2 つのクエリを結合した後に個別の値を取得しようとしている SQL クエリがあります。両方のクエリですでに Distinct を使用しています。
私はテーブルRegIDに主キーとして持っておりRegistration、登録テーブルの各エントリには対応するエントリがあります。RoomTypeつまり、RoomTypeテーブルにはRegID外部キーがあります。
RoomType問題は、特定のテーブルに複数のエントリがある場合、RegIDRegid が重複することです。
私のクエリ印刷は次のようなものです：
SELECT DISTINCT
dbo.tbRegistration.RegID,
dbo.tbRegistration.PropertyName, dbo.tbRegistration.IsActive,
dbo.tbRegistration.Stars, dbo.tbRegistration.City,
dbo.tbRegistration.Address,
dbo.tbHotelImages.MainImage, dbo.tbHotelImages.Img1,
dbo.tbHotelImages.Img2, dbo.tbHotelImages.Img3,
dbo.tbHotelImages.Img4, dbo.tbHotelImages.Img5,
dbo.tbHotelImages.Img6, dbo.tbHotelImages.Img7,
dbo.tbHotelImages.Img8, dbo.tbHotelImages.Img9,
dbo.tbRegistration.PropertyID,
dbo.tbHotelFeatures.*,
dbo.tbBillingPlan.BaseRate, dbo.tbRoomType.Name as RoomTypeName
FROM
dbo.tbRoomType
LEFT OUTER JOIN
dbo.tbRegistration ON dbo.tbRoomType.RegID = dbo.tbRegistration.RegID
LEFT OUTER JOIN
dbo.tbBillingPlan ON dbo.tbRoomType.RTID = dbo.tbBillingPlan.RTID
LEFT OUTER JOIN
dbo.tbHotelFeatures ON dbo.tbRegistration.RegID = dbo.tbHotelFeatures.RegID
LEFT OUTER JOIN
dbo.tbHotelImages ON dbo.tbRegistration.RegID = dbo.tbHotelImages.RegID
WHERE
tbRegistration.PMS = 0
AND tbRegistration.Stars IN (0) OR 1=1
AND (tbRegistration.City LIKE '%' + @SearchText + '%')
AND (tbRoomType.Adults >= @Adults OR tbRoomType.Children >= @Children)
AND (dbo.GetFreeRoomType(dbo.tbRoomType.RTID, @CheckIn, @CheckOut) > 0)
AND dbo.tbRegistration.IsActive = 1
UNION
SELECT DISTINCT
dbo.tbRegistration.RegID , dbo.tbRegistration.PropertyName, dbo.tbRegistration.IsActive, dbo.tbRegistration.Stars, dbo.tbRegistration.City, dbo.tbRegistration.Address,
dbo.tbHotelImages.MainImage, dbo.tbHotelImages.Img1, dbo.tbHotelImages.Img2, dbo.tbHotelImages.Img3, dbo.tbHotelImages.Img4, dbo.tbHotelImages.Img5,
dbo.tbHotelImages.Img6, dbo.tbHotelImages.Img7, dbo.tbHotelImages.Img8, dbo.tbHotelImages.Img9, dbo.tbRegistration.PropertyID ,
dbo.tbHotelFeatures.*, dbo.tbBillingPlan.BaseRate,dbo.tbRoomType.Name as RoomTypeName
FROM dbo.tbRoomType left OUTER JOIN
dbo.tbRegistration ON dbo.tbRoomType.RegID = dbo.tbRegistration.RegID left OUTER JOIN
dbo.tbBillingPlan ON dbo.tbRoomType.RTID = dbo.tbBillingPlan.RTID LEFT OUTER JOIN
dbo.tbHotelFeatures ON dbo.tbRegistration.RegID = dbo.tbHotelFeatures.RegID LEFT OUTER JOIN
dbo.tbHotelImages ON dbo.tbRegistration.RegID = dbo.tbHotelImages.RegID
Where tbRegistration.PMS=1 and tbRegistration.Stars IN ( 0 ) or 1=1 and (tbRegistration.City like '%' + @SearchText + '%' )
and (tbRoomType.Adults>=@Adults or tbRoomType.Children>=@Children )
and(dbTestSparrowPMS . dbo.GetFreeRoomType(dbo.tbRoomType.ID, @CheckIn, @CheckOut) >0) and dbo.tbRegistration.IsActive=1
order by tbRegistration.RegID
私の手順は次のようなものです：
USE [dbTestSearchMyHotel]
