Question

How can I read with SQL COUNT(*) the Number of entries

Hi,
I don’t know to read the number of entries in a table. (I would like to use asp:Repeader)

sql = "SELECT COUNT(*) FROM Table";

---

<asp:Repeater id="Repeater01" runat="server">
 <ItemTemplate>
  <%# DataBinder.Eval(Container.DataItem, "????????") %>
 </ItemTemplate>
</asp:Repeater>

What is the ???? Statement?
Thanks.

Edit: This is my SQL-Statement:

select t.tip_adi, count(oda.oda_tip_id) from oteldb.tip t 
left join (select oda_tip_id from oteldb.oda o 
       where not exists (
              select null from oteldb.rezervasyon r 
              where r.rezervasyon_oda_id = o.oda_id 
              and r.rezervasyon_gt <= '2012-01-22' 
              and '2012-01-03' <= r.rezervasyon_c
       ) ) oda on oda.oda_tip_id = t.tip_id 
group by t.tip_adi

Answer 1

You need to alias the COUNT(*), like this:

sql = "SELECT COUNT(*) AS MyCount FROM Table";

Now you have a defined column name you can begin to use as MyCount.

So now you can do:

<%# DataBinder.Eval(Container.DataItem, "MyCount") %>

Based on your comment your query would become this:

select t.tip_adi, count(oda.oda_tip_id) AS MyCount from oteldb.tip t left join (select oda_tip_id from oteldb.oda o where not exists (select null from oteldb.rezervasyon r where r.rezervasyon_oda_id = o.oda_id and r.rezervasyon_gt <= '2012-01-22' and '2012-01-03' <= r.rezervasyon_ct) ) oda on oda.oda_tip_id = t.tip_id group by t.tip_adi

Notice the “MyCount”. Now you can use what I posted above to bind that value.