SQL 工具类

代码

using  System;
using  System.Data;
using  System.Configuration;
using  System.Web;
using  System.Web.Security;
using  System.Web.UI;
using  System.Web.UI.HtmlControls;
using  System.Web.UI.WebControls;
using  System.Web.UI.WebControls.WebParts;
using  System.Data.SqlClient;

///   <summary>
/// sql Server 数据库操作
///   </summary>
public   class  CMS_SqlHelp
{
    private   static   string  sqlconstr  =  Convert.ToString(ConfigurationManager.ConnectionStrings[ " sqlconstr " ]);
     public  CMS_SqlHelp()
    {
         //
         // TODO: 在此处添加构造函数逻辑
         //
       
    }
     ///   <summary>
     ///  自定义分页
     ///   </summary>
     ///   <param name="tblName"> 表名 </param>
     ///   <param name="strGetFields"> 需要返回的列 </param>
     ///   <param name="fldName"> 排序字段名 </param>
     ///   <param name="PageSize"> 每页显示的条数 </param>
     ///   <param name="PageIndex"> 页码 </param>
     ///   <param name="doCount"> 返回记录总数，非0值则返回 </param>
     ///   <param name="OrderType"> 设置排序类型，非0值则降序 </param>
     ///   <param name="strWhere"> 查询条件，不加where </param>
     ///   <returns> datatable </returns>
     public   static  DataTable GetData( string  tblName,  string  strGetFields,  string  fldName,  int  PageSize,  int  PageIndex,  int  doCount,  int  OrderType,  string  strWhere)
    {
         string  strSQL  =   "" , strTmp  =   "" , strOrder  =   "" ;
         if  (doCount  !=   0 )
        {
             if  (strWhere  !=   "" )
            {
                strSQL  =   " select count(*) as Total from  "   +  tblName  +   "  where  "   +  strWhere;
            }
             else
            {
                strSQL  =   " select count(*) as Total from  "   +  tblName;
            }
        }
         else
        {
             if  (OrderType  !=   0 )
            {
                strTmp  =   " <(select min " ;
                strOrder  =   "  order by  "   +  fldName  +   "  desc " ;
            }
             else
            {
                strTmp  =   " >(select max " ;
                strOrder  =   "  order by  "   +  fldName  +   "  asc " ;
            }
             if  (PageIndex  ==   1 )
            {
                 if  (strWhere  !=   "" )
                {
                    strSQL  =   " select top  "   +  PageSize  +   "   "   +  strGetFields  +   "  from  "   +  tblName  +   "  where  "   +  strWhere  +   "   "   +  strOrder;
                }
                 else
                {
                    strSQL  =   " select top  "   +  PageSize  +   "   "   +  strGetFields  +   "  from  "   +  tblName  +   "   "   +  strOrder;
                }
            }
             else
            {
                 if  (strWhere  !=   "" )
                {
                    strSQL  =   " select top  "   +  PageSize  +   "   "   +  strGetFields  +   "   from  "   +  tblName  +   "  where  "   +  fldName  +   "   "   +  strTmp  +   " ( "   +  fldName  +   " ) from (select top  "   +  (PageIndex  -   1 )  *  PageSize  +   "   "   +  fldName  +   "  from  "   +  tblName  +   "  where  "   +  strWhere  +   "   "   +  strOrder  +   " ) as tblTmp) and  "   +  strWhere  +   "   "   +  strOrder;
                }
                 else
                {
                    strSQL  =   " select top  "   +  PageSize  +   "   "   +  strGetFields  +   "   from  "   +  tblName  +   "  where  "   +  fldName  +   "   "   +  strTmp  +   " ( "   +  fldName  +   " ) from (select top  "   +  (PageIndex  -   1 )  *  PageSize  +   "   "   +  fldName  +   "  from  "   +  tblName  +   ""   +  strOrder  +   " ) as tblTmp) "   +  strOrder;
                }
            }
        }
        DataTable dt  =  CMS_SqlHelp.getDataTable(strSQL);
         return  dt;
    }
///   <summary>
///  执行无返回的SQL语句
///   </summary>
///   <param name="sqlStr"> SQL语句 </param>
///   <returns></returns>
     public   static   bool  ExcuteSqlServer( string  sqlStr)
    {
        SqlConnection con  =   new  SqlConnection(sqlconstr);
        SqlCommand sqlcom  =   new  SqlCommand();
        sqlcom.Connection  =  con;
        sqlcom.CommandText  =  sqlStr;
        con.Open();
         try
        {
            sqlcom.ExecuteNonQuery();
       

