First thing, turn you list of customers into a separate table.
Paul
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Javier
Sanchez
Sent: Tuesday, July 14, 2020 3:48 PM
To: rpg400-l@xxxxxxxxxxxxxxxxxx
Subject: Rows NOT found in cursor search
Good day everyone.
I need to update a table whose key is a customer number, say a NUMERIC(9,0).
I have to search with a cursor, for example like this:
EXEC SQL DECLARE CSR0001 CURSOR FOR
SELECT * FROM CUSTOMER_MASTER WHERE CUSTOMER_NUMBER IN ( 123456789,
234567890,
345678901,....)
and assume that it is a literal very large list of customer numbers, say
over 20,000.
I need to do a simple update of a column for some status for each found row.
But I need also to report which row was NOT found in this search in order to
do some other task.
I suspect I should use a MERGE for this, but if I only use this cursor
approach, how does one know which rows are NOT found within the literal list
while the engine is searching?
Is there a kind of "exit" event to capture when the engine DOES NOT find a
matching row?
Thanks in advance.
JS
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