Parameter '@myLeft' must be defined

Question

My question is quite similar to already answered ones but yet not. I\'d like some help sorting this out.

I\'m trying to add data to a database table but I get keepin

Answer 1

Can you try:

objCmdInsert.Parameters.Add("@myLeft", MySqlDbType.Int).Value = 1212;

You probably have to do it for EACH occurrence of that parameter.

It's not clear to me what's the meaning of SET @myLeft := lft; (You are trying to assign column value to parameter)