MySQL STR_TO_DATE NULL on error

Question

I\'m currently migrating a table with dates in VARCHAR columns to a new table with DATE columns. I managed to sanitize the string values in the old

Answer 1

A possible workaround is to turn off strict mode, either for the whole server, for a particular session, or for just a few statements. For example:

 set @old_sql_mode = @@sql_mode; 
 set sql_mode = ''; 
 -- Run some statements which may result in error
 set sql_mode = @old_sql_mode;

Additional Info

MySQL Documentation

Answer 2

In addition to @EduardoDennis answer use NULLIF to filter out zero dates:

INSERT INTO newFancyTable (created_at)
SELECT nullif(str_to_date(created, '%Y-%m-%d'), from_days(0)) FROM oldCrappyTable;

See my full answer here.