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Full Name
Lech Cieślik
Full Name
ACE Pro
Top Level Details
Job Role
Oracle APEX Developer
Company
Pretius Low-code
Country
Poland
Top Expertise
Oracle APEX
Focus Area
APEX
About Lech
Lech Cieślik is an Oracle APEX expert with over 10 years of commercial experience. He works within international teams, gaining experience in healthcare, pharma, telecommunications, financial and retail sectors. Lech is a regular speaker at international conferences (APEX World, UKOUG, APEX Alpe Adria, OUGN), authors articles about Oracle APEX on the Pretius blog, and is a hackathon mentor.
Expertises
Oracle APEX
Home Page
https://lcieslik.hashnode.dev/
Links
Latest Contributions
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Spatial illusions in APEX: Map projections, Coordinate systems, and spatial functions
Dec 01, 2025 - Blog post -
Oracle APEX
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Spatial Illusions in APEX: Trusting SDO_ANYINTERACT Can Be a Mistake
Nov 03, 2025 - Blog post -
Oracle APEX
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Spatial Illusions in APEX: Why Coordinate Systems Matter More Than You Think
Oct 31, 2025 - Blog post -
Oracle APEX
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Everything you need to know to start working with maps in Oracle APEX
Oct 30, 2025 - Presentation - in-person or virtual - APEX Meetup Poland
Oracle APEX
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Spatial Illusions in APEX: How Map Projections Twist Reality
Oct 29, 2025 - Blog post -
Oracle APEX
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Easy Management of MapLibre Layers in Oracle APEX
Oct 28, 2025 - Blog post -
Oracle APEX
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Oracle Database App Developer newsletter - Oracle ACE program: Why you should join it and how to do it
Mar 31, 2025 - Article -
Oracle APEX
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Oracle ACE program: Why you should join it and how to do it
Feb 07, 2025 - Blog post -
Oracle APEX
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