读取SQL表生成TREEVIEW
Public Function GetDataTable()
Dim myComm As New SqlClient.SqlCommand("SELECT cauth_id,cauth_name,igrade,csupauth_id,csupauth_name from MAIN_TREE01 ", sqlconnection1)
Dim sdapt As New SqlClient.SqlDataAdapter(myComm)
Dim ds As New DataSet
sdapt.Fill(ds)
Return ds.Tables(0)
End Function
Private Sub GetTreeViewDataBound(ByVal nodes As TreeNodeCollection, ByVal csupauth_id As String, ByVal dt As DataTable)
Dim dr As DataRow
If (dt.Rows.Count > 0) Then
Dim node As TreeNode
Dim drs As DataRow() = dt.Select("csupauth_id='" + csupauth_id + "'")
For Each dr In drs
node = New TreeNode()
node.Text = dr(1).ToString()
node.Name = dr(0).ToString
nodes.Add(node)
GetTreeViewDataBound(node.Nodes, node.Name.Trim(), dt)
Next
End If
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TreeView1.Nodes.Clear()
GetTreeViewDataBound(TreeView1.Nodes, "A", GetDataTable())
TreeView1.ExpandAll()
End Sub
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错误如下：
Database character set (AL32UTF8) and Client character set (ZHS16GBK) are different.
Character set conversion may cause unexpected results.
Note: you can set the client character set through the NLS_LANG environment variable or the NLS_LANG registry key in
HKEY_LOCAL_MACHINE\SOFTWARE\ ......
原址 http://technet.microsoft.com/ja-jp/library/cc411406.aspx
看了一篇SQL2005关于Transact-SQL的强化技能的介绍，觉得很有用处，简单总结了一下。
（一）数据库做成
USE tempdb – 或者新建一个DB
CREATE TABLE SpeakerStats
(
speaker &n ......
et ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
ALTER function [dbo].[Get_StrArrayLength]
(
@str varchar(1024), --要分割的字符串
@split varchar(10) --分隔符号
)
returns int
as
begin
declare @location int
declare @start int
declare @length int
&nbs ......
1: /*
2: 通过SQL 语句备份数据库
3: */
4: BACKUP DATABASE mydb
5: TO DISK ='C:\DBBACK\mydb.BAK'
6: --这里指定需要备份数据库的路径和文件名,注意:路径的文件夹是必须已经创建的.文件名可以使用日期来标示
7:
8: /*
9: 通过SQL语句还原数据库
10: */
11: USE ma ......
SELECT EMP_ID,EMP_NO,LOGIN_NAME,EMP_NAME,SITE_CODE,DEPT_CODE,
JOB_DESC,HRMS_DEPT_CODE,MAIL_ACCOUNT,EXT_NO ,
(case when SITE_CODE='QCS' then 1 else 2 end) site
from dbo.AM_EMPLOYEE
WHERE ACTIVE = 'Y' AND EXT_NO = '6006'
order by site
想要在员工表中查出电话号为6006的员工的英文名来作为系统页面� ......
