1. For example, there are two formats for records in the create_date field: 2018-10-10 09:08:07 and 2018-10-10 09-08-07
how to find out two different formats in the sql statement delete the format 2018-10-10 09-08-07
how to find out two different formats in the sql statement delete the format 2018-10-10 09-08-07
2018-10-10 09-08-07 this format is not easy to find. Because it does not conform to the format of datetime and datestamp.
if there are only these two formats, try to look up the data in the format of 2018-10-10 09:08:07, back it up, then empty the table, and restore the backed-up data.
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Table structure ...
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