SSIS執行SQL任務 - 驗證MDS模型

Question

我正在開發將數據從數據源抽取到MDS數據模型\實體的SSIS包。

我有一個執行SQL任務，它應該驗證MDS Facility實體。

下面是腳本：

DECLARE @ModelName nVarchar(50) = 'DEV ERP' 
DECLARE @Model_id int 
DECLARE @UserName nvarchar(50) = 'System' 
DECLARE @User_ID int 
DECLARE @Version_ID int 
SET @User_ID =  (SELECT ID  
                 FROM mdm.tblUser u 
                 WHERE u.UserName = @UserName) 
SET @Model_ID = (SELECT Model_ID 
                 FROM mdm.viw_SYSTEM_SCHEMA_VERSION 
                 WHERE Model_Name = @ModelName) 
SET @Version_ID = (SELECT MAX(ID) 
                   FROM mdm.viw_SYSTEM_SCHEMA_VERSION 
                   WHERE Model_ID = @Model_ID) 
EXECUTE mdm.udpValidateModel @User_ID, @Model_ID, @Version_ID, 1 

這是我得到的錯誤嘗試執行任務時：

[Execute SQL Task] Error: Executing the query "DECLARE @ModelName nVarchar(50) = 'DEV ERP' DECLAR..." failed with the following error: "SYSERR515|Cannot insert the value NULL into column 'EnterUserID', table 'MDS.mdm.tblEvent'; column does not allow nulls. INSERT fails., @ErrorNumber = 515, @ErrorProcedure = "udpSystemEventSave", line 60". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.

我不知道我怎麼能解決這個問題，因爲我不能將該變量聲明爲NOT NULL值。在傳遞該變量之前，我該如何檢查記錄是否有效記錄？

Answer 1

IF @User_ID IS NULL 
    BEGIN 

     -- Handle it here. 

    END 
;