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In stored procedures and UDF/UDTF of DB2 for i, I would like to be able to declare an array like in this example :
DECLARE TYPE CARD_NUMBER AS VARCHAR(1) ARRAY [24];
… this is already possible on DB2 LUW, as can be seen in this example:
https://rosettacode.org/wiki/Luhn_test_of_credit_card_numbers#SQL_PL
Idea priority | Medium |
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I regret your decision to close this ticket.
I do not understand what is the interest of disseminating in a database some arrays that are specific to a given procedure. This is counterproductive and can cause maintenance problems.
The database development team has a long list of higher priority requests to satisfy, so it is unlikely that this enhancement will be delivered any time soon.
Db2 for i has support for arrays in SQL PL, but you must declare the array data type using the CREATE TYPE statement. This defines a data type that can be referenced by any SQL PL routine, not scoped to a specific one.
The equivalent of this declare:
DECLARE TYPE CARD_NUMBER AS VARCHAR(1) ARRAY [24];
DECLARE REVERSE CARD_NUMBER;
is:
-- outside of the SQL PL create the type
CREATE TYPE CARD_NUMBER AS VARCHAR(1) ARRAY[24];
-- within the SQL PL, reference the type
DECLARE REVERSE CARD_NUMBER;
An unqualified array data type is resolved using the SQL Path.
Db2 for i development
IBM Power Systems Development