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If I have understood you correctly, the manual agrees with you:

"Note: The ASCEND and DESCEND keywords cannot be specified for an array data structure."

Remember, the ASCEND/DESCEND keywords are "used to describe the sequence of the data" - they don't perform any sequencing themselves. You will need to SORTA the Data Structure Array yourself before using %LOOKUPxx BIFs. There are some good examples in the RPG IV Reference under the SORTA operation.


On 02/12/2022 15:38, Vinay Gavankar wrote:
I think the key words here are "sequenced array". For that it must be
'defined' with Ascend or Descend. I don't know how to add that keyword on
data structure array (I get compile error).

Am I missing something?

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