Image To Access
using System;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
namespace ImageDB
{
public partial class FormImageAccess : Form
{
#region 自定义对象
private OleDbConnection ole;
private DataTable table;
#endregion
public FormImageAccess()
{
#region
InitializeComponent();
openFileImage.Filter = "图像文件|*.bmp;*.gif;*.jpg;*.jpeg;*.png|所有文件|*.*";
pictureBox1.SizeMode = PictureBoxSizeMode.Zoom; // 图像大小按其原有的大小比例被增加或减小。
table = new DataTable();
DataColumn column = table.Columns.Add("Name", typeof(String));
table.Columns.Add("Image", typeof(Image));
table.Constraints.Add("PK", column, true);
OleDbConnectionStringBuilder builder = new OleDbConnectionStringBuilder();
builder.Provider = "Microsoft.Jet.OLEDB.4.0"; // "Microsoft.ACE.OLEDB.12.0"
builder.DataSource = @"|DataDirectory|\Images.mdb";
 
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//读取标准列表
private void setModelList()
{
OleDbConnection Connection = null;
&n ......
问题:
有二个表
A表:
id Comment yuyan lanmuid
1 aaaa chinese 1
2 bbbb english 1
3 cccc chinese 2
4 ddddd english 2
B表:
id lanmu
1 公司简介
2 联系方式
3 经营范围
在删除B表的一行数据时会把A表关联ID的数据也删除,请问有什么好方法?我不想操作2次删除的语句.
解决方 ......
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This is one of the best and most secure methods in assuri ......
网上搜集,备用
下表列出了 ANSI SQL 数据类型和等效的 Microsoft Jet 数据库引擎 SQL数据类型还有它们的有效同义字以及 等效的 Microsoft SQL Server数据类型。
ANSI SQL
数据类型
Microsoft Access
SQL 数据类型
同义词
Microsoft SQL
Server 数据类型
BIT、BIT VARYING
BINARY(参见注释)
VARBINARY、 ......
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 j ......