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Records: SQL for Humans™

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.. image::☼-1EAEDB.svg :target:

Records is a very simple, but powerful, library for making raw SQL queries to most relational databases.

.. image::

Just write SQL. No bells, no whistles. This common task can be surprisingly difficult with the standard tools available. This library strives to make this workflow as simple as possible, while providing an elegant interface to work with your query results.

Database support includes RedShift, Postgres, MySQL, SQLite, Oracle, and MS-SQL (drivers not included).

☤ The Basics

We know how to write SQL, so let's send some to our database:

.. code:: python

import records

db = records.Database('postgres://...') rows = db.query('select * from active_users') # or db.query_file('sqls/active-users.sql')

Grab one row at a time:

.. code:: python

>>> rows[0]

Or iterate over them:

.. code:: python

for r in rows:
    print(, r.user_email)

Values can be accessed many ways:

, or

Fields with non-alphanumeric characters (like spaces) are also fully supported.

Or store a copy of your record collection for later reference:

.. code:: python

>>> rows.all()
[, , , ...]

If you're only expecting one result:

.. code:: python

>>> rows.first()

Other options include


☤ Features

  • Iterated rows are cached for future reference.
    environment variable support.
  • Convenience
  • Command-line
    tool for exporting queries.
  • Safe parameterization:
    Database.query('life=:everything', everything=42)
  • Queries can be passed as strings or filenames, parameters supported.
  • Transactions:
    t = Database.transaction(); t.commit()
  • Bulk actions:

Records is proudly powered by

_ and

☤ Data Export Functionality

Records also features full Tablib integration, and allows you to export your results to CSV, XLS, JSON, HTML Tables, YAML, or Pandas DataFrames with a single line of code. Excellent for sharing data with friends, or generating reports.

.. code:: pycon

>>> print(rows.dataset)
username|active|name      |user_email       |timezone
model-t |True  |Henry Ford|[email protected]|2016-02-06 22:28:23.894202

Comma Separated Values (CSV)

.. code:: pycon

>>> print(rows.export('csv'))
model-t,True,Henry Ford,[email protected],2016-02-06 22:28:23.894202

YAML Ain't Markup Language (YAML)

.. code:: python

>>> print(rows.export('yaml'))
- {active: true, name: Henry Ford, timezone: '2016-02-06 22:28:23.894202', user_email: [email protected], username: model-t}

JavaScript Object Notation (JSON)

.. code:: python

>>> print(rows.export('json'))
[{"username": "model-t", "active": true, "name": "Henry Ford", "user_email": "[email protected]", "timezone": "2016-02-06 22:28:23.894202"}, ...]

Microsoft Excel (xls, xlsx)

.. code:: python

with open('report.xls', 'wb') as f:

Pandas DataFrame

.. code:: python

>>> rows.export('df')
    username  active       name        user_email                   timezone
0    model-t    True Henry Ford [email protected] 2016-02-06 22:28:23.894202

You get the point. All other features of Tablib are also available, so you can sort results, add/remove columns/rows, remove duplicates, transpose the table, add separators, slice data by column, and more.

See the

Tablib Documentation 
_ for more details.

☤ Installation

Of course, the recommended installation method is

$ pipenv install records[pandas]

☤ Command-Line Tool

As an added bonus, a

command-line tool is automatically included. Here's a screenshot of the usage information:

.. image:: :alt: Screenshot of Records Command-Line Interface.

☤ Thank You

Thanks for checking this library out! I hope you find it useful.

Of course, there's always room for improvement. Feel free to

open an issue 
_ so we can make Records better, stronger, faster.

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