/// <summary>
/// Oracle Help 封装使用
/// </summary>
/// <typeparam name="T"></typeparam>
public class OracleSQLDapperHelper<T> where T : class
{
/// <summary>
/// 数据库连接字符串
/// </summary>
/* private static readonly string connectionString =
ConfigurationManager.ConnectionStrings["OracleConn"].ConnectionString;*/
private static readonly string connectionString = @"Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)
(HOST=192.168.0.139)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=m4mestdb)))
;User ID=yms;Password=yms;";
/// <summary>
/// 查询列表
/// </summary>
/// <param name="sql">查询的sql</param>
/// <param name="param">替换参数</param>
/// <returns></returns>
public static List<T> Query(string sql, object param)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
return con.Query<T>(sql, param).ToList();
}
}
/// <summary>
/// 查询第一个数据
/// </summary>
/// <param name="sql"></param>
/// <param name="param"></param>
/// <returns></returns>
public static T QueryFirst(string sql, object param)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
return con.QueryFirst<T>(sql, param);
}
}
/// <summary>
/// 查询第一个数据没有返回默认值
/// </summary>
/// <param name="sql"></param>
/// <param name="param"></param>
/// <returns></returns>
public static T QueryFirstOrDefault(string sql, object param)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
return con.QueryFirstOrDefault<T>(sql, param);
}
}
/// <summary>
/// 查询单条数据
/// </summary>
/// <param name="sql"></param>
/// <param name="param"></param>
/// <returns></returns>
public static T QuerySingle(string sql, object param)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
return con.QuerySingle<T>(sql, param);
}
}
/// <summary>
/// 查询单条数据没有返回默认值
/// </summary>
/// <param name="sql"></param>
/// <param name="param"></param>
/// <returns></returns>
public static T QuerySingleOrDefault(string sql, object param)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
return con.QuerySingleOrDefault<T>(sql, param);
}
}
/// <summary>
/// 增删改
/// </summary>
/// <param name="sql"></param>
/// <param name="param"></param>
/// <returns></returns>
public static int Execute(string sql, object param)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
return con.Execute(sql, param);
}
}
/// <summary>
/// Reader获取数据
/// </summary>
/// <param name="sql"></param>
/// <param name="param"></param>
/// <returns></returns>
public static IDataReader ExecuteReader(string sql, object param)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
return con.ExecuteReader(sql, param);
}
}
/// <summary>
/// Scalar获取数据
/// </summary>
/// <param name="sql"></param>
/// <param name="param"></param>
/// <returns></returns>
public static object ExecuteScalar(string sql, object param)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
return con.ExecuteScalar(sql, param);
}
}
/// <summary>
/// Scalar获取数据
/// </summary>
/// <param name="sql"></param>
/// <param name="param"></param>
/// <returns></returns>
public static T ExecuteScalarForT(string sql, object param)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
return con.ExecuteScalar<T>(sql, param);
}
}
/// <summary>
/// 带参数的存储过程
/// </summary>
/// <param name="sql"></param>
/// <param name="param"></param>
/// <returns></returns>
public static List<T> ExecutePro(string proc, object param)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
List<T> list = con.Query<T>(proc,
param,
null,
true,
null,
CommandType.StoredProcedure).ToList();
return list;
}
}
/// <summary>
/// 事务1 - 全SQL
/// </summary>
/// <param name="sqlarr">多条SQL</param>
/// <param name="param">param</param>
/// <returns></returns>
public static int ExecuteTransaction(string[] sqlarr)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
using (var transaction = con.BeginTransaction())
{
try
{
int result = 0;
foreach (var sql in sqlarr)
{
result += con.Execute(sql, null, transaction);
}
transaction.Commit();
return result;
}
catch (Exception ex)
{
transaction.Rollback();
return 0;
}
}
}
}
/// <summary>
/// 事务2 - 声明参数
///demo:
///dic.Add("Insert into Users values (@UserName, @Email, @Address)",
/// new { UserName = "jack", Email = "[email protected]", Address = "上海" });
/// </summary>
/// <param name="Key">多条SQL</param>
/// <param name="Value">param</param>
/// <returns></returns>
public static int ExecuteTransaction(Dictionary<string, object> dic)
{
using (IDbConnection con = new OracleConnection(connectionString))
{
using (var transaction = con.BeginTransaction())
{
try
{
int result = 0;
foreach (var sql in dic)
{
result += con.Execute(sql.Key, sql.Value, transaction);
}
transaction.Commit();
return result;
}
catch (Exception ex)
{
transaction.Rollback();
return 0;
}
}
}
}
}