Restore mysql auto-numbering

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I have 2 databases that suddenly won't auto-number. Is this a bug through an update?

What I have tried:

I tried to use query with Workbench and reset the field integer type. But error report that SQL statement was not correct.

Posted 3-Jul-17 17:15pm

BobbyStrain

Updated 4-Jul-17 4:40am

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KarstenK · Answer 1 · 2017-07-04T04:40:00

Solution 1

Try to make new databases to check whether its a bug in the database or by you. Read the error messages more careful and write themabsolut exact when asking.

Posted 4-Jul-17 4:40am

KarstenK

Comments

BobbyStrain 4-Jul-17 11:32am

Thank you.
I made a couple of changes to the database, and auto-numbering works OK whenever I use Workbench to add a record. But I have a front-end with a datagridview that is not working properly. I have a binding navigator with the add, save, etc. When I try to add a new record and save it, the front end does not place a value in the ID column. It worked quite well before, and would assign sequential values of -1, -2, etc for the new records. This is no longer happening. So, I'll have to search the front-end C# windows form code for the problem. Strange, I have not changed any code that would cause this to break.