I have an account on Amazon simpledb and have created a domain there, now I want to add some particular fields of my database in domain. Is it possible using sdbexplorer? Please help me….

thanks

Yes , you can add particular fields.
Make sure the ID field that you select during upload must be exactly same as Item-Identifier of your existing domain. If Item-Identifier and ID field are same, it will add your desired Attribute to your existing row and if they are not same then it will add those attribute to a new row.