Go4Expert - insert into table problem in Oracle dataBase Through CommandText.Text

Go4Expert (http://www.go4expert.com/)

- ASP.NET (http://www.go4expert.com/forumdisplay.php?f=14)

- - insert into table problem in Oracle dataBase Through CommandText.Text (http://www.go4expert.com/showthread.php?t=19939)

insert into table problem in Oracle dataBase Through CommandText.Text

Dear sir,
i am new to ASP.NET programming ,through c#.
In my web project,i am inserting into SqlServer Database through Command.Text method.It is working fine.
Below i am giving the code for SqlServer database table.

Code:

...

....

using System.Data.SqlClient;





public partial class _Default : System.Web.UI.Page

{

    SqlConnection sqlcon = new SqlConnection("Data Source=.\\sqlexpress;Initial Catalog=DB2;Integrated Security=True;Pooling=False");

    protected void Page_Load(object sender, EventArgs e)

    {

        GridControl();

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        String sqlins = "insert into emp_t values(@emp_name)";  

        SqlCommand sqlcmd = new SqlCommand();

        sqlcmd.Connection = sqlcon;

        sqlcmd.CommandText = sqlins;

        sqlcmd.CommandType = CommandType.Text;

        sqlcmd.Parameters.Add("@emp_name", TextBox1.Text.ToString());

        sqlcon.Open();

        sqlcmd.ExecuteNonQuery();

        sqlcon.Close();

        Response.Write("record saved");



        GridControl();

    }

    public void GridControl()

    {

        String sqlsel = "select *from emp_t";

        SqlDataAdapter sda = new SqlDataAdapter(sqlsel, sqlcon);

        DataTable dt = new DataTable();

        sda.Fill(dt);

        GridView1.DataSource = dt;

        GridView1.DataBind();



    }



}

this is working fine....BUT when i tried to do so in Oracle DataBase table it gave error.Exception is returned by Oracle database.Below is the cose for Oracle DataBase table

Code:

...

.....

using System.Data.OracleClient;







public partial class _Default : System.Web.UI.Page

{

    OracleConnection oracon = new OracleConnection("Data Source=EARTH;Persist Security Info=True;User ID=rinku;Password=rinku;Unicode=True");

   

    protected void Page_Load(object sender, EventArgs e)

    {

        GridControl();

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        String orains = "insert into T6 values(@name)";



        OracleCommand oracmd = new OracleCommand();

        oracmd.Connection = oracon;

        oracmd.CommandText = orains;

        oracmd.CommandType = CommandType.Text;

        oracmd.Parameters.Add("@name", TextBox1.Text.ToString());

        oracon.Open();

        oracmd.ExecuteNonQuery();

        oracon.Close();

        Response.Write("Record saved");

        GridControl();

        

    }

    public void GridControl()

    {

         String orasel="select *from T6";

         OracleDataAdapter oda = new OracleDataAdapter(orasel, oracon);

         DataTable dt = new DataTable();

         oda.Fill(dt);

         GridView1.DataSource = dt;

         GridView1.DataBind();



    }





}

.
Build is successful but,
It gave the following runtime error:-
Error at : oracmd.ExecuteNonQuery();
OracleException was unhandled by the user code
ORA-01036: illegal variable name/number

plz help me ...

Re: insert into table problem in Oracle dataBase Through CommandText.Text

Use Exception Handling to trace the error.
Find the function in which you are getting the error.

From the code I see only 1 problem; syntax error in below line.
String orasel="select *from T6";

Correct code:
String orasel="select * from T6";

Re: insert into table problem in Oracle dataBase Through CommandText.Text

main problem is in this statement:

oracmd.ExecuteNonQuery();

.
Because oracle is returnong some error at run time,when i am inserting value through CommandText.Text. And there is no problem in simple insert.
Even when i am using SQL Server Database it is working fine,but it returns error for oracle DataBase..
Exception handling will not solve my problem..plz any one help

Re: insert into table problem in Oracle dataBase Through CommandText.Text

Try this:

replace @ with colon

Quote:

http://msdn.microsoft.com/en-us/libr...mmandtext.aspx
When using named parameters in an SQL statement called by an OracleCommand of CommandType.Text, you must precede the parameter name with a colon ( : ). However, in a stored procedure, or when referring to a named parameter elsewhere in your code (for example, when adding OracleParameter objects to the Parameters property), do not precede the named parameter with a colon ( : ). The .NET Framework Data Provider for Oracle supplies the colon automatically.

OR modifying to this:

Quote:

http://msdn.microsoft.com/en-us/libr...parameter.aspx
oracmd.Parameters.Add("@name", OleDbType.Char, 3).Value = TextBox1.Text.ToString();

OR try inserting the value in string directly, instead of giving by parameter.
String orains = "insert into T6 values('" & TextBox1.Text.ToString() & "')";

Re: insert into table problem in Oracle dataBase Through CommandText.Text

oh! thanks a lot...it is working fine.
So main problem was with oracle data provider...is'nt it..

Re: insert into table problem in Oracle dataBase Through CommandText.Text

what did you modify that solved your problem?

Re: insert into table problem in Oracle dataBase Through CommandText.Text

As you said, i replaced all the '@' symbols with ':' symbols and my problem is solved.

Re: insert into table problem in Oracle dataBase Through CommandText.Text

Good. Thanks for confirmation.