             return   true ;
        }
         catch  (Exception ex)
        {
           
            errorCollecting.getError(ex);
             return   false ;
        }
         finally  {
            con.Close();
        }
    }
     #region  ExecuteScalar
     ///   <summary>
     ///  返回所查结果第一列第一行
     ///   </summary>
     ///   <param name="sqlStr"></param>
     ///   <returns></returns>
     public   static   object  ExecuteScalar( string  sqlStr)
    {
        SqlConnection con  =   new  SqlConnection(sqlconstr);
        SqlCommand sqlcom  =   new  SqlCommand();
        sqlcom.Connection  =  con;
        sqlcom.CommandText  =  sqlStr;
         object  obj  =   null ;
        con.Open();
         try
        {
         obj =   sqlcom.ExecuteScalar();
          return  obj;

           
        }
         catch  (Exception ex)
        {

            errorCollecting.getError(ex);
             return   false ;
        }
         finally
        {
            con.Close();
        }
    }
     #endregion
     public   static  SqlDataReader ExcuteSqlDataReader( string  sqlStr)
    {
        SqlConnection con  =   new  SqlConnection(sqlconstr);
        SqlCommand sqlcom  =   new  SqlCommand();
      
        sqlcom.Connection  =  con;
        sqlcom.CommandText  =  sqlStr;
        SqlDataReader sdr  =   null ;
             con.Open();
             sdr  =  sqlcom.ExecuteReader(CommandBehavior.CloseConnection);
             return  sdr;
    
            
         
    }
     ///   <summary>
     ///  返回DaTable
     ///   </summary>
     ///   <param name="sqlStr"></param>
     ///   <returns></returns>
     public   static  DataTable getDataTable( string  sqlStr)
    {
        SqlConnection con  =   new  SqlConnection(sqlconstr);
  

      
    

        DataTable dt  =   new  DataTable();
        con.Open();
         try
        {
            SqlDataAdapter da  =   new  SqlDataAdapter(sqlStr, con);
            da.Fill(dt);
        }
         catch  (Exception e)
        {
            errorCollecting.getError(e);
        }
         finally
        {
            con.Close();
        }
         return  dt;
    }


     #region    ExcuteProc
     ///   <summary>
     ///  执行无返回值Proc
     ///   </summary>
     ///   <param name="sqlProc"></param>
     public   static   void  ExecuteProcedureNonQurey( string  sqlProc)
    {
        SqlConnection con  =   new  SqlConnection(sqlconstr);

        SqlCommand com  =   new  SqlCommand();
        com.Connection  =  con;
        com.CommandText  =  sqlProc;
        com.CommandType  =  CommandType.StoredProcedure;

        con.Open();
         try
        {
            com.ExecuteNonQuery();
            com.Dispose();

        }
         catch  (Exception ex)
        {
            errorCollecting.getError(ex);
        }
         finally
        {
            con.Close();

        }
    }

     #endregion
     ///   <summary>
     ///  执行存储过程，不返回任何值
     ///   </summary>
     ///   <param name="storedProcedureName"> 存储过程名 </param>
     ///   <param name="parameters"> 参数 </param>
     /*
       SqlParameter sp = new SqlParameter("@job_desc", SqlDbType.VarChar, 50);
        SqlParameter sp2 = new SqlParameter("@job_id",SqlDbType.SmallInt);

