SQL query does not run...

Hi all

In fact I'm trying recover the data of the mobile database table in the code snippet

below the program runs until the dialog box display the string «after querry» and after that

throw an exception.

can anyone solve the problem...

try
{
//URI myuri = URI.create("file:///SD Card/databases/myTree/myTeam.db");
URI myuri = URI.create("file:///SDCard/databases/myTree/"+"myTeam.db");
    Dialog.alert("Database opened");
    Dialog.alert("Database opened");
    data = DatabaseFactory.openOrCreate(myuri);
    Dialog.alert("before query");
    st = data.createStatement("SELECT * FROM mobile WHERE name="+text);
    Dialog.alert("After querry");
    st.prepare();
    Cursor c = st.getCursor();
    int i = 0;
    Dialog.alert("Before while");
    while(c.next())
    {
        Dialog.alert("in the while");
        r = c.getRow();
        i++;
Dialog.alert(r.getString(0)+r.getString(1)+r.getString(2)+r.getString(3));
        //name1.setText(r.getString(0));
        //email1.setText(r.getString(1));
        //phone1.setText(r.getString(2));
        //skype1.setText(r.getString(3));
    }
    st.close();
    data.close();
}
    catch (Exception e)
    {
    e.printStackTrace();
    Dialog.alert(e.toString());
}

Thanks in advance...

Saran

Well, it would be useful if we can say which line threw the exception and if you could be a little more specific about what 'some exception' is in reality.

I think, however, is that the problem is how you create your declaration. Instead of directly in the statement of interpolation "text":

st = data.createStatement("SELECT * FROM mobile WHERE name="+text);

You must create a query that contains a placeholder for text and then bind the text of the statement:

st = data.createStatement("SELECT * FROM mobile WHERE name=?");
st.prepare();
st.bind(1, text);

If this solves the problem, it's how you build such declarations in all cases.

Tags: BlackBerry Developers

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