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#Postgres sequel how to#
#Postgres sequel install#
#Postgres sequel manual#
#Postgres sequel password#

That’s it! I hope that helps someone else - it’ll certainly help me when I need to do another import of a sqlite3 database to postgres in the future. Psql -h localhost -U dbuser -d yourdatabasename

# log in from your shell to make sure it worked Sequels core database and dataset functions are designed to support the features shared by most common SQL database implementations. GRANT ALL PRIVILEGES ON DATABASE "yourdatabasename" to dbuser ĪLTER DATABASE fotoportal owner to fportal # Ctrl-d to exit your database shell

#Postgres sequel password#

Psql # enter your database shell # run these SQL statements in your database shellĬREATE USER dbuser WITH PASSWORD 'thisisyourpassword' # create the actual database you'll be importing your sqlite3 database into Queries that access multiple tables (or multiple instances of the same table) at one time are called. Queries can access multiple tables at once, or access the same table in such a way that multiple rows of the table are being processed at the same time. Su - postgres # (the user is called pgsql on FreeBSD) Thus far, our queries have only accessed one table at a time.

#Postgres sequel how to#

I’ve referenced setting up a Postgres user several times here’s a quick cheatsheet on how to do this. Once you create your postgres (destination) database with createdb yourdatabasename, importing from a sqlite3 database file is as simple as running: sequel -C sqlite:///path/to/live/db/yourdatabasename.db postgres://localhost/yourdatabasename

#Postgres sequel install#

Then, just do a gem install sequel pg sqlite3 However, these instructions should work with both Linux and FreeBSD (they’re a tiny bit vague because package names will be different between different operating systems).īasically, you’ll need ruby and rubygems installed, along with postgres, the postgres-dev libraries for your postgres version, and the sqlite3-dev libraries on your OS. In this case, I was flabbergasted when I experienced how much easier it is to work with Ruby on FreeBSD (the target system) than Debian Linux (the server we were migrating the database away from). If you’ve got Ruby installed, or are comfortable setting up a Ruby environment, I suggest going that route. PGloader seems like a good tool, but I ended up using a ruby tool called sequel. There are plenty of tools out there to help you. If you’ve got a lot of tables and columns with many different datatypes, it’s easier to use a third-party migration tool

Import the dump file into Postgres ( psql -dyourdatabasename -U username -W < your.db.bak ) (will prompt for username‘s password)ģ.

Create your postgres database from a shell on your database system ( createdb yourdatabasename ).

In case the CSV file contains all columns of the table, you don’t need to specify them explicitly, for example: COPY sampletablename FROM 'C:\sampledb\sampledata. The order of the columns must be the same as the ones in the CSV file.

Edit the dump file as a text file, replacing column types as needed (see point #1 above) First, you specify the table with column names after the COPY keyword.

In the good old MySQL world, my favorite client is Sequel Pro, but its.

Create an uncompressed database dump file from sqlite3 ( sqlite3 your.db. However, they are either web-based, Java-based or dont support the features I want.

Things like sed or find/replace in your text editor are fine here. It has also fostered a strong community that strives to keep it on the cutting edge of design and functionality. It is an open-source, relational database that offers security and an impressive feature set. To migrate manually, you can use whichever tools you like for find/replace work. What Is PostgreSQL PostgreSQL is quickly becoming one of the most popular databases.

#Postgres sequel manual#

Manual migration is tedious, but not complicated Datetime fields will probably need to be saved as timestamp fields in Postgres.Ģ. The text type in Postgres is fantastic use it.

Things like datetime fields, text fields, and a few others, will need to be converted to valid Postgres types. sqlite3 field types need to be adapted before they can work with Postgres Sequel.I spent some time migrating an application from sqlite3 to Postgres today, and wanted to write down a few notes for next time. I'm running a rake task as such: require 'rubygems' I've read all sequel's docs, but I could not find a way to create a database, assuming that I can do that.