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Querying timestamp during the DST boundary case time period

in SQL Language (MOSC) 2 commentsAnswered ✓

Oracle 19c database.

During the period when daylight savings time ends, it is possible to have two entries entered an hour apart that have the same timestamp.

1) Without the column "timestamp with time zone", is it possible to know which one came first? If so, how?

2) When querying a range of time that includes that one hour, but also weeks before and after, how do you produce results that are in chronological order even if you do not know when the time change was?

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