That's what I have been doing so far. Positively, for interactive & ad-hoc query sessions, this doesn't seem to be an appropriate choice using BTEQ.
If I recall (in SQL+), if a huge query is executed and a little change is desired afterwards, all we need to do is to type "ED" and the same query automatically opens in a text editor for a possible modification. No need to explicitly create & maintain a separate script file.
In my case using BTEQ, I would have to:
>> Write [& Modify] the script
>> Save & maintain the file
>> Execute the script [from file]
An alternate option is to use an ODBC client (SQLA, DDI), but they don't support sub/aggregate totalling functionality.
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