存储过程分页,带参,返回值

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create PROCEDURE [dbo].[nb_arrearageListByCar] 
@pageIndex				INT,						--第几页
@pageSize				INT,						--分页大小
@carNumber				NVARCHAR(6),				--车牌号
@Rstatus				INT OUTPUT,					--返回标识号 0 成功 
@Rcode					INT OUTPUT,					--返回错误编码
@Rmsg					VARCHAR(128) OUTPUT			--返回描述状态说明标识
AS
declare @ret			int							--临时参数

DECLARE @SQL			VARCHAR(MAX)
begin
	begin try
			-->step 1 | 空值检测 |
			if(@pageIndex is null or 0 = @pageIndex or @pageSize is null or 0 = @pageSize )
			begin
				set @Rstatus = 1
				set @Rcode = 4000
				set @Rmsg = '参数空'
				select -1 rn,'' code,'' startDate ,-1 reMoney, -1 lastMoney
				return
			end
			--条件筛选
			declare @sql_where nvarchar(max)
			declare @start1 nvarchar(16)
			declare @end1 nvarchar(16)
			set @sql_where = ''
			set @start1 = ''
			set @end1 = ''
			set @start1 = cast((@pageSize * (@pageIndex-1) + 1) as varchar(16))
			set @end1 =  cast(@pageSize* @pageIndex as varchar(16))
			if('' != @carNumber and @carNumber is not null)
			begin
				set @sql_where = @sql_where + N' and b.code = '''+ @carNumber +''' '
			end
			-->step 2 | 分页数据 |
			declare @count1			int
			set @count1 = 0
			declare @t_sql nvarchar(max)
			set @t_sql = N'select @c = count(1)
			from (
			select a.parkOrderID,sum(isnull(c.orderMoney,0)) reMoney 
			from parkOrder a left join parkSpace b on b.spaceID = a.spaceID 
			left join orderPayBank c on c.Orderid = a.parkOrderID
			where a.totalMoney - a.reMoney > 0 and a.spaceStatus = 2 ' + @sql_where + '
			group by a.parkOrderID) a
			left join parkOrder b on b.parkOrderID = a.parkOrderID
			left join parkSpace c on c.spaceID = b.spaceID			
			where 1 = 1'	
			exec  sp_executesql  @t_sql,N'@c int output', @count1 output	
			set @t_sql = ''		
			if(0 = @count1)
			begin
				set @Rstatus = 1
				set @Rcode = 0
				set @Rmsg = '没有欠款记录'
				select -1 rn,'' code,'' startDate ,-1 reMoney, -1 lastMoney
				return
			end
			else
			begin
				set @Rcode = @count1
				set @t_sql = N'select * from (
				select ROW_NUMBER() over (order by c.code) rn,
				b.parkOrderID,c.code,convert(char(20),b.startDate,120) startDate,convert(char(20),b.endDate,120) endDate,LTRIM(RTRIM(b.carNumber)) carNumber,
				DATEDIFF(MINUTE,b.startDate,b.endDate) howlong,a.reMoney,
				b.totalMoney - a.reMoney lastMoney
				from (
				select a.parkOrderID,sum(isnull(c.orderMoney,0)) reMoney 
				from parkOrder a left join parkSpace b on b.spaceID = a.spaceID 
				left join orderPayBank c on c.Orderid = a.parkOrderID
				where  a.totalMoney - a.reMoney > 0 and a.spaceStatus = 2 ' + @sql_where + '
				group by a.parkOrderID) a
				left join parkOrder b on b.parkOrderID = a.parkOrderID
				left join parkSpace c on c.spaceID = b.spaceID			
				where 1 = 1 
				) Ch where Ch.rn between ' + @start1 + ' and ' + @end1
				exec  sp_executesql  @t_sql
				set @Rstatus = 0
				set @Rmsg = '获取成功'
			end
	end try
	begin catch
		set @Rstatus = -1
		set @Rcode = -1
		set @Rmsg = ERROR_MESSAGE()
		insert into parkErr(proName,proTime,proErr)values('[nb_arrearageList]',GETDATE(),ERROR_MESSAGE())
	end catch
end