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flava

Faker for Snowflake in Java. Generates fake data natively on Snowflake.

Uses java-faker by DiUS: https://github.com/DiUS/java-faker

This repo is a sequel to the flaker repo. With flaker, faker runs in python on AWS API Gateway and is invoked as an External Function on Snowflake.

In this repo, we create a Java UDF which runs entirely within the Snowflake warehouse. Much easier to deploy!

Installation

Clone this repo

Use your favourite Git client to clone this repository on your locale machine.

Install and configure SnowSQL

See https://docs.snowflake.com/en/user-guide/snowsql-install-config.html

Upload jars to your Snowflake user stage

snowsql -q "put 'file://target/*.jar' @~; put 'file://target/dependency/*.jar' @~"

Create the fake function:

snowsql -f fake.sql

Examples

10 Fake names in the en_US locale:

snowsql -q "select fake('en_US','#{Name.FullName}') as FULL_NAME from table(generator(rowcount => 10));"

20 Fake addresses in the ja_JP locale:

snowsql -q "select fake('ja_JP','#{Address.StreetAddress}') as STREET_ADDRESS from table(generator(rowcount => 10));"

Full reference

Here's all the things you can generate:

http://dius.github.io/java-faker/apidocs/index.html

Downloading libraries from maven

I committed the dependencies to this repo to avoid the hassle of doing this. But if you prefer, here's how you can do it from scratch.

Install a Java runtime environment

On Linux/WSL:

sudo apt install default-jre-headless

Install Maven

On Linux/WSL:

sudo apt install maven

Download javafaker and dependancies

mvn install dependency:copy-dependencies

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