Strange error - SQL query in ASP page

[Setta]

Hello everybody.

I have the following SQL query in an ASP file.

---CODE---
ALTER TABLE mytable ADD mycolumn single
----------

So far so good, it worked a few times (in tests)
But now I get the following error:

---ERROR---
Microsoft JET Database Engine (0x80004005)
Número excessivo de campos definido.
-----------

I know, it's in portuguese, I'll try to translate in the better way I can:

Excessive number of fields defined.
or
Too many fields definied.

Something like that.
This error appeared after I've made somechange (manually) on my Database (MSAccess), but the change was only including a new line.

If anyone has a clue about what is happening, please share it!

Thanks in advanced.



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