|
ASP.NET访问Oracle数据库的方法(2) "create table OracleTypesTable (MyVarchar2 varchar2(3000),MyNumber number(28,4)
Primary key ,MyDate date,MyRaw RAW(255))";
插入一行数据
"insert into OracleTypesTable values ('test',4,to_date('2000-01-11
12:54:01','yyyy-mm-dd hh24:mi:ss'),'0001020304')";
下面的程序就是要通过.NET for Oracle组件来访问Oracle数据库，并且显示出这行数据。在程序中请注意前文中所说明的类，并且联想.NET中关于数据处理类的使用方法。
1. using System;
2.using System.Web;
3.using System.Web.UI;
4.using System.Web.UI.HtmlControls;
5.using System.Web.UI.WebControls;
6.using System.Data;
7.using System.Data.OracleClient;
8.public class pic2:Page {
9. public Label message;
10. public void Page_Load(Object sender,EventArgs e)
11. {
//设置连接字符串
12. string connstring="Data Source=eims;user=zbmis;passWord=zbmis;";
//实例化OracleConnection对象
13. OracleConnection conn=new OracleConnection(connstring);
14. try
15. {
16. conn.Open();
//实例化OracleCommand对象
17. OracleCommand cmd=conn.CreateCommand();
18. cmd.CommandText="select * from zbmis.OracleTypesTable";
19. OracleDataReader oracledatareader1=cmd.ExecuteReader();
//读取数据
20. while (oracledatareader1.Read()) {
//读取并显示第一行第一列的数据
21. OracleString oraclestring1=oracledatareader1.GetOracleString(0);
22. Response.Write("OracleString " +oraclestring1.ToString());
//读取并显示第一行第二列的数据
23. OracleNumber oraclenumber1 =oracledatareader1.GetOracleNumber(1);
24. Response.Write("OracleNumber "+oraclenumber1.ToString());
//读取并显示第一行第三列的数据
25. OracleDateTime oracledatetime1=oracledatareader1.GetOracleDateTime(2);
26. Response.Write("OracleDateTime " +oracledatetime1.ToString());
//读取并显示第一行第四列的数据
27. OracleBinary oraclebinary1=oracledatareader1.GetOracleBinary(3);
28. if(oraclebinary1.IsNull==false)
| 
