Hi Eduardo,
I don't know well Informix auditing features.
However, you could create "internal authenticated users", to avoid to create 70 system users:
https://www.ibm.com/docs/en/informix-servers/14.10.0?topic=statements-create-user-statement-unix-linux
I assume (I hope!) Informix auditing features also applies to internal authenticated users.
How does your application connect to the server? In what programming language?
Seb
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Sebastien FLAESCH
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