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using(OleDbConnection conn = new OleDbConnection(""))
{
string strSql = "update pro set [name]=@name where name=@n ";
OleDbCommand cmd = new OleDbCommand(strSql, objConn);
cmd.Parameters.AddWithValue("@name", "");
cmd.Parameters.AddWithValue("@n", "");
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
}
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OleDbConnection thisConnection = new OleDbConnection("PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA Source=" + System.Web.HttpContext.Current.Server.MapPath("~/App_Data\\web1.mdb"));
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CREATE TABLE Product(model integer,
maker varchar(20),
CONSTRAINT SAND PRIMARY KEY (model),
CONSTRAINT PANDA FOREIGN KEY (model) REFERENCES PC (model)
ON DELETE CASCADE ......