Writing a SQL query through VB.net to oracle

Hey, i need to connect to oracle when i press a button, and ask this SQL query:

SELECT oi.vare_nr, oi.ans_nr, COUNT(*)
FROM ordreinfo oi, vare v, ansatt a
WHERE v.vare_nr = oi.vare_nr
AND a.ans_nr = oi.ans_nr
GROUP BY oi.vare_nr, oi.ans_nr;

after this i need to get the information i receive from the SQL query to a listbox, how do i do this?


I was thinking something like this (its some variables there in norwegian, but you understand :))

I dont understand how i should implement this SQL query to my code, and i dont know if this is the correct way to go :)

Dim forbindelse As New System.Data.OracleClient.OracleConnection
 
        forbindelse.ConnectionString = "user id=****;password=****;data source=oracle.*******"
        forbindelse.Open()
 
        Dim setning As String = "sql query?????"
 
 
        Dim kommando As New System.Data.OracleClient.OracleCommand(setning, forbindelse)
 
 
        Dim dataleser As OracleClient.OracleDataReader
        dataleser = kommando.ExecuteReader()

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