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Postgres Database Connection Issues (SSL off) Having issues connecting to your database and you keep seeing messages regarding `ssl` in the logs similar to: ``` error: no pg_hba.conf entry for host "XX.XXX.XXX.XX", user "userfoo", database "dbfoo", SSL off ```
Why did a Heroku PGBackup fail with "Could not connect to database to initialize transfer"? When using Heroku PGBackups (ref: https://devcenter.heroku.com/articles/heroku-postgres-backups) to backup or copy across a database, you receive the error message "Could not connect to database to initialize transfer".
Ruby build fails with "Your Ruby version is X, but your Gemfile specified Y" When deploying your Ruby application to Heroku, the build fails with the following message: ``` Your Ruby version is X, but your Gemfile specified Y ``` E.g., The following build output implies the local environment is using Ruby 2.3.1, but the `Gemfile` has been changed to use Ruby 2.3.3: ``` Counting objects: 594, done. Delta compression using up to 8 threads. Compressing objects: 100% (530/530), done. Writing objects: 100% (594/594), 3.07 MiB | 840.00 KiB/s, done. Total 594 (delta 251), reused 0 (delta 0) remote: Compressing source files... done. remote: Building source: remote: remote: -----> Ruby app detected remote: -----> Compiling Ruby/Rails remote: -----> Using Ruby version: ruby-2.3.1 remote: -----> Installing dependencies using bundler 1.13.6 remote: Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment remote: Your Ruby version is 2.3.1, but your Gemfile specified 2.3.3 remote: Bundler Output: Your Ruby version is 2.3.1, but your Gemfile specified 2.3.3 remote: ! remote: ! Failed to install gems via Bundler. remote: ! remote: ! Push rejected, failed to compile Ruby app. remote: remote: ! Push failed remote: Verifying deploy... ```
Why do I get error "Failed to destroy your database Yikes! The database was not destroyed due to an internal error" when trying to destroy the database? Receiving error when trying to destroy Heroku Postgres database: ``` Failed to destroy your database Yikes! The database was not destroyed due to an internal error. ```
Why am I seeing `SSL error: tlsv1 alert protocol version (PG::Error)` when connecting to my Heroku Postgres database? I'm suddenly seeing database connection errors such as `could not retrieve server_version: tlsv1 alert protocol version` or `SSL error: tlsv1 alert protocol version (PG::Error)`.
Connecting To a Private Tier Postgres Database From Outside of the Private Space You have chosen to use a database inside of a Private Space for increased security purposes, but also need to connect to this database from outside of your Heroku Private Space. With the release of Heroku PrivateLink, there are now two methods for doing so. This article will help you decide which one is right for you.
Copy database to review app I'd like to copy a staging/production database to my review apps on creation.
Why can't I use third-party tools to replicate my Heroku Postgres database to a non-Heroku database? You are attempting to use a third-party tool, such as Amazon DMS, to replicate your Heroku Postgres database to another, non-Heroku database.
Heroku Key-Value Store Connection Issues Your app is no longer connecting to your Key-Value Store and you are seeing errors relating to self-signed certificates. Eg: `<OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=error: certificate verify failed (self signed certificate in certificate chain)> SSL_connect returned=1 errno=0 state=error: certificate verify failed (self signed certificate in certificate chain)`
Why can't my Java Spring app cannot connect to my database? Your Spring application generates a `java.net.ConnectException: Connection refused` or similar error when attempting to make the first connection to your database, even though your JDBC URL is configured correctly in your `application.properties` or other configuration file.

Dev Center articles 3

Connecting to a Private or Shield Heroku Postgres Database from an External Resource This article describes the steps involved in enabling Mutual TLS on your Private or Shield Postgres database.
PopSQL PopSQL is a modern SQL editor for teams. It’s the easiest way for your team to write SQL, share results, and visualize data.
Hello Query Hello Query is an add-on that allows you to build reports from your database using AI.

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