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PostgreSQL with Ktor using Exposed || Part 07 - Column Transformation & Null Transformation

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Apr 11, 2025
14:02

In this video, we’ll dive into Column Transformations in the Exposed ORM for Kotlin. Learn how you can store a value in one type (like LocalTime) in the database, but transform it into a more meaningful type (like an enum) when querying in your Kotlin code. We’ll cover: ✅ Why and when to use column transformations ✅ How to use transform { wrap, unwrap } in Exposed ✅ A practical example using an ActiveTimeCategory enum 🔗 Resources & Links 📌 Playlist: https://www.youtube.com/playlist?list=PL3_Xm4wcQKw3VJxUiXzWO57wrLAgRp0Hh 📌 Ktor Fundamentals Playlist: https://www.youtube.com/playlist?list=PL3_Xm4wcQKw1DCU1lPSVhuCMYHg-pLVKI 📌 Ktor Project Generator: https://start.ktor.io 📌 Ktor Docs: https://ktor.io 📌 Exposed Docs: https://www.jetbrains.com/help/exposed/home.html 📌 Source Code:https://github.com/akashkamati/ktor-with-postgres #KotlinServerSide #ktor #postgres #exposed #datatypespostgres #columntransformation #postgresusingkotlin #hikaricp #dockerpostgresadminersetup #backenddevelopment #kotlininbackend #ktorserver #kotlin

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PostgreSQL with Ktor using Exposed || Part 07 - Column Transformation & Null Transformation | NatokHD