SQL视图优化改写为存储过程遇到 双引号 单引号问题

核心在于拼接SQL字符串中遇到中文双引号问题：

  可以使用系统函数 替换掉set @pageStr =   replace(@queryStr,'"','''')  不过更推荐 使用两个单引号转译 

 USE [TEMP]
 GO

 /****** Object:  StoredProcedure [dbo].[P_GetAlterAsset]
 SET ANSI_NULLS ON
 GO

 SET QUOTED_IDENTIFIER ON
 GO

 ALTER proc [dbo].[P_GetAlterAssetPage]
 (
  @filterCondition varchar(max)='',
  @pageIndex int,
  @pageSize int,
  @totalCount int output
 )
 AS Begin
  DECLARE @queryStr NVARCHAR(MAX)=''
  DECLARE @pageStr NVARCHAR(MAX)=''
  DECLARE @endStr NVARCHAR(MAX)=''
  DECLARE @countStr NVARCHAR(MAX)=''
  DECLARE @and NVARCHAR(MAX)=''

  set @and = @filterCondition
  set @queryStr = '
                  WITH    T1
                           AS ( SELECT   ALDE_MSNo
                                FROM     T_Alter_Apply
                                         LEFT JOIN T_Alter_Detail ON ALDE_ApplyID = AP_ID
                                WHERE    AP_StateID = 1
                                UNION
                                SELECT   [GBDE_MSNo]
                                FROM     [dbo].[T_Giveback_Apply]
                                         LEFT JOIN [dbo].[T_GiveBack_Detail] ON [AP_ID] = [GBDE_APID]
                                WHERE    AP_State = 1
                              ),
                         T4
                           AS ( SELECT   al.AL_State ,
                                         ali.ALI_ASNo ,
                                         al.[AL_ID]
                                FROM     [dbo].[T_Alter] al
                                         inner JOIN [dbo].[T_AlterItem] ali ON al.[AL_AlterNo] = ali.[ALI_AlterNo]
                                            AND al.AL_State <> 100  

                              ),  

                         T2
                           AS ( SELECT DISTINCT
                                         b.AS_TypeName ,
                                         b.AS_MSNo ,
                                         b.AS_BrandName ,
                                         b.AS_Model ,
                                         c.AD_CPU ,
                                         c.AD_HardDisk ,
                                         c.AD_Memory ,
                                         c.AD_VideoCard AS AD_SoundCard ,
                                         b.AS_Price ,
                                         b.AS_State ,
                                         b.AS_CostCenterName ,
                                         b.AS_CostCenterNo ,
                                         b.AS_Category,
                                         b.AS_PlaceNo,
                                         b.AS_PlaceName,
                                         b.AS_ProjectNo,
                                         b.AS_ProjectName,
                                         b.AS_VestInNo,
                                         b.AS_VesInName,
                                         b.AS_IsSpecialPro,
                                         b.AS_ProfitCenterNo ,
                                         b.AS_ProfitCenterName,
                                         b.AS_ComNo,
                                         b.AS_ComName,
                                         CASE WHEN T1.ALDE_MSNo IS NOT NULL
                                              THEN "变更中"
                                              WHEN ISNULL(T4.AL_State, 2) = 2
                                              THEN "可变更"
                                              ELSE "变更中"
                                         END AS AL_StateName
                               FROM     dbo.T_Asset b with(nolock)
                                         LEFT JOIN dbo.T_AssetDetail c with(nolock)  ON b.AS_ADID = c.AD_ID
                                         LEFT JOIN T4 with(nolock)  ON b.AS_MSNo = T4.ALI_ASNo
                                         LEFT JOIN T1 with(nolock)  ON b.AS_MSNo = T1.ALDE_MSNo
                                         LEFT JOIN dbo.V_PSA_PrjInfo p  with(nolock)  ON b.AS_ProjectNo=p.PrjCode
                                WHERE    b.AS_State = 1
                                         and (p.PrjTypeID NOT IN ( 710, 711 ) or p.PrjTypeID is null)
                                         and (p.PrjStatus IN ( 6, 10 ) or p.PrjStatus is null )
                                         '+@and + ')'      

   set @pageStr =   replace(@queryStr,'"','''')
   set @endStr = @pageStr+' SELECT * FROM (select  row_number() over(order by AS_Price ) as rowIndex,* FROM T2 ) tt where tt.rowIndex between '+ CAST(((@pageIndex-1)*@pageSize + 1) as nvarchar(20)) +' and '+ CAST((@pageIndex*@pageSize) as nvarchar(20))

   DECLARE @strCountSql NVARCHAR(max)
   SET @strCountSql = @queryStr +' Select @RecordCount = count(*) FROM T2 '
   EXEC sp_executesql @strCountSql, N'@RecordCount int OUTPUT', @totalCount OUTPUT

   execute  (@endStr)   

 END

 GO

此文仅作用于学习记录，之前写的为一个视图，在功能中又在外面嵌套各种条件进行查询，相当于查询所有数据后再进行分页，速度很慢，特别耗费服务器cpu资源；

把一个视图修改为两个存储过程，一个分页，一个查询所有；调用代码如下：

  #region 优化为存储过程 20190104
                     var parameters = new List<System.Data.SqlClient.SqlParameter>();
                     parameters.Add(new System.Data.SqlClient.SqlParameter("@filterCondition", sql));
                     parameters.Add(new System.Data.SqlClient.SqlParameter("@pageIndex", pageIndex));
                     parameters.Add(new System.Data.SqlClient.SqlParameter("@pageSize", pageSize));
                     SqlParameter outParameter = new SqlParameter("@totalCount", SqlDbType.Int, );
                     outParameter.Direction = ParameterDirection.Output;
                     parameters.Add(outParameter);
                     var lstAssets = db.Database.SqlQuery<AssetAlterInfo>("exec P_EAM_GetAlterAssetPage @filterCondition, @pageIndex, @pageSize, @totalCount out", parameters.ToArray()).ToList();
                     count = Convert.ToInt32(outParameter.Value == DBNull.Value ?  : outParameter.Value);

存储过程分页