私は単純な、1レベル親子関係テーブルを持ち、次の列があります。
ID_Asset| Parent_ID_Asset | ProductTitle
親、子の順にグループ化された出力と、親と子の名前でソートされた出力が必要です。フィドルでの私の試み。親が最初でなければなりません。
詳細はこちらをご覧ください: https://rextester.com/PPCHG20007
CREATE TABLE [dbo].[Test](
[ID_Asset] [int] NOT NULL,
[Parent_ID_Asset] [int] NULL,
[ProductTitle] [nvarchar](150) NOT NULL
) ON [PRIMARY]
GO
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (2, NULL, N'Live Maps Unity')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (3, NULL, N'mShare')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (4, NULL, N'Nessus Professional')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (5, NULL, N'Enterprise Server')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (6, NULL, N'PhantomPDF')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (7, NULL, N'Sharegate')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (8, NULL, N'ADONIS Server')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (9, NULL, N'Automated Intelligence AI Compliance Extender & AI Syncpoint')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (10, NULL, N'Agility BridgeChecker')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (11, NULL, N'Office Timeline')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (12, NULL, N'ThinkBuzan iMindMap 8 Ultimate')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (13, NULL, N'Total Management Suite')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (14, NULL, N'Webex Business Messaging and Advanced Meetings')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (16, 8, N'ADONIS Designer')
INSERT [dbo].[Test] ([ID_Asset], [Parent_ID_Asset], [ProductTitle]) VALUES (20, 8, N'ADONIS Portal Module “Control & Release” Package XS')
GO
SELECT
*
FROM
Test
ORDER BY (
CASE WHEN Parent_ID_Asset is null then ID_Asset else Parent_ID_Asset end), ProductTitle
GO
必要な出力は(関連部分)です。
ID_Asset Parent_ID_Asset ProductTitle
-------- --------------- ---------------------------------------------------
8 NULL ADONIS Server
16 8 ADONIS Designer
20 8 ADONIS Portal Module “Control & Release” Package XS
上に親、次にアルファベット順に子供が続きます。親要素(Parent_ID_Asset
にnullがある)もアルファベット順に並べる必要があります。
ORDER BY句でCASE WHENを使用して取得できます。
注:最初にNULL Parent_IDを取得するためだけにCOALESCE(Parent_ID_Asset, '')
を追加しました。これをCASE WHEN Parent_ID_Asset IS NULL THEN 0 ELSE 1 END
で置き換えることができます。
SELECT
ID_Asset,
Parent_ID_Asset,
ProductTitle
FROM
Test
ORDER BY
CASE WHEN Parent_ID_Asset IS NULL THEN ID_Asset ELSE Parent_ID_Asset END,
COALESCE(Parent_ID_Asset, ''),
ProductTitle;
GO
| ID_Asset | Parent_ID_Asset | ProductTitle |
|----------|-----------------|--------------------------------------------------------------|
| 2 | NULL | Live Maps Unity |
| 3 | NULL | mShare |
| 4 | NULL | Nessus Professional |
| 5 | NULL | Enterprise Server |
| 6 | NULL | PhantomPDF |
| 7 | NULL | Sharegate |
| 8 | NULL | ADONIS Server |
| 16 | 8 | ADONIS Designer |
| 20 | 8 | ADONIS Portal Module “Control & Release” Package XS |
| 9 | NULL | Automated Intelligence AI Compliance Extender & AI Syncpoint |
| 10 | NULL | Agility BridgeChecker |
| 11 | NULL | Office Timeline |
| 12 | NULL | ThinkBuzan iMindMap 8 Ultimate |
| 13 | NULL | Total Management Suite |
| 14 | NULL | Webex Business Messaging and Advanced Meetings |
レステスター ここ
[〜#〜]更新[〜#〜]
ProductTitleで何らかの方法で結果を並べ替える必要があるようです。次のクエリを使用できます(プレゼンテーション層で実行できる追加のジョブを追加していることに注意してください)。
SELECT
ID_Asset,
Parent_ID_Asset,
ProductTitle
FROM
Test
ORDER BY
MAX(CASE WHEN Parent_ID_Asset IS NULL THEN ProductTitle ELSE '' END)
OVER (PARTITION BY COALESCE(Parent_ID_Asset, ID_Asset)),
COALESCE(Parent_ID_Asset, ID_Asset),
Parent_ID_Asset,
ProductTitle;
ID_Asset | Parent_ID_Asset | ProductTitle
-------: | --------------: | :-----------------------------------------------------------
8 | null | ADONIS Server
16 | 8 | ADONIS Designer
20 | 8 | ADONIS Portal Module “Control & Release” Package XS
10 | null | Agility BridgeChecker
9 | null | Automated Intelligence AI Compliance Extender & AI Syncpoint
5 | null | Enterprise Server
2 | null | Live Maps Unity
3 | null | mShare
4 | null | Nessus Professional
11 | null | Office Timeline
6 | null | PhantomPDF
7 | null | Sharegate
12 | null | ThinkBuzan iMindMap 8 Ultimate
13 | null | Total Management Suite
14 | null | Webex Business Messaging and Advanced Meetings
db <> fiddle ここ