SSIS 之 Exception "truncated if it exceeds the maximum length of 4000 characters"

問題：

Error Desc: The result string for expression "SELECT  ID, ......from users  WITH (NOLOCK) where id in  ( " + @[User::IDSQLCondition]"may be truncated if it exceeds the maximum length of 4000 characters.The expression could have a result value that exceeds the maximum size of a DT_WSTR.

解決方案：原因是SQL 查詢語句太長，超過最長字數， 所以修改sql語句，通過減少變量@[User::IDSQLCondition]的值或分多次查詢再整合，即可。