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Learning Heroku Postgres

By : Patrick Rafael de Oliveira Espake
Book Image

Learning Heroku Postgres

By: Patrick Rafael de Oliveira Espake

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Learning Heroku Postgres
Patrick Rafael de Oliveira Espake
Feb, 2015 | 164 pages
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Table of Contents (17 chapters)
Learning Heroku Postgres
Learning Heroku Postgres
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with Heroku Postgres
Getting Started with Heroku Postgres
How does Heroku work?
Postgres supported versions
Choosing the right Heroku Postgres plan
Production-tier technical characterization
High availability
Self-test Questions
Summary
2
Heroku Toolbelt
Heroku Toolbelt
Signing up
Installing the Heroku Toolbelt
Logging in to Heroku
Deploying an application
The sample application source code
The dependencies file
Deploying the sample application
Visiting the sample application
Self-test questions
Summary
3
Postgres Add-on
Postgres Add-on
Local setup
Creating a new app
Adding the add-on and creating the first database
Heroku Postgres web interface
Using the Heroku client with Postgres
Connecting with Java
Connecting with Python
Connecting with Django
Connecting with Node.js
Connection permissions
Multiple schemas
External connections
Connecting to databases from outside Heroku
Monitoring and logging
Removing the add-on
Self-test Questions
Summary
4
PG Backups
PG Backups
Plans
Importing in Heroku Postgres
Exporting databases
Downloading the backup
Restoring to local database
Removing the add-on
Self-test Questions
Summary
5
Dataclips
Dataclips
Creating dataclips
Sharing dataclips
Interacting with dataclips
Dataclips security
Limitations and additional settings
Self-test questions
Summary
6
Rollback, Followers, and Forks
Rollback, Followers, and Forks
Heroku Postgres rollback
Heroku Postgres follower databases
Heroku Postgres forking databases
Self-test questions
Summary
7
Understanding Log Statements and Common Errors
Understanding Log Statements and Common Errors
Log statements
Common errors
Metrics logs
Self-test questions
Summary
8
Extensions, PostGIS, Full Text Search Dictionaries, Data Caching, and Tuning
Extensions, PostGIS, Full Text Search Dictionaries, Data Caching, and Tuning
Heroku Postgres extensions
Data types
Statistics
Languages
Full text search dictionaries
Data caching
Setting up PostGIS
Database tuning
Automatic vacuuming
Performance analysis
Self-test Questions
Summary
Keyword List
Keyword List
Self-test Answers
Self-test Answers
Chapter 1: Getting Started with Heroku Postgres
Chapter 2: Heroku Toolbelt
Chapter 3: Postgres Add-on
Chapter 4: PG Backups
Chapter 5: Dataclips
Chapter 6: Rollback, Followers, and Forks
Chapter 7: Understanding Log Statements and Common Errors
Chapter 8: Extensions, PostGIS, Full Text Search Dictionaries, Data Caching, and Tuning
Index
Index

Chapter 5: Dataclips

  1. Are dataclips queries of Postgres database on Heroku can be shared?

    Answer: TRUE

  2. Can dataclips be displayed in the browser?

    Answer: FALSE

  3. Is it possible to download a dataclip in XLS format?

    Answer: TRUE

  4. To create a dataclip, is it necessary to access the address https://dataclips.heroku.com?

    Answer: TRUE

  5. Are dataclips not recommended for API prototyping?

    Answer: FALSE

  6. Can you see the results in JSON format when adding .json in the dataclip URL?

    Answer: TRUE

  7. Are dataclips shared on Google Drive never updated?

    Answer: FALSE

  8. Can dataclips return an infinite set of lines?

    Answer: FALSE

  9. Can you switch a dataclip to another Postgres database at any time?

    Answer: TRUE

  10. Is Fork the preferred feature when you want to make a copy of a dataclip?

    Answer: TRUE

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