NYC School of Data - High School Selection Workshop

NYC School of Data
Open Data + High School Selection Workshop
Marc Sewtz
Senior Software Development Manager
Oracle Application Express, Oracle Database Server Technologies
March 7th, 2020
1 Copyright © 2020, Oracle and/or its affiliates

Marc Sewtz
Senior Software Development Manager
Oracle Application Express
Short Bio:
• Oracle Germany, Hamburg 1998-1999
• Oracle USA, New York, NY 1999 – today
• APEX Development Team since 2002
Twitter: @msewtz
LinkedIn: http://www.linkedin.com/in/msewtz

The following is intended to outline our general product direction. It is intended for information purposes
only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code,
or functionality, and should not be relied upon in making purchasing decisions. The development,
release, timing, and pricing of any features or functionality described for Oracle’s products may change
and remains at the sole discretion of Oracle Corporation.
Statements in this presentation relating to Oracle’s future plans, expectations, beliefs, intentions and
prospects are “forward-looking statements” and are subject to material risks and uncertainties. A detailed
discussion of these factors and other risks that affect our business is contained in Oracle’s Securities and
Exchange Commission (SEC) filings, including our most recent reports on Form 10-K and Form 10-Q
under the heading “Risk Factors.” These filings are available on the SEC’s website or on Oracle’s website
at http://www.oracle.com/investor. All information in this presentation is current as of September 2019
and Oracle undertakes no duty to update any statement in light of new information or future events.
Safe Harbor
Copyright © 2020, Oracle and/or its affiliates

Oracle Mission Statement
“Our mission is to help people see data in
new ways, discover insights, unlock endless
possibilities”
Seattle Analyst Summit 1/28/2020 | Oracle Confidential Under NDA

Agenda
• Low Code Application Development with Oracle APEX
• New York City Open Data
• Hands-on exercise: Working with the DOE High School Directory Dataset on NYC Open Data
• Hands-on exercise: Creating a workspace on apex.oracle.com
• Hands-on exercise: Building a Faceted Search app on DOE High School Directory
• Socrata Open Data API Overview
• Demo: Building an app on a REST API using student demographic and enrollment data

Low Code
Application Development
with Oracle APEX

Quote
“My personal favorite, however, was Oracle APEX, the company’s
low-code development platform that gives mere mortals without
programming skills the opportunity to quickly develop simple,
but useful and scalable business applications.”
Alexei Balaganski, KuppingerCole , Will 2020 Be the Year of Oracle Cloud?
https://www.kuppingercole.com/blog/balaganski/will-2020-be-the-year-of-oracle-cloud

Application Development in the Enterprise today
• Requires specialized and
expensive development resources
• Long app dev cycles
• Minimal Collaboration
• Large Backlog
• Business solves problems with the wrong tools

The Benefits of Low Code Frameworks
• Low barrier of entry
• Rich functionality
• High productivity (Less coding)
• Concentrate on business requirements
• Release apps faster with lower cost

Gartner Quote
Did you know that by 2024,
low code application development
will be responsible for more than
65% of app dev activity?
Gartner Low-Code Development Technologies Evaluation Guide - February 26, 2019

What is Oracle APEX?
A low-code development
platform that enables you
to build scalable and
secure enterprise apps with
world-class features that
can be deployed anywhere.

What is Oracle APEX?
• All-inclusive, Low Code Application Development Platform
• Used to build apps that manage and visualize data
• Leverages SQL skills and Oracle Database capabilities
• Easy to learn, develop and deploy

Oracle APEX - Architecture
Database
Schemas
https
Web Sources
REST APIs
Oracle Database &
Oracle APEX
Oracle REST
Data Services
Web Browser
Desktop / Mobile
JDBC
APEX
Engine
SQL &
PL/SQL
No Application Logic
Converts HTTP to database API calls
Zero latency database data access
Dynamically driven by APEX metadata

Oracle APEX - Availability
Oracle Cloud
Autonomous Database
Serverless (ATP, ADW)*
Autonomous Database
Dedicated
Database Cloud Service
(DBCS)
apex.oracle.com
(free schema service)
On Premises
Oracle Database XE
(free database)
Oracle Enterprise
Edition (and all other
editions)
Oracle Exadata
Third Party Cloud
Amazon RDS
For Oracle Database
MaxAPEX Hosting
Any third-party Cloud /
Hosting provider that
supports Oracle DB
* Available on Always Free Configuration

New York City Open Data

https://opendata.cityofnewyork.us

https://opendata.cityofnewyork.us/data

Popular Data Sets

Hands-On Exercise 1
Working with the
DOE High School Directory
dataset on NYC Open Data

• Search for Dataset “2020 DOE High School Directory”

