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ActiveLibrary[Database &amp; ORM](/categories/database)

nette/database
==============

💾 Nette Database: layer with a familiar PDO-like API but much more powerful. Building queries, advanced joins, drivers for MySQL, PostgreSQL, SQLite, MS SQL Server and Oracle.

v3.2.9(2mo ago)5687.0M↓59.3%114[62 issues](https://github.com/nette/database/issues)[22 PRs](https://github.com/nette/database/pulls)20BSD-3-ClausePHPPHP 8.1 - 8.5CI failing

Since May 11Pushed 3w ago34 watchersCompare

[ Source](https://github.com/nette/database)[ Packagist](https://packagist.org/packages/nette/database)[ Docs](https://nette.org)[ RSS](/packages/nette-database/feed)WikiDiscussions master Synced 2d ago

READMEChangelog (10)Dependencies (18)Versions (66)Used By (20)

[![Nette Database](https://private-user-images.githubusercontent.com/194960/331215311-97d8f31b-096c-466c-a76f-f5b9e511ea8d.jpg?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3ODI5MTE1NzAsIm5iZiI6MTc4MjkxMTI3MCwicGF0aCI6Ii8xOTQ5NjAvMzMxMjE1MzExLTk3ZDhmMzFiLTA5NmMtNDY2Yy1hNzZmLWY1YjllNTExZWE4ZC5qcGc_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjYwNzAxJTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI2MDcwMVQxMzA3NTBaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT0xYzBkNmYyMGQwMmRlYTEzOTQ1NzZiNjkzYzBlN2E5OTFlYmMxODllOTUyMjU4NWJhZWRiNmZhMzFlMTEzNzQ1JlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCZyZXNwb25zZS1jb250ZW50LXR5cGU9aW1hZ2UlMkZqcGVnIn0.0Z92KBR7Q0ZmQ6JK1FuTM2whYs8iBklPB8_9GGiEsIU)](https://doc.nette.org/database)

[![Downloads this Month](https://camo.githubusercontent.com/b0855f7b929181d1fe401447c027886344ccf9514ae970d9486e935e6c0213a2/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f646d2f6e657474652f64617461626173652e737667)](https://packagist.org/packages/nette/database)[![Tests](https://github.com/nette/database/actions/workflows/tests.yml/badge.svg?branch=master)](https://github.com/nette/database/actions)[![Latest Stable Version](https://camo.githubusercontent.com/6630fe316d170670093d66582bf9caca012d9e9ebf56ae75a67cc8459ec17ffd/68747470733a2f2f706f7365722e707567782e6f72672f6e657474652f64617461626173652f762f737461626c65)](https://github.com/nette/database/releases)[![License](https://camo.githubusercontent.com/fa7d5fcf2c84b580327af52da95dd751703af65f079dc3c5a0081beac0789718/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f6c6963656e73652d4e65772532304253442d626c75652e737667)](https://github.com/nette/database/blob/master/license.md)

Introduction
------------

[](#introduction)

Nette provides a powerful layer for accessing your database easily.

✅ composes SQL queries with ease
✅ significantly simplifies retrieving data without writing SQL queries
✅ uses efficient queries and does not transmit unnecessary data

The [Nette Database Core](https://doc.nette.org/en/database/core) is a wrapper around the PDO and provides core functionality.

The [Nette Database Explorer](https://doc.nette.org/en/database/explorer) layer helps you to fetch database data more easily and in a more optimized way.

[Support Me](https://github.com/sponsors/dg)
--------------------------------------------

[](#support-me)

Do you like Nette Database? Are you looking forward to the new features?

[![Buy me a coffee](https://camo.githubusercontent.com/afa7c20ccaac10ac4f1f51669bafb212856b932e0c8b276cb290336cf08624b8/68747470733a2f2f66696c65732e6e657474652e6f72672f69636f6e732f646f6e6174696f6e2d332e737667)](https://github.com/sponsors/dg)

Thank you!

Installation
------------

[](#installation)

The recommended way to install is via Composer:

```
composer require nette/database

```

It requires PHP version 8.3 and supports PHP up to 8.5.

Running Tests
-------------

[](#running-tests)

Run tests against SQLite (no setup needed):

```
composer run tester

```

To test against MySQL, PostgreSQL, etc., start the Docker containers and copy the configuration:

```
docker compose up -d
cp tests/databases.docker.ini tests/Database/databases.ini
composer run tester

```

Usage
-----

[](#usage)

This is just a piece of documentation. [Please see our website](https://doc.nette.org/database).

Database Core
-------------

[](#database-core)

To create a new database connection just create a new instance of `Nette\Database\Connection` class:

```
$database = new Nette\Database\Explorer($dsn, $user, $password); // the same arguments as uses PDO
```

Connection allows you to easily query your database by calling `query` method:

```
$database->query('INSERT INTO users', [ // an array can be a parameter
	'name' => 'Jim',
	'created' => new DateTime, // or a DateTime object
	'avatar' => fopen('image.gif', 'r'), // or a file
], ...); // it is even possible to use multiple inserts

$database->query('UPDATE users SET ? WHERE id=?', $data, $id);
$database->query('SELECT * FROM categories WHERE id=?', 123)->dump();
```

Database Explorer
-----------------

[](#database-explorer)

Nette Database Explorer layer helps you to fetch database data more easily and in a more optimized way. The primary attitude is to fetch data only from one table and fetch them at once. The data are fetched into `ActiveRow` instances. Data from other tables connected by relationships are delivered by another queries - this is maintained by Database Explorer layer itself.

