Value is not a numeric/real. for allow null

[rikhtehgaran]

Hi, I faced another problem when I wanted to add a new record it returned an error. while I set it to allow null for these columns, while I can add records from another client. these columns fill up later by my software and I need only to fill one column. what is this?

[coleifer]

You need to put either the text "NULL" or an actual number, I suppose. But as it is, you are just storing the empty string ('').

[rikhtehgaran]

I set default null as you can see: And get error again:

[rikhtehgaran]

Also, i choose the numeric value default but get error too. it's very buggy Error: