System.Data.OracleClient.dll方式操作oracle数据库
一.查询语句：
using (OracleConnection conn = new OracleConnection(System.Configuration.ConfigurationManager.ConnectionStrings["local_Orcl"].ConnectionString))
{
conn.Open();
using (OracleCommand cmd = conn.CreateCommand())
{
try
{
cmd.CommandText = "select * from HLB_HIS_REQUISITION";
DataTable dt = null;
OracleDataAdapter adapter = new OracleDataAdapter();
adapter.SelectCommand = cmd;
dt = new DataTable();
adapter.Fill(dt);
cmd.Parameters.Clear(); dataGridView1.DataSource = dt;
}
catch (Exception ee)
{
MessageBox.Show(ee.Message.ToString() + "\r\n" + ee.StackTrace.ToString());
cmd.Dispose();
conn.Close();
conn.Dispose();
}
}
}
二.插入语句：
using (OracleConnection conn = new OracleConnection(System.Configuration.ConfigurationManager.ConnectionStrings["local_Orcl"].ConnectionString))
{
conn.Open();
using (OracleCommand cmd = conn.CreateCommand())
{
try
{
cmd.CommandText = "insert into hlb_his_requisition(requisition_id, patient_name, patient_sex, patient_age, patient_bed, charge_name, sample_class, requisition_state)values(1,'张三', 1, 1, 1, 1, 1, 1)";
cmd.ExecuteNonQuery();
}
catch (Exception ee)
{
MessageBox.Show(ee.Message.ToString() + "\r\n" + ee.StackTrace.ToString());
cmd.Dispose();
conn.Close();
conn.Dispose();
}
}
}
三.连接字符串：
<add name="local_Orcl" connectionString="Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.31.11)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ORCL)));User ID=scott;Password=123"/>
四.是否乱码：
五.是否需要安装客户端：