>>
>>No, this is exactly what I have. All my fields are always prefixed with the alias. And, I still have the behavior.
>
>That's unfortunate, I've never had that. I imagine that it is intermittant in that the SQL sometimes works and sometimes doesn't: it must be related to queries run before, perhaps, or if you have read the field into memory. I would guess that it doesn't happen the first time that you read it (otherwise you would not have been able to design the thing in the first place).
>
>What is the error message?

It says DESC is not found as the field is evaluated to an EXP_1. Basically, the error is generated from the next line which deals to read the DESC field. The problem is that the SQL is sometimes evaluating it and sometimes not. So, if I reference to DESC after, I may have the error.