Question

What i try to do is, counting my rows in this SQL statement, as well as want to retrieve the data into the Repeater. This is ASP.NET / C#.

SELECT COUNT(*) AS 'numbersOfOrdres' 
FROM customers 
INNER JOIN orders ON customers.customer_id = orders.order_customer_id

Doesn’t seems to work, i’ll keep getting the error "Does not contain 'THEN MY FIELD NAME' in the Repeater.

EDIT:
Repeater code

<asp:Repeater ID="customerOrdersRepeater" runat="server">
<HeaderTemplate>
    <table>
    <tr>
        <td><b>Customer name</b></td><td><b>Customer adresse</b></td><td>Numbers of orders</td>
    </tr>
</HeaderTemplate>
<ItemTemplate>
    <tr>
        <td><%# Eval("customer_name") %></td><td><%# Eval("customer_adresse") %></td><td><%# Eval("numbersOfOrdres") %></td>
    </tr>
</ItemTemplate>
<FooterTemplate>
    </table>
</FooterTemplate>

Answer 1

You would need to aggregate your results using GROUP BY. It looks like you want a row per unique customer/customer address. So assuming these are held in customers.name and customers.adresse your query would be

SELECT customers.name AS customer_name, customers.adresse AS customer_adresse, 
    COUNT(*) AS 'numbersOfOrdres' 
FROM customers 
INNER JOIN orders ON customers.customer_id = orders.order_customer_id
GROUP BY customers.name, customers.adresse