Re: Given a list of objects, run SQL Queries on it

Compared to ACS it allows for easy export of the result set on an excel >

iACS does a fine job of this.
First, before you run your SQL: Edit, Preferences, Connections, allow

I like and use ACS, especially when deep insights like the explain graph are needed and ibmi sql generation specificities.  But much more limited compared to the tool I mentioned regarding ordinary SQL interactive querying and jobs (keeping in mind that works against also other jdbc dbms).
You can have - say - a saved list of statements, you run that, and you get each result set targeting a different sheet in the same excel , that is opened after generation properly named (all specified in a command), ideal for a quick "audit". You want json instead of xlsx, it is there too.
Also blob handling is far better (i.e. can be saved to filesystem using a result set field...).Really a nice tool (and open, so I'm not advertising anything), I'm using it since years (against non db2 stuff as well).Resultset tab pinning, integrated ssh tunnelling...
Can run on ibmi (it is java and has a command line interface not only gui). I've run it even in ibmi gui using xwindows, worked pretty fine.It work also as data copier between databases.The author is responsive and knowledgeable, and inserted even some ibmi specificities .

my 2c