using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.OracleClient;
using System.Data;

namespace Winform
{
    public class DBFactory
    {
       
        static string strConn = "Data Source=yzl;User ID=abc;Password=sss";
        OracleConnection conn = null;

        
        private OracleConnection GetOracleConnection() {
            conn = new OracleConnection(strConn);
            conn.Open();
            return conn;
        }
        private DataSet Command(string sql) {
            OracleConnection conn = GetOracleConnection();
            OracleCommand oraCmd = new OracleCommand(sql, conn);
            //ora.Open();
            OracleDataAdapter oda = new OracleDataAdapter(oraCmd);// ("SELECT * FROM FAIS.UNIT_BASE;",ora);
            System.Data.DataSet ds = new System.Data.DataSet();
            oda.Fill(ds);
            conn.Close();
            return ds;
        }

        public DataSet ExcuteDataSet(string sql)
        {
            return Command(sql);

        }
        public bool ExcuteSql(string sql)
        {
            try
            {
                Command(sql);
                return true;
            }
            catch
            {
                return false;
            }
        }
    }
}