SQL-Server多表关联查询并分页

SQL-Server多表关联查询并分页

一、多表关联查询

1，left join

RelaTimeLog表 和 ValidFlight表关联查询

select t.FlightId,t.Calsign,t.DepAddrName,t.ArrAddrName,t.Etd  FROM [CDM].[dbo].[ValidFlight] t  left join [CDM].[dbo].[RelaTimeLog] f on t.FlightId = f.FlightId where f.[Type] = 5 order by t.FlightId desc 

2，与group by连用

select t.FlightId,t.Calsign,t.DepAddrName,t.ArrAddrName,t.Etd FROM [CDM].[dbo].[ValidFlight] t where FlightId in (select FlightId from [CDM].[dbo].[RelaTimeLog] where [Type] =5 group by FlightId) order by t.FlightId desc

二、分页

1，查询0到10条

select  t.FlightId,t.Calsign,t.DepAddrName,t.ArrAddrName,t.Etd from (select *,ROW_NUMBER() over (order by FlightId Desc) as rowNumber FROM [CDM].[dbo].[ValidFlight] 
 where FlightId in (select FlightId from [CDM].[dbo].[RelaTimeLog] where [Type] =5 group by FlightId))t  where rowNumber between 0 and 10 order by t.Etd desc

2，BETWEEN *  AND *  ，  Row_Number() OVER(ORDER BY *) AS rowNum 

select t.FlightId,t.Calsign,t.DepAddrName,t.ArrAddrName,t.Etd,ROW_NUMBER() over (order by FlightId Desc) as rowNumber into #a FROM [CDM].[dbo].[ValidFlight] t 
       where FlightId in (select FlightId from [CDM].[dbo].[RelaTimeLog] where [Type] =5 group by FlightId) order by t.FlightId desc  
select * from #a  where rowNumber between 0 and 10
select COUNT(*) as totalCount from #a
drop Table #a

3，以 BETWEEN *  AND *  ，  Row_Number() OVER(ORDER BY *) AS rowNum为例的分页存储过程

USE [CDM]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROC [dbo].[p_GetModifyTOBTFlight]
@PageIndex int,
@PageSize int,
@calsign nvarchar(50),
@Recount int output
AS
BEGIN
     
 if @calsign<>\'\'
    BEGIN
     select CONVERT(int,t.FlightId) as FlightId,t.Calsign,t.DepAddrName,t.ArrAddrName,t.Etd, ROW_NUMBER() over (order by Etd Desc) as rowNumber into #a FROM [CDM].[dbo].[ValidFlight] t 
                 where FlightId in (select FlightId from [CDM].[dbo].[RelaTimeLog] where [Type] =5 and Calsign like \'%\'+@calsign+\'%\' group by FlightId)  
     select * from #a  where rowNumber between @PageSize*((@PageIndex)-1) and @PageSize*@PageIndex 
     set @Recount = (select COUNT(*) from #a)
     drop Table #a
    END
 else
   BEGINselect CONVERT(int,t.FlightId) as FlightId,t.Calsign,t.DepAddrName,t.ArrAddrName,t.Etd,t.Atd,t.Ata, t.Eta,ROW_NUMBER() over (order by etd Desc) as rowNumber into #b FROM [CDM].[dbo].[ValidFlight] t 
           where FlightId in (select FlightId from [CDM].[dbo].[RelaTimeLog] where [Type] =5 group by FlightId)
if@pageIndex >1
  begin 

    select * from #b  where rowNumber between (@PageSize*((@PageIndex)-1)+1） and @PageSize*@PageIndex 

  end
else
  begin

    select * from #b  where rowNumber between @PageSize*((@PageIndex)-1) and @PageSize*@PageIndex 

  end    set @Recount = (select COUNT(*) from #b)
    print @Recount
    drop Table #b 
  END
END

4，拼接SQL语句

USE [CDM]
GO
/****** Object:  StoredProcedure [dbo].[p_GetHistoryFlight]    Script Date: 2018/12/29 14:32:42 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROC [dbo].[p_GetHistoryFlight]
@PageIndex int,
@PageSize int,
@GsName nvarchar(20),
@StartTime datetime,
@EndTime datetime,
@DepAddr nvarchar(25),
@ArrAddr nvarchar(25),
@TimeDiff int,
@Recount int output
AS
BEGIN
declare @sql nvarchar(1000)
declare @countSql nvarchar(1000)
declare @where nvarchar(1000) =\' WHERE  1=1 \'
declare @cols nvarchar(1000) =\' Id,CONVERT(INT,FlightId) AS FlightId,Calsign,FlyTypeName,GsName,AcfTypeName,Stand,Etd,CTOT,Atd,Eta,Ata,TOBT,ApplicateTime,DepAddrName,ArrAddrName,1 AS TimeDiff \'

declare @sort nvarchar(50) =\' ORDER BY Etd desc\'
if @StartTime IS NOT NULL
    BEGIN
        set @where=@where+\' AND Etd>=\'\'\'+CONVERT(nvarchar,@StartTime)+\'\'\'\'
    END
if @EndTime IS NOT NULL
    BEGIN
        set @where=@where+\' AND Etd<=\'\'\'+CONVERT(nvarchar,@EndTime)+\'\'\'\'
    END
if @DepAddr<>\'\'
    BEGIN
    SET @where=@where + \' AND DepAddrName LIKE \'\'%\'+@DepAddr+\'%\'\'\'
    END
if @DepAddr<>\'\'
BEGIN
    SET @where=@where + \' AND ArrAddrName LIKE \'\'%\'+@ArrAddr+\'%\'\'\'
END
print(@where)
if @GsName<>\'\'
    BEGIN
        set @where=@where+\' AND GsName LIKE \'\'%\'+@GsName+\'%\'\'\'
    END
set @sql=N\'SELECT TOP \'+STR(@PageSize) +\' * FROM ( SELECT ROW_NUMBER() OVER(ORDER BY Id desc) as rowid, \' + @cols +\' FROM [CDM].[dbo].[ValidFlightHistory] \' +@where +\') AS A  WHERE rowid>\'+STR(@PageSize*((@PageIndex)-1))
print @sql
exec(@sql)


set @countSql=N\'SELECT @total=count(*) FROM [CDM].[dbo].[ValidFlightHistory] \'+@where
print @countSql

exec sp_executesql @countSql,N\'@total int out\',@total=@Recount out
END