GO
/****** Object: StoredProcedure [dbo].[prRegistrationSearchFreeHotels] Script Date: 04/01/2013 12:06:26 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
ALTER PROCEDURE [dbo].[prRegistrationSearchFreeHotels] -- 's','4/27/2013','4/28/2013',1,1,0,0,0,0,0,0,0
-- Add the parameters for the stored procedure here select * from tbRegistration where Stars in(1,4)
@SearchText varchar(4000),
@CheckIn date,
@CheckOut date,
@Adults int,
@Children int,
@Min float,
@Max float,
@OneStar bit,
@TwoStar bit,
@ThreeStar bit,
@FourStar bit,
@FiveStar bit
AS
Declare @SQLQuery AS NVarchar(4000)
Declare @ParamDefinition AS NVarchar(4000)
declare @n as bit
set @n=0
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
Set @SQLQuery='SELECT DISTINCT
dbo.tbRegistration.RegID , dbo.tbRegistration.PropertyName,dbo.tbRegistration.IsActive, dbo.tbRegistration.Stars, dbo.tbRegistration.City, dbo.tbRegistration.Address,
dbo.tbHotelImages.MainImage, dbo.tbHotelImages.Img1, dbo.tbHotelImages.Img2, dbo.tbHotelImages.Img3, dbo.tbHotelImages.Img4, dbo.tbHotelImages.Img5,
dbo.tbHotelImages.Img6, dbo.tbHotelImages.Img7, dbo.tbHotelImages.Img8, dbo.tbHotelImages.Img9, dbo.tbRegistration.PropertyID ,
dbo.tbHotelFeatures.*, dbo.tbBillingPlan.BaseRate,dbo.tbRoomType.Name as RoomTypeName
FROM dbo.tbRoomType left OUTER JOIN
dbo.tbRegistration ON dbo.tbRoomType.RegID = dbo.tbRegistration.RegID left OUTER JOIN
dbo.tbBillingPlan ON dbo.tbRoomType.RTID = dbo.tbBillingPlan.RTID LEFT OUTER JOIN
dbo.tbHotelFeatures ON dbo.tbRegistration.RegID = dbo.tbHotelFeatures.RegID LEFT OUTER JOIN
dbo.tbHotelImages ON dbo.tbRegistration.RegID = dbo.tbHotelImages.RegID
Where tbRegistration.PMS=0 and tbRegistration.Stars IN ( '
if @OneStar =1
begin
set @n =1
set @SQLQuery =@SQLQuery +' 1 '
end
if @TwoStar =1
begin
if @n =1
begin
set @SQLQuery =@SQLQuery +' , 2 '
end
else
begin
set @n=1
set @SQLQuery =@SQLQuery +' 2 '
end
end
if @ThreeStar =1
begin
if @n =1
begin
set @SQLQuery =@SQLQuery +' , 3 '
end
else
begin
set @n=1
set @SQLQuery =@SQLQuery +' 3 '
end
end
if @FourStar =1
begin
if @n =1
begin
set @SQLQuery =@SQLQuery +' , 4 '
end
else
begin
set @n=1
set @SQLQuery =@SQLQuery +' 4 '
end
end
if @FiveStar =1
begin
if @n =1
begin
set @SQLQuery =@SQLQuery +' , 5 '
end
else
begin
set @n=1
set @SQLQuery =@SQLQuery +' 5 '
end
end
if @n=0
begin
set @SQLQuery =@SQLQuery +' 0 ) or 1=1 and '
end
else
begin
set @SQLQuery =@SQLQuery +' ) and '
end
set @SQLQuery =@SQLQuery +' (tbRegistration.City like ''%'' + @SearchText + ''%'' )
and (tbRoomType.Adults>=@Adults or tbRoomType.Children>=@Children )
and( dbo.GetFreeRoomType(dbo.tbRoomType.RTID, @CheckIn, @CheckOut) >0) and dbo.tbRegistration.IsActive=1 '
if @Min > 0 and @Max > 0
set @SQLQuery =@SQLQuery +' and (tbBillingPlan.BaseRate>=@Min) and (tbBillingPlan.BaseRate<=@Max) '
