Tracking Change History, By Column...

This one is giving me quite a bit more difficulty then I ever imagined it would...

Essentially I would like to use one table to store the change history for multiple tables. I would like to use an update trigger to check which fields have changed in each record, and write a single record for each field that changed containing the table name, field name, previous value and new value to a history table.

I can't seem to find a good way to do this.

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Tracking The History Of Changes.

Hi all,

I have several transaction tables on which I need to track the changes. That is I need to maitain
the history of changes. Only few column values are changed often.

Which is the best way for tracking the changes.

1.Store the whole record after the change ?


2.Store the ColumnName & its respective old & new value ?

Or any other better.

Note : UI part & SP's will take care of the tracking & no plans for triggers.

Thanks in advance,


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Has anyone come across a change tracking tool for SQL Server. Specificallythe scenario I want is the following :A Production DB needs some modifications to its content.This tool will copy the DB to a dev environment.The Dev environment will be 2 copies of the DB, 1 as a control set and theother the change DB.The developer makes their changes in the Change DB. They test them out andthen when they decide the changes are ready to pushto production they hitthe "go" button on the tool.The tool calculates the delta between the Control and the Change DB and thenpushes the changes to producitonAny ideasThankss

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I'm running Sql Server 2000 sp4 with full text catalog on a Windows 2003 server. When testing with a restored large customer database, we've noticed that the change tracking isn't working properly. We have a tool that reads from some text files and adds/updates records in the database. After this tool is run, I see rows in the sysfulltextnotify table. However, they just sit there and are never cleaned out unless I rebuild the catalog. Once I do that, I get results when running a search. If I don't rebuild the catalog, I get no results when searching on the new data.
Now, when I use a much smaller database, change tracking works just fine. Any ideas? Some researching suggested that I should have at least 15% free disk space on the drive where the FT Catalog files reside, which I definitely do not have. If it's a space issue, will I see errors in the event log? I currently do not see any errors there. Any other ideas about things I can check?

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Thanks in advance

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I need to record in a table:
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When changes occur to an existing record.

The purpose is for users to occassionally view the changes. They'll want to be able to see the history of the record - who changed what and when.

I figured I'd add the needed code to the stored procedure that's doing the update for the record.

When the stored procedure is called to do the update, the PK and parameters are sent.

The SP could first retain the current state of the record from the disk,
then do the update, then "spin" thru the fields comparing the record state prior to the update and after. Differences could be parsed to a "Changes string" and in the end, this string is saved in a history record along with a few other fields:

Name, DateTime, Changes

FK to Changed Record: some int value
Name: Joe Blow
Date: 1/1/05 12:02pm
Changes: Severity: 23 Project: Everest Assigned Lab: 204

How does the above approach sound?

Is there a better way you'd suggest?

Any sample code for a system that spins thru the fields comparing 1 temporary record with another looking for changes?



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I am using SQL 2000. I have the foll commad and the result set is as follows. I need to get data for 2/22/06 rather than the other dates.

Thanks in advance

select * from dbArchive..EMSecurityModelValSaveD where ModelID = 1 AND SecurityID = 60952

200602171NULL23559455660952-1.8737706198803314E-22006-02-16 00:00:00.0002006-02-17 04:34:07.213
200602201NULL23559455660952-1.8824870098869399E-22006-02-17 00:00:00.0002006-02-18 04:42:49.737
200602211NULL23559455660952-1.8973066282962407E-22006-02-20 00:00:00.0002006-02-21 03:10:07.203
200602221NULL23559455660952-1.9135545221188051E-22006-02-21 00:00:00.0002006-02-22 04:25:07.217

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SELECT'1000', '675' UNION ALL
SELECT'1001', '600' UNION ALL--Changed
SELECT'1001', '545' UNION ALL
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-- 1000Null767
-- 1001 1000 675
-- 1000 1001 765
-- 1002 1000 343
-- 1001 1002 823

Any suggestion ?

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