Question How can you produce a list of members who joined after the start of September 2012? Return the memid, surname, firstname, and joindate of the members in question.
Answers and Discussion Show
select memid, surname, firstname, joindate
where joindate >= '2012-09-01';
This is our first look at SQL timestamps. They're formatted in descending order of magnitude: YYYY-MM-DD HH:MM:SS.nnnnnn. We can compare them just like we might a unix timestamp, although getting the differences between dates is a little more involved (and powerful!). In this case, we've just specified the date portion of the timestamp. This gets automatically cast by postgres into the full timestamp 2012-09-01 00:00:00.
Look up the SQL timestamp format, and remember that you can compare dates much like you would integer values.
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