I wanna update my database from my dataset.

mydataadapter = new MySqlDataAdapter("SELECT * FROM table0; SELECT * FROM table1; SELECT * FROM table2;", con);

myda.Fill(dataset);
//......
// for example I'm doing a change like this
ds.Tables[2].Rows[1][3] = "S";

//Then updating the database
MySqlCommandBuilder com = new MySqlCommandBuilder(mydataadapter);
mydataadapter.Update(dataset, "table2");

then it returns this error

TableMapping['table2'] or DataTable 'table2' didn't find by Update.

Do you have any advice?