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how to compare two rows in PL/SQL and retrieve the values?

J.RMCAug 15 2012 — edited Aug 17 2012

Hello,

I have two tables which have identical schemas, one table (tbl_store) is used to hold the latest version, and the other table (tbl_store_audit) holds previous versions. When the latest record is updated, it is inserted into the tbl_store_audit table as a revision, and the updated details are used as the latest record.

For example: The latest version is held in tbl_store, however the tbl_store_audit may hold 5 records which are the past records used before changes were made - these are seen as revisions.

I want to be able to compare what has changed between each revision in the tbl_store_audit table. For example: Out of the 10 columns, the change between revision 1 and revision 2 was the size from XL to XXL. The change between revision 3 and revision 4 was the size XS to M and price 4.99 to 10.99, and so on.

Eventually i will create an APEX report that will show the user the revision number and what was changed from and to.

I seen in a previous post i need to note my oracle version: Oracle version 10.2.0.4.0

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Locked on Sep 14 2012

Added on Aug 15 2012

#apex, #pl-sql, #plsql, #sql-developer

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