Public Class Form1Class Form1 Private Sub Form1_Load()Sub Form1_Load(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles MyBase.Load Dim ParentNode1 As TreeNode Dim ParentNode2 As TreeNode
'在工作管理員的應用程式欄中隱藏Private Declare Function GetWindow Lib "user32" (ByVal hwnd As Long, ByVal wCmd As Long) As LongPrivate Declare Function ShowWindow Lib "user32" (ByVal hwnd As Long, ByVal nCmdShow As Long) As LongPrivate Const SW_HIDE = 0Private Cons
在大的資料庫應用中,經常因為各種原因遇到重複的記錄,造成資料的冗餘和維護上的不便。1.用rowid方法2.用group by方法3.用distinct方法1。用rowid方法據據oracle帶的rowid屬性,進行判斷,是否存在重複,語句如下:查資料:select * from table1 a where rowid !=(select max(rowid) from table1 b where a.name1=b.name1 and
Private Declare Function GetCursorPos()Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As LongPrivate Declare Sub GetClientRect()Sub GetClientRect Lib "user32" (ByVal hwnd As Long, lpRect As RECT)Private Declare Function MoveWindow()Function
Private Declare Sub ClipCursor()Sub ClipCursor Lib "user32" (lpRect As RECT)Private Declare Sub GetClientRect()Sub GetClientRect Lib "user32" (ByVal hwnd As Long, lpRect As RECT)Private Declare Sub ClientToScreen()Sub ClientToScreen Lib "user32" (ByV