I have two tables:
students (student_id, id_carrera, nro_doc ... rterc, eterc) PK (student_id, id_carrera).
debts (rterc, eterc, date_of_voice, number_of_voice, amount, expiration ...)
The table does not have debts.
The field eterc is e...
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18.04.2017 / 18:57