• Review Dataset
https://data.cityofnewyork.us/Education/2020-DOE-High-School-Directory/23z9-6uk9

• Scroll down to column definition and table preview

• Use “View Data” to filter, export and visualize data in dataset

Hands-On Exercise 2
Creating a Workspace on
apex.oracle.com

• To get started, open apex.oracle.com in your web browser
• Then click on the “Sign In” button

• If you haven’t created a workspace before, click on the “Request a Workspace”
link below the “Sign In” button

• Enter your first name, last name, email and your desired workspace name

• Click “Next” button

• Complete the brief survey

• As the justification, simply enter “Training”

• Review and accept the service agreement terms

• Review and submit your workspace request

• Wait a few minutes for your workspace activation email to arrive

• In your approval email, click on “Create Workspace”

• Once workspace has been created, continue to sign in screen

• Enter and confirm your new password and click “Apply Changes”

• This is the APEX home page – you’re now ready to start coding!

Hands-On Exercise 3
Hands-on exercise:
Building a Faceted Search app
on the DOE High School
Directory

• Download DOE High School Directory as a CSV (Excel) file

• We’ll be using simplified version: http://bit.ly/nyc_high_schools

• Go back to the APEX home page, and click on the “App Builder” icon

• On the App Builder home page, click the ”Create a New App” button

• Click on “From a File” to create a new app based on our spreadsheet

• You can either upload a file or copy & paste the data

• Click on “Copy & Paste”

• Open your high school spreadsheet in another tab, select all and copy all (Cmd/Ctrl-C)

• Paste the high school data into the wizard and click “Next”

• Specify a table name, which will be used to load the high school data into the database

• Make sure to select “First line contains headers” to derive the column names from the first row
• Click ”Load Data” to create the table and upload the data

• After all row have been loaded successfully, click on “Create Application”

• Enter a name for your high school app and review the list of auto-generated pages

• Scroll down the page, and click “Create Application”

• APEX is now creating an app on the newly create high school table

• Once the app has been created, you will be taken to the App Builder home page
showing all pages of the new app. Click on “Run Application”

• On the login screen, enter your APEX username and password
• You can later configure an authentication scheme of your choice, e.g. Google/Facebook/Twitter, etc.

• Once logged into your app, you see the home page with links to the main reports
• Click on ”NYC High School Search”

• On the NYC High School Search page, you’ll be able to narrow down your choices based on
a variety of facets, that were derived from the data we uploaded

Socrata Open Data API
Overview

The Socrata Open Data API
• Every Socrata Open Dataset has a built-in SODA API.
• The “endpoint” of a SODA API is simply a unique URL that
represents an object or collection of objects.
• Every Socrata dataset, and even every individual data record,
has its own endpoint.
• The endpoint is what you’ll point your HTTP client at to interact
with data resources.

• Example: 2020 DOE High School Directory:
https://data.cityofnewyork.us/resource/23z9-6uk9.json
• All resources are accessed through a common base path
of /resource/ along with their dataset identifier.
• All datasets have a unique identifier - eight alphanumeric characters split
into two four-character phrases by a dash.
• Once you’ve got your API endpoint, you can add on filtering and
SoQL parameters to filter and manipulate your dataset.

• SODA APIs are self-describing — schema and contents of the dataset itself
determines how it can be queried.
• Any field within the data can be used as a filter, simply by appending it to
the API endpoint as a GET parameter.
• For example, to get High Schools in Brooklyn:
https://data.cityofnewyork.us/resource/23z96uk9.json?borough=BROOKLYN

• “Socrata Query Language” (SoQL) is a simple, SQL-like query language
designed for making it easy to work with data on the web
Parameter Description Default In $query
$select The set of columns to be returned, similar to a SELECT in SQL All columns SELECT
$where Filters the rows to be returned, similar to WHERE No filter WHERE
$order Column to order results on, similar to ORDER BY in SQL Unspecified order ORDER BY
$group Column to group results on, similar to GROUP BY in SQL No grouping GROUP BY
$having Filters the rows that result from an aggregation No filter HAVING
$limit Maximum number of results to return 1000 LIMIT
$offset Offset count into the results to start at, used for paging 0 OFFSET
$q Performs a full text search for a value. No search N/A
$query A full SoQL query string, all as one parameter N/A N/A

Demo
Building an app on a REST API
using student demographic
and enrollment data

2018-2019 School Demographic Snapshot
https://data.cityofnewyork.us/Education/2018-2019-School-Demographic-Snapshot/45j8-f6um

apex.oracle.com
Learn More:
• Getting Started
• Architecture
• Features
• Use Cases
• Success Stories
• Tutorials and Videos

NYC School of Data - High School Selection Workshop

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