https://github.com/alex/csv-sql

Query your CSV files with SQL
https://github.com/alex/csv-sql

Last synced: 15 days ago
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Query your CSV files with SQL

• Host: GitHub
• URL: https://github.com/alex/csv-sql
• Owner: alex
• License: bsd-3-clause
• Created: 2016-07-09T02:38:22.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2024-09-13T17:36:03.000Z (about 2 months ago)
• Last Synced: 2024-09-14T11:44:34.626Z (about 2 months ago)
• Language: Rust
• Size: 1.59 MB
• Stars: 201
• Watchers: 10
• Forks: 19
• Open Issues: 1
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE

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README

        
CSV SQL

=======

Take a CSV file, query it with SQL. Magic!

.. code-block:: console

    $ cargo run file.csv

    Loaded 3162 rows into t(domain, base_domain, agency, sslv2)

    > SELECT COUNT(*) FROM t

    +----------+

    | 3162     |

    +----------+

All your rows go into a table named ``t``. It's great!

You can also specify multiple files:

.. code-block:: console

    $ cargo run file1.csv file2.csv

    Loaded 12 rows into t1(some, schema)

    Loaded 74 rows into t2(some, other, schema)

    >

If you'd like to export the results of a query to a CSV file:

.. code-block:: console

    $ cargo run file.csv

    Loaded 3162 rows into t(domain, base_domain, agency, sslv2)

    > .export(results.csv) SELECT COUNT(*) from t;

If you have tab-, pipe-, or semicolon-delimited files you can specify `--tab`,

`--pipe`, or `--semicolon` respectively).

You can change the output style to be "vertical" instead of "table" with:

.. code-block:: console

    $ cargo run file.csv

    Loaded 3162 rows into t(domain, base_domain, agency, sslv2)

    > .style(table)

    > -- Or

    > .style(vertical)

UDFs

----

``csv-sql`` contains additional UDFs (User Defined Functions) to enable easier

data analysis. They are:

`regexp_extract(pattern, value, replacement)`

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Example: ``regexp_extract("abc-(\d+)", "abc-12345", "lol $1")`` returns ``"lol 12345"``

Binaries

--------

Binaries for macOS and Windows are automatically built in CI and can be

downloaded from Github Actions.