In one of my tables I have a start_date - timestamp (2007-07-04). A
separate column, start_yr_mo, has 200704 (first seven characters of
timestamp without the '-'). Both are entered manually. Can I define
start_yr_mo as a default of, for example, set start_yr_mo =
concat(substr(start_date, 1, 4),substr(start_date,6,2)). Something
like
ALTER TABLE events
ALTER start_yr_mo start_yr_mo
SET = concat(substr(start_date, 1, 4),substr(start_date,6,2));
-----===== Bill =====-----
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