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Audit approach for performance tunning


Audit approach for performance tunning

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Megha P
Megha P
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we do have requirement of tracking insert,update and delete action of tables with tracking userid.
two approach is there.

1) creating single table with below fields:
LogID int
TableName int
Action tinyint (1= Insert,2=Update,3=Delete)
RecordID int
UserID int
CreatedDate DateTime(Default will be current date)

2) Add below fields in all the tables:
modifieddate datetime
modifiedUser int
transactionType Char(1) --this will have action like 'I','D' or 'U' for insert update and delete

which approach will be good for performance ?
LutzM
LutzM
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The second approach would require to replace the DELETE functionality with a solution that would add a DELETE flag. Otherwise you wouldn't have a row to add the modified* information ;-)

Maybe this link can help you to decide what solution would be the best for your scenario.



Lutz
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GilaMonster
GilaMonster
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It's not about performance, it's about what meets your requirements.

Option 2 will only show the last user who changed the row and won't show what they changed. If you need to see all the users who modified the row, then option 2 won't suffice.

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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azmiman
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GilaMonster (4/21/2014)
It's not about performance, it's about what meets your requirements.

Option 2 will only show the last user who changed the row and won't show what they changed. If you need to see all the users who modified the row, then option 2 won't suffice.


Is there any online resource that I can read on how to audit/track who change what value in a record? My audit requirement:
if some one changed a value / values in a record, I need to know who edit the record and which attribute(s) value has been changed (if possible, i need to know what was the original value)..

Thanks!
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