I got an OleDbException saying that "Missing semicolon (;) at end of SQL statement." I got confused if the UPDATE statement is correct or not. In my code, I test the update statement using a button. Can anyone help me? I want to add 1 to the variable in order to increase its value; number of bottles. I am using Microsoft Access Database. Primary id is ID then Unique is room_number.
This is my Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'====test number of bottles=============
Dim bottlecount As Integer 'variable used in order to increase the value of no. of bottle/s used
bottlecount = Form3.lblBottle.Text
bottlecount += 1
Form3.lblBottle.Text = bottlecount
roomhold = 1
Dim statement As String = "UPDATE tblPatientInfo SET bottle_used='" & bottlecount & "' WHERE room_number= '" & roomhold & "' ORDER BY ID ;"
Dim cmd As New OleDbCommand
With cmd
.CommandText = statement
.Connection = Conn
Conn.Open()
.ExecuteNonQuery()
End With
Conn.Close()
End Sub
===after applying the changes========== This is my code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim bottlecount As Integer = CInt(Form3.lblBottle.Text) + 1
Form3.lblBottle.Text = bottlecount
roomhold = 1
Dim statement As String = "UPDATE tblPatientInfo SET bottle_used = @bottlecount"
statement &= "WHERE room_number = @roomhold"
Dim cmd As New OleDbCommand
With cmd
.Connection = Conn
.CommandType = CommandType.Text
.CommandText = statement
.Parameters.AddWithValue("@bottlecount", bottlecount)
.Parameters.AddWithValue("@roomhold", roomhold)
Conn.Open()
.ExecuteNonQuery()
End With
Any help would be appreciated. Thanks!
UPDATE
is not allowed to have ORDER BY
clause. If you want you update to be order, create a subquery of it which contains ordered list for updates. When using ADONet, please make sure your query is parameters. Get used of SQLCommand and Parameters
. Try this edited code if it will work for you
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim bottlecount As Integer = cint(Form3.lblBottle.Text) + 1
Form3.lblBottle.Text = bottlecount
Dim roomhold AS Integer = 1
Dim statement As String = "UPDATE tblPatientInfo SET bottle_used = @bottlecount "
statement &= "WHERE room_number = @roomhold "
Using conn as New SqlConnection("ConnectionStringHere")
Using comm as New SqlCommand()
With comm
.Connection = conn
.CommandType = CommandType.Text
.CommandText = statement
.Parameters.AddWithValue("@bottlecount", bottlecount )
.Parameters.AddWithValue("@roomhold" , roomhold)
End With
Try
conn.Open()
comm.ExecuteNonQuery()
Catch (ex as SQlException)
' add message here '
Finally
conn.Close()
End Try
End Using
End Using
End Sub