将nvarchar值'2151','1886'转换为数据类型int时，转换失败。

Question

我有以下查询

  DEClare @Plan_ID nvarchar(100)
  set @Plan_ID=REPLACE('2151,1886',',',''',''') 

和

SELECT distinct  Plan_Dict_Id from REF_Plan_Dictionary WHERE 
   CAST(Plan_Dict_Id as int) in (@Plan_ID),

Pls help , Plan_Dict_Id 数据类型是 INT, 我想传递的值到哪里 , 但得到错误 "转换失败时转换的 varchar 值'2151','1886'改为数据类型为int。"

Answer 1

如果这是SQL Server的后期版本，那么你可以做这样的事情......。

DECLARE @Plan_ID nvarchar(100) 
SET @Plan_ID= '2151,1886'

SELECT DISTINCT Plan_Dict_Id 
    FROM REF_Plan_Dictionary d
        JOIN string_split(@Plan_ID, ',') s ON d.Plan_Dict_Id = s.[value]

如果你使用的是旧版本，你可以把整个语句放在一个字符串中，然后执行它，但是你的第一行有一个问题，因为你没有在字符串周围添加引号。我已经在下面交代了。

DEClare @Plan_ID nvarchar(100) set @Plan_ID=REPLACE('2151,1886',',',''',''') 
DECLARE @sql nvarchar(max)
SET @SQL = 'select distinct Plan_Dict_Id from REF_Plan_Dictionary where CAST(Plan_Dict_Id as int) in (''' + @Plan_ID + ''')'
EXEC (@sql)