How do you perform a SUM query through visual basic? - mysql

Question

I am trying to to add up the points a certain user has earned from a mysql database table
My code returns an error saying the syntax is incorrect, I can't figure out how to make it work>
Here is my code:
Imports MySql.Data.MySqlClient
Public Class Leaderboard
Dim MysqlConn As MySqlConnection
Dim COMMAND As MySqlCommand
Private Sub submitBtn_Click(sender As Object, e As EventArgs) Handles submitBtn.Click
MysqlConn = New MySqlConnection
MysqlConn.ConnectionString =
"server=localhost;userid=root;password=root99;database=database"
Dim READER As MySqlDataReader
Try
MysqlConn.Open()
Dim Query As String
Query = "select SUM(Points) * from database.progress where candidate_number_fk = '" & textbox_can.Text & "'"
COMMAND = New MySqlCommand(Query, MysqlConn)
READER = Command.ExecuteReader
MessageBox.Show("You have successfully submitted your score")
MysqlConn.Close()
Catch ex As MySqlException
MessageBox.Show(ex.Message)
Finally
MysqlConn.Dispose()
End Try
My.Forms.Menu1.Show()
Me.Hide()
End Sub
End Class

Answer 1

This is incorrect SQL syntax:
select SUM(Points) *
from database.progress
where . . .
Presumably, you intend:
select SUM(Points) as sumpoints
from database.progress
where . . .
You can then pull the field from the result set by name.
Note: There may be other problems with your code. This only addresses the SQL query.