How to get last insert/update/delet row of a table?

I hava a table A and table B which is a copy of A. I want to create a trigger to record the changes of A in B. So every time inserting/updating/deleting A I record the row inserted/updated/deleted in B, But I can't find a effiencial way to get the latest row changed.
So is there any sys_var in oracle table like cur_rowid or something to record the latest inserted/updated/deleted in a table? I don't want to check a index or a table to get the max_seq_id again.

user11228816 wrote:
I hava a table A and table B which is a copy of A. I want to create a trigger to record the changes of A in B. So every time inserting/updating/deleting A I record the row inserted/updated/deleted in B, But I can't find a effiencial way to get the latest row changed.
So is there any sys_var in oracle table like cur_rowid or something to record the latest inserted/updated/deleted in a table? I don't want to check a index or a table to get the max_seq_id again.Sounds like an ugly requirement, any reason you're not going for materialized views or advanced replication here?

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Message was edited by:
user569548

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pre-post-edit, noticed thread got updated just before posting
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post dreaded OTN outage edit (from here)
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How to get last insert/update/delet row of a table?

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