[英]Excel VBA - Loop through recordset
I have an issue when looping through a recordset; 遍历记录集时遇到问题; here is the code: 这是代码:
Dim query as String
query = "SELECT * FROM test WHERE " & filter
' Declare variables'
Dim objMyConn As ADODB.Connection
Dim objMyCmd As ADODB.Command
Dim objMyRecordset As ADODB.Recordset
Dim objRst As ADODB.Recordset
Set objMyConn = New ADODB.Connection
Set objMyCmd = New ADODB.Command
Set objMyRecordset = New ADODB.Recordset
'Open Connection'
objMyConn.ConnectionString = "Provider=SQLOLEDB;Data Source=MyServer;Initial Catalog=MyDB;User ID=test;Password=test"
objMyConn.Open
'Set and Excecute SQL Command'
Set objMyCmd.ActiveConnection = objMyConn
objMyCmd.CommandText = query
objMyCmd.CommandType = adCmdText
'Open Recordset'
Set objMyRecordset.Source = objMyCmd
objMyRecordset.CursorLocation = adUseClient
objMyRecordset.CursorType = adOpenStatic
objMyRecordset.Open
Dim FindRecordCount As Integer
If objMyRecordset.EOF Then
FindRecordCount = 0
Else
objMyRecordset.MoveLast
FindRecordCount = objMyRecordset.RecordCount ' In this case it returns 4
End If
Do Until objMyRecordset.EOF = True
' Get variables
...
' Move to next Record
objMyRecordset.MoveNext
Loop
When I check how many rows has the recordset , it returns 4, but goes only once through the loop. 当我检查记录集有多少行时,它返回4,但在循环中仅执行一次。 In this case, it should loop 4 times. 在这种情况下,它应该循环4次。
您在循环之前使用过movelast
,因此,如果要实际迭代所有记录,则需要先movefirst
。
在完全相同的情况下,您无需编写“ EOF = true”,则“ EOF”公式为true:
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