Two Methods of sqlparameter writing and stored procedures, as well as SQL statements (Anti-injection)

SqlParamerter sp=new SqlParamerter[]{
new SqlParamerter("@id",id)
}

　　

SqlParameter[] sp = new SqlParameter[1];

sp[0] = new SqlParameter("@name", name);

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 public static object queryName(string name)
        {
            SqlParameter[] sp = new SqlParameter[1];
            sp[0] = new SqlParameter("@name", name);
            CommandType ct = CommandType.Text;
return Sqlhelper.ExecuteScalar("select programid from  program where programname=@name", sp, ct);
        }

　　

public static int savaIdea(string idea, int proid, int ndid)
        {
            SqlParameter[] sp = new SqlParameter[3];
            sp[0] = new SqlParameter("@idea", idea);
            sp[1] = new SqlParameter("@proid", proid);
            sp[2] = new SqlParameter("@ndid", ndid);
            CommandType ct = CommandType.StoredProcedure;
return Sqlhelper.ExecuteNonQuery("proc_saveIdea", sp, ct);
        }