“将数据类型nvarchar转换为bigint时出错”执行存储过程时

Question

我试图执行一个存储过程，该过程输入从查询中选择的3个参数。前两个存储过程参数应该是int或bigint，但sql不接受它并告诉我它不能将nvarchar类型转换为bigint。

因此，我将参数类型更改为nvarchar，但现在在存储过程中执行查询时出现此错误。我试图将nvarchar转换为bigint，但即使参数值是数字，它也不起作用。

这里是我如何执行存储过程：在外观传递

[dbo].[InsertMultiChoiceList] [PatientRiskAssessmentQuestionsID], NetworkRiskAssessmentQuestionsID, Answer 

的参数，如这些：

230124| 118 |COPD (Chronic Obstructive Pulmonary Disease), Congestive Heart Failure (CHF), Sleep Apnea 

这里我的存储过程的定义：

ALTER PROCEDURE [dbo].[InsertMultiChoiceList] 
    @PatientRiskAssessmentQuestionsID nvarchar(100), 
    @NetworkRiskAssessmentQuestionsID nvarchar(100), 
    @answer varchar(max) 
AS 
BEGIN 
    DECLARE @XML AS XML 
    DECLARE @Delimiter AS CHAR(1) =',' 

    SET @XML = CAST(('<X>'+REPLACE(@answer , @Delimiter ,'</X><X>')+'</X>') AS XML) 

    DECLARE @temp TABLE (Answer Varchar(max)) 

    INSERT INTO @temp 
     SELECT N.value('.', 'Varchar(max)') AS Answer 
     FROM @XML.nodes('X') AS T(N) 

    INSERT INTO [dbo].[PatientRiskAssessmentQuestionsList](NetworkRiskAssessmentListID, PatientRiskAssessmentQuestionsID) 
     SELECT 
      [dbo].[fnc_GetNetworkRiskAssessmentList](LTRIM(RTRIM(q.Answer)), @NetworkRiskAssessmentQuestionsID, 'List') AS NetworkRiskAssessmentListID, 
      @PatientRiskAssessmentQuestionsID 
     FROM 
      (SELECT Answer FROM @temp) q 
     WHERE 
      NOT EXISTS (SELECT 1 
         FROM PatientRiskAssessmentQuestionsList x 
         WHERE x.NetworkRiskAssessmentListID = NetworkRiskAssessmentListID 
          AND x.PatientRiskAssessmentQuestionsID = @PatientRiskAssessmentQuestionsID); 
END 

下面是PatientRiskAssessmentQuestionsList表的结构

下面是fnc_GetNetworkRiskAssessmentList

ALTER function [dbo].[fnc_GetNetworkRiskAssessmentList] 
    (@text varchar(max), 
    @networkriskquestionid bigint, 
    @type varchar(20) 
    ) 
RETURNS BIGINT 
AS 
BEGIN 
    declare @id bigint 
    declare @questionid bigint 
    declare @count int 

    set @id = null 
    set @questionid = null 
    set @count = 0 

    if(@type = 'List') 
    begin 
     select @count = Count(*) 
     from NetworkRiskAssessmentList mc 
     where mc.Answer = @text 
      and mc.NetworkRiskAssessmentQuestionsID = @networkriskquestionid 

     if @count > 0 
     begin 
      select top(1) @questionid = mc.NetworkRiskAssessmentListID 
      from NetworkRiskAssessmentList mc 
      where mc.Answer = @text 
       and mc.NetworkRiskAssessmentQuestionsID = @networkriskquestionid 

      set @id = @questionid 
     end 
    end 

    return @questionid 
end 

Answer 1

脚本的问题是，你正在试图推动一个字符串值插入列NetworkRiskAssessmentListID这实际上是BIGINT因此SQL不允许转换。

只是一个示例代码，向您展示问题

CREATE TABLE #Test 
(
Patient BIGINT, 
Network BIGINT 
) 

GO 

DECLARE @Patient NVARCHAR(100) 
DECLARE @Network NVARCHAR(100) 

SET @Patient = '1234' 
SET @Network = 'List' 

INSERT INTO #Test VALUES (@Patient,@Network) 

希望这有助于，请尝试更改表的数据类型，并给它一试。

Answer 2

也许你的数据已经输入的字符或制表符因此使用类似的代码如下：

DECLARE @XML AS XML 

     DECLARE @Delimiter AS CHAR(1) =',' 

     SET @XML = CAST(('<X>'+REPLACE(@answer , @Delimiter ,'</X><X>')+'</X>') AS XML) 

     DECLARE @temp TABLE (Answer Varchar(max)) 

     INSERT INTO @temp 
     SELECT N.value('.', 'Varchar(max)') AS Answer FROM @XML.nodes('X') AS T(N) 

     insert into [dbo].[PatientRiskAssessmentQuestionsList](NetworkRiskAssessmentListID, PatientRiskAssessmentQuestionsID) 
     select 
     [dbo].[fnc_GetNetworkRiskAssessmentList](LTRIM(RTRIM(q.Answer)), @NetworkRiskAssessmentQuestionsID, 'List') as NetworkRiskAssessmentListID, 
     @PatientRiskAssessmentQuestionsID 
     from 
     (select cast(replace(replace(Answer, char(13), ''), char(10), '') as bigint) as Answer from @temp) q 
     where not exists 
     (
     select 1 from PatientRiskAssessmentQuestionsList x 
     where x.NetworkRiskAssessmentListID = NetworkRiskAssessmentListID and x.PatientRiskAssessmentQuestionsID = @PatientRiskAssessmentQuestionsID 
     ); 

Answer 3

你传入PatientRiskAssessmentQuestionsID价值@PatientRiskAssessmentQuestionsID nvarchar(100)参数

那么你在接下来的代码中使用

所以问题在AND条件下，这里

and x.PatientRiskAssessmentQuestionsID = 'PatientRiskAssessmentQuestionsID' 

x.PatientRiskAssessmentQuestionsID是bigint

和@PatientRiskAssessmentQuestionsID是nvarchar (100)

其值 [PatientRiskAssessmentQuestionsID]

所以解决这个问题之一，并且一切都会确定。