Subject | Fastest way to check if Firebird table exists |
---|---|
Author | RB Smissaert |
Post date | 2009-05-11T18:48:16Z |
Need a fast function in VB that checks if a Firebird (1.5) table exists and
came up with:
Public Function FirebirdTableExists(strTable As String) As Long
Dim strSQL As String
Dim rs As ADODB.Recordset
'will give 1 if table exists and has records
'will give 0 if table exists, but has no records
'will give -1 if table doesn't exist
'-----------------------------------------------
On Error GoTo ERROROUT
strSQL = "SELECT FIRST 1 RDB$DB_KEY FROM " & strTable
Set rs = New ADODB.Recordset
rs.Open strSQL, oADOConn, adOpenForwardOnly, adLockReadOnly, adCmdText
If Not rs.EOF Then
FirebirdTableExists = 1
End If
Exit Function
ERROROUT:
FirebirdTableExists = -1
End Function
Anything wrong with this or any suggestions for something better?
RBS
came up with:
Public Function FirebirdTableExists(strTable As String) As Long
Dim strSQL As String
Dim rs As ADODB.Recordset
'will give 1 if table exists and has records
'will give 0 if table exists, but has no records
'will give -1 if table doesn't exist
'-----------------------------------------------
On Error GoTo ERROROUT
strSQL = "SELECT FIRST 1 RDB$DB_KEY FROM " & strTable
Set rs = New ADODB.Recordset
rs.Open strSQL, oADOConn, adOpenForwardOnly, adLockReadOnly, adCmdText
If Not rs.EOF Then
FirebirdTableExists = 1
End If
Exit Function
ERROROUT:
FirebirdTableExists = -1
End Function
Anything wrong with this or any suggestions for something better?
RBS