A beginner-friendly REPL that combines
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(ns datomic-helpers | |
(:require [datomic.api :as d])) | |
;;; Expose Datomic vars here, for convenience | |
;;; Ring middleware | |
(defn wrap-datomic | |
"A Ring middleware that provides a request-consistent database connection and | |
value for the life of a request." |
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-- show running queries (pre 9.2) | |
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query | |
FROM pg_stat_activity | |
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' | |
ORDER BY query_start desc; | |
-- show running queries (9.2) | |
SELECT pid, age(clock_timestamp(), query_start), usename, query | |
FROM pg_stat_activity | |
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' |
Stuart talking about them as part of the Day of Datomic videos:
https://youtu.be/ZP-E2IgqKfA?t=2412
Simple data structure for anomalies.
These resources (articles, books, and videos) are useful when you're starting to learn the language, or when you're learning a specific part of the language. This an opinionated list, no doubt. I've compiled this list from writing and teaching Clojure over the last 10 years.
- 🔴 Mandatory (for both beginners and intermediates)
- 🟩 For beginners
- 🟨 For intermediates