Select every hour query
问题 I have a simple weather station DB with example content: time humi1 humi2 light pressure station-id temp1 temp2 ---- ----- ----- ----- -------- ---------- ----- ----- 1530635257289147315 66 66 1834 1006 bee1 18.6 18.6 1530635317385229860 66 66 1832 1006 bee1 18.6 18.6 1530635377466534866 66 66 1829 1006 bee1 18.6 18.6 Station writes data every minute. I want to get SELECT not with all series, but just series written every hour (or every 60th series, simply said). How can I achieve it? I tried