set @SQLQuery =@SQLQuery +' union '
set @n=0
Set @SQLQuery=@SQLQuery+'SELECT DISTINCT
dbo.tbRegistration.RegID , dbo.tbRegistration.PropertyName, dbo.tbRegistration.IsActive, dbo.tbRegistration.Stars, dbo.tbRegistration.City, dbo.tbRegistration.Address,
dbo.tbHotelImages.MainImage, dbo.tbHotelImages.Img1, dbo.tbHotelImages.Img2, dbo.tbHotelImages.Img3, dbo.tbHotelImages.Img4, dbo.tbHotelImages.Img5,
dbo.tbHotelImages.Img6, dbo.tbHotelImages.Img7, dbo.tbHotelImages.Img8, dbo.tbHotelImages.Img9, dbo.tbRegistration.PropertyID ,
dbo.tbHotelFeatures.*, dbo.tbBillingPlan.BaseRate,dbo.tbRoomType.Name as RoomTypeName
FROM dbo.tbRoomType left OUTER JOIN
dbo.tbRegistration ON dbo.tbRoomType.RegID = dbo.tbRegistration.RegID left OUTER JOIN
dbo.tbBillingPlan ON dbo.tbRoomType.RTID = dbo.tbBillingPlan.RTID LEFT OUTER JOIN
dbo.tbHotelFeatures ON dbo.tbRegistration.RegID = dbo.tbHotelFeatures.RegID LEFT OUTER JOIN
dbo.tbHotelImages ON dbo.tbRegistration.RegID = dbo.tbHotelImages.RegID
Where tbRegistration.PMS=1 and tbRegistration.Stars IN ( '
if @OneStar =1
begin
set @n =1
set @SQLQuery =@SQLQuery +' 1 '
end
if @TwoStar =1
begin
if @n =1
begin
set @SQLQuery =@SQLQuery +', 2 '
end
else
begin
set @SQLQuery =@SQLQuery +' 2 '
set @n=1
end
end
if @ThreeStar =1
begin
if @n =1
begin
set @SQLQuery =@SQLQuery +' , 3 '
end
else
begin
set @n=1
set @SQLQuery =@SQLQuery +' 3'
end
end
if @FourStar =1
begin
if @n =1
begin
set @SQLQuery =@SQLQuery +' , 4 '
end
else
begin
Set @n=1
set @SQLQuery =@SQLQuery +' 4 '
end
end
if @FiveStar =1
begin
if @n =1
begin
set @SQLQuery =@SQLQuery +', 5 '
end
else
begin
Set @n=1
set @SQLQuery =@SQLQuery +' 5 '
end
end
if @n=0
begin
set @SQLQuery =@SQLQuery +' 0 ) or 1=1 and '
end
else
begin
set @SQLQuery =@SQLQuery +' ) and '
end
set @SQLQuery =@SQLQuery +' (tbRegistration.City like ''%'' + @SearchText + ''%'' )
and (tbRoomType.Adults>=@Adults or tbRoomType.Children>=@Children )
and(dbTestSparrowPMS . dbo.GetFreeRoomType(dbo.tbRoomType.ID, @CheckIn, @CheckOut) >0) and dbo.tbRegistration.IsActive=1
'
if @Min > 0 and @Max > 0
set @SQLQuery =@SQLQuery +' and (tbBillingPlan.BaseRate>=@Min) and (tbBillingPlan.BaseRate<=@Max) '
set @SQLQuery=@SQLQuery + ' order by tbRegistration.RegID'
--
Set @ParamDefinition = '
@SearchText varchar(4000),
@CheckIn date,
@CheckOut date,
@Adults int,
@Children int,
@Min float,
@Max float,
@OneStar bit,
@TwoStar bit,
@ThreeStar bit,
@FourStar bit,
@FiveStar bit'
--print @SQLQuery
/* Execute the Transact-SQL String with all parameter value's
Using sp_executesql Command */
Execute sp_Executesql @SQLQuery,
@ParamDefinition,
@SearchText ,
@CheckIn ,
@CheckOut ,
@Adults ,
@Children ,
@Min,
@Max,
@OneStar ,
@TwoStar ,
@ThreeStar ,
@FourStar ,
@FiveStar
return
end