ACCESS SQL连接代码
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SQL:
string strConnection = "uid=sa;pwd=123;";
//账户,密码
strConnection += "Initial Catalog=master;Server=TSINNFENG;";
//表分类,服务器名
SqlConnection objConnection = new SqlConnection(strConnection);
//生成连接对象
//Data Source=TSINNFENG;Initial Catalog=master;Integrated Security=True
string strCmd = "select * from student";
objConnection.Open();
SqlDataAdapter myCmd = new SqlDataAdapter(strCmd, strConnection);
DataSet myDataSet = new DataSet();
myCmd.Fill(myDataSet, "student");
dataGridView1.DataSource = myDataSet.Tables["student"];
objConnection.Close();
ACCESS:
//连接数据库
string strConnection = "Provider=Microsoft.Jet.OleDb.4.0;";//access2007为Microsoft.ACE.OLEDB.12.0;
string CurrPath = System.Environment.CurrentDirectory.ToString() + @"/database/plan.mdb";//access2007为plan.accdb
strConnection += "Data Source =" + CurrPath;
string weekDayStr = System.DateTime.Now.DayOfWeek.ToString();
//MessageBox.Show(weekDayStr);
string strCmd = "SELECT * FROM WeekDay WHERE WkDay=" + "'" + weekDayStr + "'";
//OleDbDataAdapter myCommand = new OleDbDataAdapter(strCmd, strConnection);
//DataSet myDataSet=new DataSet();
//myCommand.Fill(myDataSet,"WeekDay");
//dataGridView1.DataSource = myDataSet.Tables["WeekDay"];
//richTextBox1.Text = myDataSet
//MessageBox.Show(myDataSet.ToString());
OleDbConnection myConn = new OleDbConnection(strConnection);
myConn.Open();
//把数据库一行一行的读出
OleDbCommand sqlcmd = new OleDbCommand(strCmd, myConn);
OleDbDataReader Odr = sqlcmd.ExecuteReader();
int cols = Odr.FieldCount;
object[] values = new object[cols];
string labelStr = "";
while (Odr.Read())
{
Odr.GetValues(values);
for (int i = 0; i < values.Length; i++)//读取列数
{
//labelStr += values[i].ToString();
//MessageBox.Show(values[i].ToString());
if (i == 0)
{
labelStr += "今天是:" + values[i].ToString() + "/n/n" + "今日任务:/n/n";
}
if (i == 1)
{
labelStr += "上午任务:" + values[i].ToString() + "/n";
}
if (i == 2)
{
labelStr += "中午任务:" + values[i].ToString() + "/n";
}
if (i == 3)
{
labelStr += "下午任务:" + values[i].ToString() + "/n";
}
if (i == 4)
{
labelStr += "晚上任务:" + values[i].ToString() + "/n";
}
}
labelStr += "/n";
}
Odr.Close();
//按行读取数据库结束
myConn.Close();
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