Old Way Change Capture
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USE Pantheon; | |
GO | |
DECLARE @Id int = 1 | |
-- ChangeLog data store | |
-- Yes, I know that they're all varchars... | |
DECLARE @ChangeLogTemp table | |
( | |
ColumnName varchar(100), | |
OldValue varchar(20), | |
NewValue varchar(20) | |
); | |
-- Old & New value data store | |
DECLARE @OutputTemp table | |
( | |
OldColumn1 int NOT NULL, | |
NewColumn1 int NOT NULL, | |
OldColumn2 char(1) NOT NULL, | |
NewColumn2 char(1) NOT NULL, | |
OldColumn3 date NOT NULL, | |
NewColumn3 date NOT NULL, | |
OldColumn4 bigint NULL, | |
NewColumn4 bigint NULL, | |
OldColumn5 varchar(50) NOT NULL, | |
NewColumn5 varchar(50) NOT NULL, | |
OldColumn6 datetime NULL, | |
NewColumn6 datetime NULL | |
); | |
-- Actual update, outputting the old and new values | |
UPDATE gac | |
SET gac.Column1 = 1, | |
gac.Column2 = 'B', | |
gac.Column6 = GETDATE() | |
OUTPUT Deleted.Column1, Inserted.Column1, | |
Deleted.Column2, Inserted.Column2, | |
Deleted.Column3, Inserted.Column3, | |
Deleted.Column4, Inserted.Column4, | |
Deleted.Column5, Inserted.Column5, | |
Deleted.Column6, Inserted.Column6 | |
INTO @OutputTemp | |
FROM dbo.GotAnyChange AS gac | |
WHERE gac.GotAnyChangeID = @Id; | |
-- Capture changes. 1 for each column we want to capture | |
INSERT INTO @ChangeLogTemp | |
SELECT 'Column1', | |
OldColumn1, | |
NewColumn1 | |
FROM @OutputTemp | |
WHERE ISNULL(OldColumn1, NewColumn1) <> NewColumn1; | |
INSERT INTO @ChangeLogTemp | |
SELECT 'Column2', | |
OldColumn2, | |
NewColumn2 | |
FROM @OutputTemp | |
WHERE ISNULL(OldColumn2, NewColumn2) <> NewColumn2; | |
INSERT INTO @ChangeLogTemp | |
SELECT 'Column3', | |
OldColumn3, | |
NewColumn3 | |
FROM @OutputTemp | |
WHERE ISNULL(OldColumn3, NewColumn3) <> NewColumn3; | |
INSERT INTO @ChangeLogTemp | |
SELECT 'Column4', | |
OldColumn4, | |
NewColumn4 | |
FROM @OutputTemp | |
WHERE ISNULL(OldColumn4, NewColumn4) <> NewColumn4; | |
INSERT INTO @ChangeLogTemp | |
SELECT 'Column5', | |
OldColumn5, | |
NewColumn5 | |
FROM @OutputTemp | |
WHERE ISNULL(OldColumn5, NewColumn5) <> NewColumn5; | |
INSERT INTO @ChangeLogTemp | |
SELECT 'Column6', | |
OldColumn6, | |
NewColumn6 | |
FROM @OutputTemp | |
WHERE ISNULL(OldColumn6, NewColumn6) <> NewColumn6; | |
-- Capture all changes as an XML | |
SELECT ColumnName AS CN, | |
OldValue AS OV, | |
NewValue AS NV | |
FROM @ChangeLogTemp | |
FOR XML PATH('Change'), ROOT('Changes'); |
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