首先要写连接字符串

可以在web.config里写上

复制代码 代码如下:
<connectionStrings>
<add name="oracleson" connectionString="Data Source=dingsenorcl;Persist Security Info=True;User ID=ds;Password=ds;Unicode=True" providerName="System.Data.OracleClient"/>
</connectionStrings>

<connectionStrings>
<add name="oracleson" connectionString="Data Source=dingsenorcl;Persist Security Info=True;User ID=ds;Password=ds;Unicode=True" providerName="System.Data.OracleClient"/>
</connectionStrings>

然后再后台调用
复制代码 代码如下:
string orclcon = ConfigurationManager.ConnectionStrings["oracleson"].ConnectionString;

string orclcon = ConfigurationManager.ConnectionStrings["oracleson"].ConnectionString;

然后要新建一个数据库连接对象

复制代码 代码如下:
OracleConnection conn = new OracleConnection(orclcon)

OracleConnection conn = new OracleConnection(orclcon)

创建一个OracleCommand对象来对数据库进行操作
复制代码 代码如下:
OracleCommand cmd = conn.CreateCommand()

OracleCommand cmd = conn.CreateCommand()打开连接

conn.Open();操作就行了

复制代码 代码如下:
cmd.CommandText = "insert into T_12(AAAA)values(:a)";
cmd.Parameters.AddWithValue(":a", TextBox1.Text); //参数替换oracle数据库要用: sqlserver数据库是@
cmd.ExecuteNonQuery();

cmd.CommandText = "insert into T_12(AAAA)values(:a)";
cmd.Parameters.AddWithValue(":a", TextBox1.Text); //参数替换oracle数据库要用: sqlserver数据库是@
cmd.ExecuteNonQuery();