mySQL str_to_date() function returns error

Question

I keep receiving an error message when trying to convert a column, CreatedDate, of string date values in my Estimates table into the mySQL date format using str_to_date(). M

Answer 1

It's hitting blank values in your column.

SET CreatedDate = str_to_date( '', '%c/%e/%y' )

I think this outputs 0000-00-00 and that works as an invalid date if you are setting a date field to that.

SET CreatedDate = STR_TO_DATE( IFNULL(case when CreatedDate = '' then null else createddate end,'1901-1-1'), '%c/%e/%y' )

That will leave 1901-01-01 values for nulls and blank

Added to tadman:

SET CreatedDate = STR_TO_DATE(case when CreatedDate = '' then null else createddate end, '%c/%e/%y' )

Nulls instead of 1901-01-01 if you prefer.