Oracle-L: RE: Need a delete trigger that tracks deletes.

From: <tday6_at_csc.com>
Date: Tue, 19 Mar 2002 05:28:20 -0800
Message-ID: <F001.0042CE98.20020319052820@fatcity.com>

I'd also add a date/time stamp and the Oracle userid of the deleter. Heck, why not also journal inserts and updates? Or maybe you can get all this from logminer.

                                                                                           
                    Kevin Lange                                                            
                    <kgel                To:     Multiple recipients of list ORACLE-L      
                    @ppoone.com>         <ORACLE-L_at_fatcity.com>                            
                    Sent by: root        cc:                                               
                                         Subject:     RE: Need a delete trigger that       
                                         tracks deletes.                                   
                    03/18/2002                                                             
                    05:43 PM                                                               
                    Please                                                                 
                    respond to                                                             
                    ORACLE-L

Why not simply a Before Delete trigger that copies the row about to be deleted over to a duplicate table. This way you can know exactly what the data was before it was deleted. Of course, if you only care about a certain field or group of fields you can always just copy those fields instead of all fields.

-----Original Message-----

Sent: Monday, March 18, 2002 4:18 PM
To: Multiple recipients of list ORACLE-L

We need to be able to track what records have been deleted from a table.

Our current thinking is
1. A "before delete" trigger, that stores a unique ID of the all the data in
the table.
2. A "after delete" trigger, which gets the records left in the table. 3. Subtract the two lists to find the records that have been deleted.

This appears to be cumbersome, is there anyway to do this with one trigger ?

Thanks

Darren

Darren Browett P.Eng                               This message
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Author: Kevin Lange
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