How to filter the lines in the engine of demand?

Hi gurus,

I have an APP engine that updates the custom table that gets inserted from the combination of 3 different tables of the PS.

If any of the PS table used in select Insert changes/updates, I need to update my data table custom through the app engine.

How to read lines that actuall changed?

for example:

I have 1000 lines of the select query, out of which only 10 rows of data is changed.

In the app engine, if I come to write the update statement it will process all 1000 lines to check the custom table update.

How to select only 10 lines and send it to my sql update?

Thanks in advance

In your DoSelect, you can use a subselect for rows that are modified.

so, something like:

Assuming you are using Oracle:

OF CustomTable has

IF (A.field1, A.field2, A.field3) ARE NOT (SELECT B.field1, B.field2, B.field3 OF Table B and add a clause where clause to limit the results of the subquery)

Tags: Oracle Applications

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