参数不工作存储过程

Question

--  This query works using the split function
SELECT AssignUserID,* FROM dbo.Task WHERE TaskID in (SELECT * FROM udf_Split ('1269469,1359508',','))


--this script using the @TasksToUpdate parameter does not work.  
--If I replace the parameter @TasksToUpdate with the string in the where clause then it does work
DECLARE @NewUser varchar 
DECLARE @TasksToUpdate varchar 
DECLARE @UpdateUser VARCHAR(30)

SET @NewUser = 'aaronteamlead'
SET @TasksToUpdate = '1269469,1359508'
SET @UpdateUser = 'updateusername'

UPDATE dbo.Task
SET AssignUserID = @NewUser,LastUpdatedDt=getdate(),LastUpdatedUser=@UpdateUser
WHERE TaskID in (SELECT * FROM udf_Split (@TasksToUpdate,','))

Answer 1

DMason是对的。

＆＃34;指定DECLARE @TasksToUpdate varchar的长度。如果未指定长度，则默认为VARCHAR（1）。 ＆＃34;