On 7/23/2014 3:58 PM, Seamus Abshere wrote:
Right - if you had a situation where that might happen, you would use a slightly more advanced version of the UPSERT command (and/or add a unique index).
a unique index wouldn't resolve the problem. without one, you'd end up with two records, with one, you'd end up with an error.
naive programmers never seem to expect concurrency, its something that just happens.
-- john r pierce 37N 122W somewhere on the middle of the left coast
