Add Asciinema recording

Author: joonas-fi

README.md

@@ -60,6 +60,12 @@ The end result is pretty nice, as from host perspective the only tool required i
 install MySQL/PostgreSQL if all you want is to load the .sql dump and transform it to JSON.
 Just remove the temporary DBMS and sql2json containers when you're done and your system is clean as ever. :)
 
+Demo
+====
+
+[![asciicast](https://asciinema.org/a/722yo4odqo1sulztyaeaxz4k1.png)](https://asciinema.org/a/722yo4odqo1sulztyaeaxz4k1)
+
+
 Walkthroughs
 ============
 

misc/asciinema_script.sh

@@ -0,0 +1,38 @@
+
+PS1='\[\033[0;33m\]~/sql2json \$ \[\033[0m\]'
+
+
+# here's the .sql file we have that we would like to export as JSON
+cat example_dataset/Chinook_PostgreSql.sql.gz | gzip -d | head -30
+
+# first we'll launch Postgres instance so we can import the data there
+docker run -d --name sql2json-dbserver -p 5432:5432 kiasaki/alpine-postgres:9.5
+
+# then we'll create an empty database
+echo 'CREATE DATABASE chinook' | docker exec -i sql2json-dbserver psql -U postgres postgres
+
+# now we'll import the data into it
+cat example_dataset/Chinook_PostgreSql.sql.gz | gzip -d | docker exec -i sql2json-dbserver psql -U postgres chinook > /dev/null
+
+# let's find out the IP address of the database server
+docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' sql2json-dbserver
+
+# create directory for the resulting JSON files
+mkdir sql2json_result
+
+# and now export the database as JSON
+docker run --rm -it -v "$(pwd)/sql2json_result:/result" -e "DSN=postgres,,pgsql:dbname=chinook;host=172.17.0.2;port=5432" joonas/sql2json
+
+# take a look at the resulting file structure
+tree sql2json_result/
+
+# now you can work with the dataset from the commandline
+cat sql2json_result/data/Album.json.gz | gzip -d | jq '.[0]'
+
+# even sort the whole table by "Title" column
+cat sql2json_result/data/Album.json.gz | gzip -d | jq '.[].Title' | sort | head -10
+
+# destroy the database instance
+docker rm -f sql2json-dbserver
+
+# thanks for watching!