I'm trying to copy a varchar column which contains dates in the format YYYY-MM-DD to a date column using str_to_date.

My query is: UPDATE subscribers SET srtdt = STR_TO_DATE(StartDate, '%Y%m%d%');

I am getting error 1411: Incorrect datetime value: '2001-09-16'... This seems to be happening on the first row.

I have searched a lot for this but cannot find why this is happening - all other answers point towards the string being in the wrong format etc, and that doesn't seem to be the case with my problem.


  • Fast guess: you would need %Y-%m-%d with the - and without your last % – joanolo Jan 10 '17 at 9:05
  • Eh? '2001-09-16' is a valid DATE or DATETIME. So, why run it through STR_TO_DATE()? – Rick James Jan 11 '17 at 0:37

Try it:

UPDATE subscribers SET srtdt = STR_TO_DATE(StartDate, '%Y-%m-%d');

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