T-SQL - combine multiple rows into one using timestamp - tsql

Question

I am trying to combine multiple rows into one based on a unix timestamp which I created from a datetime using a self created scalar function.
I need to modify the T-SQL below so that lines that have the same timestamp are displayed on one row rather than multiple:
USE [NDTMS2Utils]
GO
SELECT [Timestamp],
[Logger],
[KeyIndicator],
[GeographicArea],
CASE
WHEN LocalAuthority = '- Restricted' THEN 'No LA Selected - Restricted'
WHEN LocalAuthority = '- Public' THEN 'No LA Selected - Public'
ELSE LocalAuthority
END AS LocalAuthority,
CASE
WHEN SubstanceGroup = '- Restricted' THEN 'All - Restricted'
WHEN SubstanceGroup = '- Public' THEN 'All - Public'
ELSE SubstanceGroup
END AS SubstanceGroup,
CASE
WHEN Gender = '- Restricted' THEN 'All - Restricted'
WHEN Gender = '- Public' THEN 'All - Public'
ELSE Gender
END AS Gender,
CASE
WHEN AgeGroup = '- Restricted' THEN 'All - Restricted'
WHEN AgeGroup = '- Public' THEN 'All - Public'
ELSE AgeGroup
END AS AgeGroup
FROM (
SELECT [dbo].[UNIX_TIMESTAMP]([Date]) AS [Timestamp],
[Logger],
CASE WHEN [Message] LIKE '%Key Indicator%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Restricted') END AS [KeyIndicator],
CASE WHEN [Message] LIKE '%Region%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Restricted') END AS [GeographicArea],
CASE WHEN [Message] LIKE '%Area%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Restricted') END AS [LocalAuthority],
CASE WHEN [Message] LIKE '%Substance Category%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Restricted') END AS [SubstanceGroup],
CASE WHEN [Message] LIKE '%Gender%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Restricted') END AS [Gender],
CASE WHEN [Message] LIKE '%AgeGroup%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Restricted') END AS [AgeGroup]
FROM [Log]
WHERE (Message LIKE '%ViewIt - View Data - the selected%') AND Logger != ''
GROUP BY [Date], [Logger], [Message]
UNION ALL
SELECT [dbo].[UNIX_TIMESTAMP]([Date]) AS [Timestamp],
'Public',
CASE WHEN [Message] LIKE '%Key Indicator' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Public') END AS [KeyIndicator],
CASE WHEN [Message] LIKE '%Region%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Public') END AS [GeographicArea],
CASE WHEN [Message] LIKE '%Area%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Restricted') END AS [LocalAuthority],
CASE WHEN [Message] LIKE '%Substance Category%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Restricted') END AS [SubstanceGroup],
CASE WHEN [Message] LIKE '%Gender%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Restricted') END AS [Gender],
CASE WHEN [Message] LIKE '%AgeGroup%' THEN LTRIM(REPLACE(SUBSTRING([Message], CHARINDEX(':', [Message]), LEN([Message])), ':', '') + ' - Restricted') END AS [AgeGroup]
FROM [Log]
WHERE (Message LIKE '%ViewIt - View Data - the selected%') AND Logger = ''
GROUP BY [Date], [Logger], [Message]
) AS f
ORDER BY CONVERT([Date], GETDATE()) ASC, [Logger]
Currently the data looks like this when the above query is run:
The table below shows the format that I am trying achieve:
How do I modify the query to display the results above?

Answer 1

This is a simple CROSS TAB problem, note this article by Jeff Moden.
Since you don't have any DDL or easily consumable sample data I created my own simplified sample data that should be enough.
-- Sample Table
DECLARE #yourtable TABLE
(
TStamp BIGINT,
Logger VARCHAR(40),
Pet VARCHAR(20),
Car VARCHAR(30),
Fruit VARCHAR(20)
);
-- Sample Data
INSERT #yourtable (TStamp,Logger,Pet,Car,Fruit)
VALUES
(154377379, '07F09981-C723-4DB3-A4C4-2842F26D102A',NULL,NULL,'Apple'),
(154377379, '07F09981-C723-4DB3-A4C4-2842F26D102A',NULL,'Porche',NULL),
(154377379, '07F09981-C723-4DB3-A4C4-2842F26D102A','Cat',NULL,NULL),
(151173333, '84BEDA9D-D525-4A95-B1D7-4D9A74EB0422',NULL,NULL,'Orange'),
(151173333, '84BEDA9D-D525-4A95-B1D7-4D9A74EB0422',NULL,'Subaru',NULL),
(151173333, '84BEDA9D-D525-4A95-B1D7-4D9A74EB0422','Frog',NULL,NULL),
(151177855, '84BEDA9D-D525-4A95-B1D7-4D9A74EB0422',NULL,NULL,'Grapes'),
(151177855, '84BEDA9D-D525-4A95-B1D7-4D9A74EB0422',NULL,'Hovercraft',NULL),
(151177855, '84BEDA9D-D525-4A95-B1D7-4D9A74EB0422','Bird',NULL,NULL);
-- Solution
SELECT
TStamp = t.TStamp,
Logger = T.Logger,
Pet = MAX(CASE WHEN t.Pet IS NOT NULL THEN t.Pet END),
Car = MAX(CASE WHEN t.Car IS NOT NULL THEN t.Car END),
Fruit = MAX(CASE WHEN t.Fruit IS NOT NULL THEN t.Fruit END)
FROM #yourtable AS t
GROUP BY t.TStamp, t.Logger;
Results:
TStamp Logger Pet Car Fruit
----------- ---------------------------------------- ------ ------------ --------
154377379 07F09981-C723-4DB3-A4C4-2842F26D102A Cat Porche Apple
151173333 84BEDA9D-D525-4A95-B1D7-4D9A74EB0422 Frog Subaru Orange
151177855 84BEDA9D-D525-4A95-B1D7-4D9A74EB0422 Bird Hovercraft Grapes