count the record in database?

Question

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i have this database table called people

HTML

People
peopleID peopleName relationship customerID
1         A          aunty         1
2         B          aunty         1
3         C          second uncle  1
4         D          aunty         2

how am i going to count the number of people where the customerID = 1 and if the relationship is the same, it is counted as 1

so from the database table above, i should get the result of 3 and put the result of 3 in Label1 in gridview?

i can get the count value for the only where the customerID =1 but i can't figure out how am i going to count if the relationship part

VB

Protected Sub GridView2_RowDataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView2.RowDataBound
        If e.Row.RowType = DataControlRowType.DataRow Then
            'Do your processing here...

            Dim txt As TextBox = DirectCast(e.Row.FindControl("Label1"), TextBox)
            Dim adapter As New SqlDataAdapter
            Dim ds As New DataSet
            'Dim sql As String

            Dim connectionString = ConfigurationManager.ConnectionStrings("ProjData").ConnectionString
            Dim myConn As New SqlConnection(connectionString)

            Dim cmd = "Select * From People Where customerID='" & Session("customerID") & "' "

            ' Dim myCmd As New SqlCommand(cmd, myConn)

            Try
                myConn.Open()
                Dim myCmd As New SqlCommand(cmd, myConn)
                adapter.SelectCommand = myCmd
                adapter.Fill(ds, "People")
                adapter.Dispose()
                myCmd.Dispose()
                txt.Text = ds.Tables(0).Rows.Count



            Catch ex As Exception
                MsgBox("Can not open connection ! ")
            End Try
        End If
    End Sub

Posted 30-Jan-12 20:43pm

cutexxbaby

Updated 30-Jan-12 20:45pm

v2

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Comments

manognya kota 31-Jan-12 3:07am

If you are counting based on customerid and relation, you would get count of 2 for customerid 1.Is my understanding correct?

3 solutions

Solution 1

Try This And tell me is it what u want or any thing else

SQL

SELECT        customerID, relationship , COUNT(*) AS Expr1
FROM            Result
WHERE        (customerID= 1)
GROUP BY customerID, relationship

Posted 30-Jan-12 20:57pm

CRDave1988

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vjdeeds · Accepted Answer · 2012-01-30T21:03:00

Solution 2

Do you need a query??
Something like this,

SQL

(SELECT COUNT(distinct(relationship)) FROM People WHERE customerID=1)

I hope this help.

Thanks!!

Posted 30-Jan-12 21:03pm

vjdeeds

Comments

vjdeeds 31-Jan-12 5:54am

Please mark it as a solution if it helped you.

Sanjay K. Gupta · Accepted Answer · 2012-01-30T21:06:00

The code would be

VB

Protected Sub GridView2_RowDataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView2.RowDataBound
        If e.Row.RowType = DataControlRowType.DataRow Then
            'Do your processing here...

            Dim txt As TextBox = DirectCast(e.Row.FindControl("Label1"), TextBox)
            Dim adapter As New SqlDataAdapter
            Dim ds As New DataSet
            'Dim sql As String

            Dim connectionString = ConfigurationManager.ConnectionStrings("ProjData").ConnectionString
            Dim myConn As New SqlConnection(connectionString)
 
            Dim cmd = "SELECT COUNT(distinct(relationship)) FROM People WHERE " & Session("customerID") & " "
 
            ' Dim myCmd As New SqlCommand(cmd, myConn)

            Try
                myConn.Open()
                Dim myCmd As New SqlCommand(cmd, myConn)
                adapter.SelectCommand = myCmd
                txt.Text = adapter.SelectCommand.ExecuteScalar().ToString()
                adapter.Dispose()
                myCmd.Dispose()
               
 

 
            Catch ex As Exception
                MsgBox("Can not open connection ! ")
            End Try
        End If
    End Sub