mysqlwarningsalter
MySql - How to select the row a warning occurred at?
While running an ALTER TABLE statement, I got these warnings back:
How do I SELECT from my table at row 3522 to see what went wrong?
I'm not sure if row refers to the primary key or what?
I tried something like this:
SELECT * FROM table LIMIT 3521,1; // for row 3522
Solution
Have you tried to measure length of 'date_due_lastupdated' and 'date_completion_lastupdated' with your SQL? At these specific rows data length in these fields should be the same size as column max lenght.
Warnings are related to primary key - your query is ok.
You can create table with varchar(7) - fill it with data (5-7 char lenght) and then alter column varchar(6).
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