| ID | Value | CreatedAt | GroupNumber | Reason for new group |
|---|---|---|---|---|
| 036a2e7d-b809-48a4-9097-05460b06f1b4 | 1 | 2019-09-13T17:08:00 | 1 | First in ID group |
| 036a2e7d-b809-48a4-9097-05460b06f1b4 | 2 | 2019-09-13T17:09:00 | 1 | None |
| 036a2e7d-b809-48a4-9097-05460b06f1b4 | 3 | 2019-09-13T17:10:00 | 1 | None |
| 036a2e7d-b809-48a4-9097-05460b06f1b4 | 1 | 2019-09-13T17:11:00 | 2 | Previous entry by CreatedAt in this ID group reached Value 3 |
| 6c5fbe89-ce79-4394-8c11-3efb7d924efb | 1 | 2019-09-13T17:12:00 | 3 | First in ID group |
| 6c5fbe89-ce79-4394-8c11-3efb7d924efb | 2 | 2019-09-13T17:13:00 | 3 | None |
| 02d97338-ea82-4a1e-a1be-638a120c08e5 | 1 | 2019-09-13T17:14:00 | 4 | First in ID group |
Last active
September 13, 2019 17:51
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| ID | Value | CreatedAt | ID | GroupNumber |
|---|---|---|---|---|
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 | 2019-09-13 17:08:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 | 2019-09-13 17:08:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 2 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 | 2019-09-13 17:08:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 | 2019-09-13 17:08:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 2 | 2019-09-13 17:09:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 2 | 2019-09-13 17:09:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 2 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 2 | 2019-09-13 17:09:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 2 | 2019-09-13 17:09:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 3 | 2019-09-13 17:10:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 3 | 2019-09-13 17:10:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 2 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 3 | 2019-09-13 17:10:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 3 | 2019-09-13 17:10:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 | 2019-09-13 17:11:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 | 2019-09-13 17:11:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 2 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 | 2019-09-13 17:11:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 | 2019-09-13 17:11:00.0000000 | 036A2E7D-B809-48A4-9097-05460B06F1B4 | 1 |
| 6C5FBE89-CE79-4394-8C11-3EFB7D924EFB | 1 | 2019-09-13 17:12:00.0000000 | 6C5FBE89-CE79-4394-8C11-3EFB7D924EFB | 3 |
| 6C5FBE89-CE79-4394-8C11-3EFB7D924EFB | 1 | 2019-09-13 17:12:00.0000000 | 6C5FBE89-CE79-4394-8C11-3EFB7D924EFB | 2 |
| 6C5FBE89-CE79-4394-8C11-3EFB7D924EFB | 2 | 2019-09-13 17:13:00.0000000 | 6C5FBE89-CE79-4394-8C11-3EFB7D924EFB | 3 |
| 6C5FBE89-CE79-4394-8C11-3EFB7D924EFB | 2 | 2019-09-13 17:13:00.0000000 | 6C5FBE89-CE79-4394-8C11-3EFB7D924EFB | 2 |
| 02D97338-EA82-4A1E-A1BE-638A120C08E5 | 1 | 2019-09-13 17:14:00.0000000 | 02D97338-EA82-4A1E-A1BE-638A120C08E5 | 4 |
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| DROP TABLE IF EXISTS List | |
| CREATE TABLE [dbo].[List] | |
| ( | |
| [ID] [uniqueidentifier] NOT NULL, | |
| [Value] [int] NOT NULL, | |
| [CreatedAt] [datetime2](7) NOT NULL | |
| ) | |
| GO | |
| INSERT [dbo].[List] ([ID], [Value], [CreatedAt]) VALUES (N'036a2e7d-b809-48a4-9097-05460b06f1b4', 1, CAST(N'2019-09-13T17:08:00' AS DateTime2)) | |
| INSERT [dbo].[List] ([ID], [Value], [CreatedAt]) VALUES (N'036a2e7d-b809-48a4-9097-05460b06f1b4', 2, CAST(N'2019-09-13T17:09:00' AS DateTime2)) | |
| INSERT [dbo].[List] ([ID], [Value], [CreatedAt]) VALUES (N'036a2e7d-b809-48a4-9097-05460b06f1b4', 3, CAST(N'2019-09-13T17:10:00' AS DateTime2)) | |
| INSERT [dbo].[List] ([ID], [Value], [CreatedAt]) VALUES (N'036a2e7d-b809-48a4-9097-05460b06f1b4', 1, CAST(N'2019-09-13T17:11:00' AS DateTime2)) | |
| INSERT [dbo].[List] ([ID], [Value], [CreatedAt]) VALUES (N'6c5fbe89-ce79-4394-8c11-3efb7d924efb', 1, CAST(N'2019-09-13T17:12:00' AS DateTime2)) | |
| INSERT [dbo].[List] ([ID], [Value], [CreatedAt]) VALUES (N'6c5fbe89-ce79-4394-8c11-3efb7d924efb', 2, CAST(N'2019-09-13T17:13:00' AS DateTime2)) | |
| INSERT [dbo].[List] ([ID], [Value], [CreatedAt]) VALUES (N'02d97338-ea82-4a1e-a1be-638a120c08e5', 1, CAST(N'2019-09-13T17:14:00' AS DateTime2)) | |
| GO | |
| -- Query | |
| WITH [Group] (ID, GroupNumber) | |
| AS | |
| ( | |
| SELECT [List].[ID], ROW_NUMBER() OVER (PARTITION BY [List].[Value] ORDER BY [List].[CreatedAt]) AS GroupNumber | |
| FROM [List] | |
| ) | |
| SELECT [List].*, [Group]. * | |
| FROM [List] | |
| LEFT JOIN [Group] | |
| ON [Group].[ID] = [List].[ID] | |
| ORDER BY [List].[CreatedAt] |
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