欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  数据库

DBHelper连接oracle数据库类

程序员文章站 2022-06-12 14:49:29
...

%-- Name: Author: Description: --% %@ CodeTemplate Language=C# TargetLanguage=Text Src= Inherits= Debug=False Description=Template description here. % %@ Property Name=SampleStringProperty Type=System.String Default=SomeValue Optional=True

Name:
Author:
Description:
--%>





using System;
using System.Collections.Generic;
using System.Text;
using System.Data.OracleClient;
using System.Data;
using System.Configuration;

namespace WindowsFormsApplication1
{
public class DBHelper
{
public static string ConnString
{
get
{
return ConfigurationManager.ConnectionStrings["db"].ConnectionString;
}
}
public static OracleConnection Connection
{
get
{
return new OracleConnection(ConnString);
}
}


public static int ExecuteCommand(string sql)
{
OracleCommand cmd = new OracleCommand(sql, Connection);
cmd.Connection.Open();
try
{
int result = cmd.ExecuteNonQuery();
return result;
}
finally
{
cmd.Connection.Close();
cmd.Connection.Dispose();
}
}

public static int ExecuteCommand(string sql, OracleParameter[] values)
{
OracleCommand cmd = new OracleCommand(sql, Connection);
cmd.Connection.Open();
try
{
cmd.Parameters.AddRange(values);
return cmd.ExecuteNonQuery();
}
finally
{
cmd.Connection.Close();
cmd.Connection.Dispose();
}
}

public static int GetScalar(string sql)
{
OracleCommand cmd = new OracleCommand(sql, Connection);
cmd.Connection.Open();
try
{
int result = Convert.ToInt32(cmd.ExecuteScalar());
return result;
}
finally
{
cmd.Connection.Close();
cmd.Connection.Dispose();
}
}

public static int GetScalar(string sql, OracleParameter[] values)
{
OracleCommand cmd = new OracleCommand(sql, Connection);
cmd.Connection.Open();
try
{
cmd.Parameters.AddRange(values);
int result = Convert.ToInt32(cmd.ExecuteScalar());
return result;
}
finally
{
cmd.Connection.Close();
cmd.Connection.Dispose();
}
}

public static OracleDataReader GetReader(string sql)
{
OracleCommand cmd = new OracleCommand(sql, Connection);
cmd.Connection.Open();
OracleDataReader reader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
return reader;
}

public static OracleDataReader GetReader(string sql, OracleParameter[] values)
{
OracleCommand cmd = new OracleCommand(sql, Connection);
cmd.Parameters.AddRange(values);
cmd.Connection.Open();
OracleDataReader reader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
return reader;
}

public static DataSet GetDataSet(string sql)
{
DataSet ds = new DataSet();
OracleCommand cmd = new OracleCommand(sql, Connection);
try
{
OracleDataAdapter da = new OracleDataAdapter(cmd);
da.Fill(ds);
return ds;
}
finally
{
cmd.Connection.Dispose();
}
}

public static DataSet GetDataSet(string sql, OracleParameter[] values)
{
DataSet ds = new DataSet();
OracleCommand cmd = new OracleCommand(sql, Connection);
try
{
cmd.Parameters.AddRange(values);
OracleDataAdapter da = new OracleDataAdapter(cmd);
da.Fill(ds);
return ds;
}
finally
{
cmd.Connection.Dispose();
}
}

}
}

public string SampleMethod()
{
return "Method output.";
}