        IDataParameter[] Idp = new IDataParameter[]{sp,sp2 };
        Idp[0].Value="adff";
        Idp[1].Value=6;
        CMS_sqlProc.ExecuteProcedureNonQurey("updateMy", Idp);
   
      */
     public   static   void  ExecuteProcedureNonQurey( string  storedProcedureName, IDataParameter[] parameters)
    {
        SqlConnection connection  =   new  SqlConnection(sqlconstr);
        SqlCommand command  =   new  SqlCommand(storedProcedureName, connection);
        command.CommandType  =  CommandType.StoredProcedure;
         if  (parameters  !=   null )
        {
             foreach  (SqlParameter parameter  in  parameters)
            {
                command.Parameters.Add(parameter);
            }
        }
        connection.Open();
         try
        {
            command.ExecuteNonQuery();
            connection.Close();
        }
         catch  (Exception ex)
        {
            errorCollecting.getError(ex);
        }


    }

     ///   <summary>
     ///  执行存储，并返回SqlDataReader
     ///   </summary>
     ///   <param name="storedProcedureName"> 存储过程名 </param>
     ///   <param name="parameters"> 参数 </param>
     ///   <returns> 包含查询结果的SqlDataReader </returns>
     public   static  SqlDataReader ExecuteProcedureReader( string  storedProcedureName, IDataParameter[] parameters)
    {
        SqlConnection connection  =   new  SqlConnection(sqlconstr);
        SqlCommand command  =   new  SqlCommand(storedProcedureName, connection);
        command.CommandType  =  CommandType.StoredProcedure;
         if  (parameters  !=   null )
        {
             foreach  (SqlParameter parameter  in  parameters)
            {
                command.Parameters.Add(parameter);
            }
        }
        connection.Open();
        SqlDataReader sqlReader  =  command.ExecuteReader(CommandBehavior.CloseConnection);
         return  sqlReader;
    }

     ///   <summary>
     ///  执行存储，并返回DataTable
     ///   </summary>
     ///   <param name="storedProcedureName"> 存储过程名 </param>
     ///   <param name="parameters"> 参数 </param>
     ///   <returns> 包含查询结果的SqlDataReader </returns>
     public   static  DataTable ExecuteProcedureDataTable( string  storedProcedureName, IDataParameter[] parameters)
    {
        SqlConnection connection  =   new  SqlConnection(sqlconstr);
        SqlCommand command  =   new  SqlCommand(storedProcedureName, connection);
        command.CommandType  =  CommandType.StoredProcedure;
         if  (parameters  !=   null )
        {
             foreach  (SqlParameter parameter  in  parameters)
            {
                command.Parameters.Add(parameter);
            }
        }
        connection.Open();


          DataTable dt  =   new  DataTable();
         try
        {
            SqlDataAdapter da  =   new  SqlDataAdapter(command);
            da.Fill(dt);
        }
         catch  (Exception e)
        {
             throw  e;
        }
         finally
        {
            connection.Close();
        }
         return  dt;


    }

//可以尽量避免sqlconnection.open()操作
     public   static  DataSet ExecuteProcedureDataset( string  storedProcedureName, IDataParameter[] parameters)
    {
        SqlConnection connection  =   new  SqlConnection(sqlconstr);
        SqlCommand command  =   new  SqlCommand(storedProcedureName, connection);
        command.CommandType  =  CommandType.StoredProcedure;
         if  (parameters  !=   null )
        {
             foreach  (SqlParameter parameter  in  parameters)
            {
                command.Parameters.Add(parameter);
            }
        }
        connection.Open();

        DataSet ds  =   new  DataSet();
        DataTable dt  =   new  DataTable();
         try
        {
            SqlDataAdapter da  =   new  SqlDataAdapter(command);
       
            da.Fill(ds);
        }
         catch  (Exception e)
        {
             throw  e;
        }
         finally
        {
            connection.Close();
        }
         return  ds;


    }