cpcbillsys/CPCBILLSYS(v1003)/DAL/DBFactoryHelper.cs

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

namespace DAL
{
    public class DBFactoryHelper
    {
        private IDbInterface DBHelper;
        public DBFactoryHelper(string dbType, string conStr)
        {
            if (dbType == "1")
            {
                DBHelper = new DBHelperSql(conStr);
            }
            else if (dbType == "2")
            {
                DBHelper = new DbHelperOra(conStr);
            }
            else if (dbType == "3")
            {
                DBHelper = new DBHelperDm(conStr);
            }
            else if (dbType == "4")
            {
                this.DBHelper = new DBHelperMySql(conStr);
            }
        }
        public object GetSingle(string SQLString)
        {
            return DBHelper.GetSingle(SQLString);
        }
        /// <summary>
        /// 是否存在
        /// </summary>
        /// <param name="strSql"></param>
        /// <returns></returns>
        public bool Exists(string strSql)
        {
            return DBHelper.Exists(strSql);
        }
        /// <summary>
        /// 执行多条SQL语句，实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">多条SQL语句</param>		
        public int ExecuteSqlTran(List<String> SQLStringList)
        {
            return DBHelper.ExecuteSqlTran(SQLStringList);
        }
        public bool ExecuteSqlTran(List<string> sqlList, List<IDataParameter[]> cmdParamList)
        {
            return DBHelper.ExecuteSqlTran(sqlList, cmdParamList);
        }
        /// <summary>
        /// 执行查询语句，返回DataSet
        /// </summary>
        /// <param name="SQLString">查询语句</param>
        /// <returns>DataSet</returns>
        public DataSet Query(string SQLString)
        {
            return DBHelper.Query(SQLString);
        }
        /// <summary>
        /// 执行SQL语句，返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public int ExecuteSql(string SQLString, params IDataParameter[] cmdParms)
        {
            return DBHelper.ExecuteSql(SQLString, cmdParms);
        }
        /// <summary>
        /// 执行SQL语句，返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public int ExecuteSql(string SQLString)
        {
            return DBHelper.ExecuteSql(SQLString);
        }
    }
}