Update date in MySQL to contain leading zeros -

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let's have column col1 in table tab1 has following mixed format dates:

2015-03-03 2015-02-03 2017-3-6 2015-03-04 2017-11-6

what mysql query update column more consistent, dates contain leading zeros

you should storing these date field begin anyway here's query

update `tab1` set `col1` = date(`col1`);




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