Import data from JSON to PostgreSQL via command line on Windows

by

Posted on by

Want to import data from JSON Lines (JSONL) to PostgreSQL via Command Line Interface (CLI) on Windows?

Using pg-cmd, a Command Line Interface (CLI) client for PostgreSQL, you can import data from JSON Lines to PostgreSQL easily and fast. Direct Interaction or Scripting and Automation.

  • No need to install PostgreSQL client library.
  • Convenient to deploy to cloud. No need to run installation file, just uncompress and run, immediately.
  • Commands are entered into a terminal or command prompt, accessed from local or remote (like SSH).
  • Support Windows, Linux, and MacOS.

Download pg-cmd Windows version Download pg-cmd

JSON Lines text format, also called newline-delimited JSON (NDJSON), or Line-delimited JSON (LDJSON). JSON Lines files may be saved with the file extension .jsonl, *.ndjson, *.ldjson.

Import data from JSON Lines to PostgreSQL via command line on Windows

1. In interactive mode:

pg-cmd> load table=media_messages 
      > datafile=f:\media_messages.json 
      > filetype=json;

2. In batch mode:

pg-cmd dsn="pan:withdata@192.168.0.102:3306/test" task=load table=media_messages datafile=f:\media_messages.json filetype=json quit=y

“loadtype=replace” will delete all data in table before inserting.

See parameters detail.

More about pg-cmd – Command Line Interface (CLI) tool for PostgreSQL

Download pg-cmd Windows versionDownload pg-cmd