/// <summary>
/// 功能：对传入的SQL执行查询操作,返回单个值
/// 日期：2013-05-15
/// </summary>
/// <param name="sql">执行的数据库</param>
/// <returns></returns>
public static object ExecuteScalar(string sql)
{
return(OracleDBHelper.ExecuteScalar(sql, null, DataBaseType.DefaultDB));
}
/// <summary>
/// 功能：对传入的SQL执行查询操作,返回单个值
/// 日期：2013-05-15
/// </summary>
/// <param name="sql">执行的数据库</param>
/// <param name="parList">参数</param>
/// <returns></returns>
public static object ExecuteScalar(string sql, List <ParameterEntity> parList)
{
return(OracleDBHelper.ExecuteScalar(sql, parList, DataBaseType.DefaultDB));
}