philippetedajo

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

chaxiu

Diagram Coroutines: suspend

1. Preface

Coroutines is the most amazing feature in Kotlin.

In this post, I'll briefly introduce Kotlin coroutines, and then explain Coroutines in the form of Diagram + Animation. After reading this post, you may find out that Coroutines is not that difficult.