+cast(RIGHT(Year(getDate()),2) as varchar)+'_'+cast(REPLACE(STR((select MAX(Id) from @TableA where MaritalStatus='Male')+Id,4),' ','0') as varchar))
    ,Name
    ,MaritalStatus 
FROM @ProcessedData 

SELECT * FROM @TableB

我已经用表变量替换了表，这样它就可以立即运行。 您有什么理由要从0003开始？ 无论如何，此查询都会产生所需的输出，如果需要更改，请进行注释。