I'm new to sqlce and have come to realize that it doesn't support the IF EXISTS statements...
Is there a better workaround for this?
I originally wanted this query to run:
I got it to work with sqlce as follows:
Question: Are there any other simpler tricks to substitute IF EXISTS in sqlce? Thanks!
Rob
Is there a better workaround for this?
I originally wanted this query to run:
VB.NET:
IF EXISTS (SELECT * FROM PARTS WHERE PARTNO = @PARTNO)
UPDATE PARTS SET QTYOH = QTYOH + @QTYOH WHERE PARTNO = @PARTNO
ELSE
INSERT INTO PARTS (PARTNO, QTYOH)
VALUES (@PARTNO, @QTYOH)
I got it to work with sqlce as follows:
VB.NET:
'SETUP THE CONNECTION
Dim CONSTRING As String = "DATA SOURCE = C:\TECHTOOLS.SDF"
Dim CON As New SqlCeConnection(CONSTRING)
'ASIGN THE EXECUTENONQUERY RESULT TO A VARIABLE
Dim RESULT As Integer
'DEFINE SQL STATEMENTS
Dim SQLUPDATE As String = "UPDATE PARTS SET QTYOH = QTYOH + @QTYOH WHERE PARTNO = @PARTNO"
Dim SQLINSERT As String = "INSERT INTO PARTS (PARTNO, QTYOH)" & _
"VALUES (@PARTNO, @QTYOH)"
Dim CMD As New SqlCeCommand(SQLUPDATE, CON)
Dim CMDNEXT As New SqlCeCommand(SQLINSERT, CON)
CMD.Parameters.Add("@PARTNO", TextBox1.Text)
CMD.Parameters.Add("@QTYOH", TextBox2.Text)
CMDNEXT.Parameters.Add("@PARTNO", TextBox1.Text)
CMDNEXT.Parameters.Add("@QTYOH", TextBox2.Text)
CON.Open()
RESULT = CMD.ExecuteNonQuery()
If RESULT = 0 Then
CMDNEXT.ExecuteNonQuery()
End If
CON.Close()
Question: Are there any other simpler tricks to substitute IF EXISTS in sqlce? Thanks!
Rob