# Lazy database join

**URL:** <https://discourse.julialang.org/t/lazy-database-join/37304>\
**Category:** General Usage\
**Tags:** question, performance, dataframes, big-data\
**Created:** [April 9, 2020, 11:55pm UTC](https://discourse.julialang.org/t/lazy-database-join/37304 "2020-04-09T23:55:47Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![Jakob](https://avatars.discourse-cdn.com/v4/letter/j/71c47a/32.png) [@Jakob](https://discourse.julialang.org/u/Jakob)\
**Post date:** [April 10, 2020, 6:45am UTC](https://discourse.julialang.org/t/lazy-database-join/37304/4 "2020-04-10T06:45:35Z")

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This is possible with JuliaDB, see the [docs](https://juliacomputing.github.io/JuliaDB.jl/latest/out_of_core/#Join-to-Big-Table-1). I’ve had some [problems](https://discourse.julialang.org/t/error-when-performing-join-on-distributed-tables-juliadb/35800) in the past with these joins and I’m not sure if JuliaDB is being actively maintained at the moment but often it also just worked fine so I’d just give it a try.

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