access 的多个left join 要加括号
string sql = "select a.orderId,a.UserName,b.CodeValue as Delivery ,a.DeliveryAddress,a.PhoneNum,c.CodeValue as Payment,d.CodeValue as OrderStatus,d.CodeValue as OrderStatusID,a.OrderTime,a.Merchant from (( m_Order a ";
sql += " left join ( select CodeId,CodeValue from M_DefaultValue where TableId='Delivery') as b on a.Delivery =b.CodeId )";
sql += " left join ( select CodeId,CodeValue from M_DefaultValue where TableId='Payment') as c on a.Payment=c.CodeId )";
sql += " left join ( select CodeId,CodeValue from M_DefaultValue where TableId='OrderStatu') as d on a.OrderStatus =d.CodeId ";
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今天update access数据库时，使用了参数化的方式，结果不报错，但是数据也没有更新。经过google发现access使用参数化时，参数位置必须和赋值顺序相同才行，否则更新时就会出现数据无法更新但是也不报错的怪现象。
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从Access数据库导入到SQL
方法一:
在MSsql中要简历ODBC..方法比较笨点..
方法二:
直接从Access升迁到MSsql..
因为Access数据库有设置密码..还真不好搞..搞了好几次都失败了..
利用方法二..一次成功..
用数据库升迁...简单...
建议使用第二种方法导入ACCESS数据库到MSSQL数据库中..省事!!! ......
protected void Button1_Click(object sender, EventArgs e)
{
/*=============测试通过===============*/
OleDbConnection con = new
OleDbConnection("Provider=Microsoft.Jet.OleDb.4.0;Data
Sou ......
第一种方法：
<?php
class Access{
function getConn(){
$conn = @new COM("ADODB.Connection") or die ("ADO连接失败!");
$connstr = "DRIVER={Microsoft Access Driver (*.mdb)}; DBQ=" . realpath(__IMP ......
Take Equity Collection System as an example, Some other office collegues want to access it from home without VPN, The way to check is:
1. Check if it's limited in network, this needs to confirm with network people
2. If the step 1 passed, get the external IP address of the system, map ......