Let's take a look at common use-case. You need to fetch books and their authors. It is common 1:N relationship. The often used implementation fetches data by one SQL query with table joins. The second possibility is to fetch data separately, run one query for getting books and then get an author for each book by another query (e.g. in your foreach cycle). This could be easily optimized to run only two queries, one for books, and another for the needed authors - and this is just the way how Nette Database Explorer does it.

Selecting data starts with the table, just call `$explorer->table()` on the `Nette\Database\Explorer` object. The easiest way to get it is [described here](https://doc.nette.org/database-core#toc-configuration), but if we use Nette Database Explorer alone, it can be [manually created](https://doc.nette.org/database-explorer#toc-manual-creating-nette-database-context).

```
$selection = $explorer->table('book'); // db table name is "book"
```

We can simply iterate over the selection and pass through all the books. The rows are fetched as ActiveRow instances; you can read row data from their properties.

```
$books = $explorer->table('book');
foreach ($books as $book) {
	echo $book->title;
	echo $book->author_id;
}
```

Getting just one specific row is done by `get()` method, which directly returns an ActiveRow instance.

```
$book = $explorer->table('book')->get(2); // returns book with id 2
echo $book->title;
echo $book->author_id;
```

Working with relationships
--------------------------

[](#working-with-relationships)

```
$books = $explorer->table('book');

foreach ($books as $book) {
	echo 'title:      ' . $book->title;
	echo 'written by: ' . $book->author->name;

	echo 'tags: ';
	foreach ($book->related('book_tag') as $bookTag) {
		echo $bookTag->tag->name . ', ';
	}
}
```

You will be pleased how efficiently the database layer works. The example above performs constant number of queries, see following 4 queries:

```
SELECT * FROM `book`
SELECT * FROM `author` WHERE (`author`.`id` IN (11, 12))
SELECT * FROM `book_tag` WHERE (`book_tag`.`book_id` IN (1, 4, 2, 3))
SELECT * FROM `tag` WHERE (`tag`.`id` IN (21, 22, 23))
```

If you use caching (defaults on), no columns will be queried unnecessarily. After the first query, cache will store the used column names and Nette Database Explorer will run queries only with the needed columns:

```
SELECT `id`, `title`, `author_id` FROM `book`
SELECT `id`, `name` FROM `author` WHERE (`author`.`id` IN (11, 12))
SELECT `book_id`, `tag_id` FROM `book_tag` WHERE (`book_tag`.`book_id` IN (1, 4, 2, 3))
SELECT `id`, `name` FROM `tag` WHERE (`tag`.`id` IN (21, 22, 23))
```

[Continue…](https://doc.nette.org/database-explorer).

###  Health Score

79

—

ExcellentBetter than 100% of packages

Maintenance89

Actively maintained with recent releases

Popularity67

Solid adoption and visibility

Community53

Growing community involvement

Maturity95

Battle-tested with a long release history

 Bus Factor1

Top contributor holds 66.1% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~70 days

Recently: every ~98 days

Total

64

Last Release

4d ago

Major Versions

v2.4.9 → v3.0.52019-12-13

v2.4.10 → v3.0.72020-10-30

v2.4.11 → v3.1.02020-12-21

v2.4.12 → v3.1.62022-11-18

v3.2.4 → v4.0.0-RC12024-08-29

PHP version history (12 changes)v2.2.0PHP &gt;=5.3.1

v2.4.0PHP &gt;=5.6.0

v3.0.0PHP &gt;=7.1

v2.4.11PHP &gt;=5.6 &lt;8.1

v3.1.0PHP &gt;=7.2 &lt;8.1

v3.1.4PHP &gt;=7.2 &lt;8.2

v3.1.6PHP &gt;=7.2 &lt;8.3

v3.1.9PHP 7.2 - 8.3

v3.2.0PHP 8.1 - 8.3

v3.2.4PHP 8.1 - 8.4

v3.2.8PHP 8.1 - 8.5

v3.3.x-devPHP 8.3 - 8.5

### Community

Maintainers

![](https://www.gravatar.com/avatar/17f266513a3ca97500ec3d85d562b9279c7a6346358fe2b8d90390ece717a027?d=identicon)[david@grudl.com](/maintainers/david@grudl.com)

---

Top Contributors

[![dg](https://avatars.githubusercontent.com/u/194960?v=4)](https://github.com/dg "dg (778 commits)")[![hrach](https://avatars.githubusercontent.com/u/284263?v=4)](https://github.com/hrach "hrach (259 commits)")[![milo](https://avatars.githubusercontent.com/u/439140?v=4)](https://github.com/milo "milo (34 commits)")[![norbe](https://avatars.githubusercontent.com/u/194486?v=4)](https://github.com/norbe "norbe (16 commits)")[![foxycode](https://avatars.githubusercontent.com/u/1284781?v=4)](https://github.com/foxycode "foxycode (9 commits)")[![Unlink](https://avatars.githubusercontent.com/u/9026197?v=4)](https://github.com/Unlink "Unlink (9 commits)")[![vrana](https://avatars.githubusercontent.com/u/117453?v=4)](https://github.com/vrana "vrana (7 commits)")[![adaamz](https://avatars.githubusercontent.com/u/4347332?v=4)](https://github.com/adaamz "adaamz (6 commits)")[![enumag](https://avatars.githubusercontent.com/u/539462?v=4)](https://github.com/enumag "enumag (6 commits)")[![EdaCZ](https://avatars.githubusercontent.com/u/1671637?v=4)](https://github.com/EdaCZ "EdaCZ (5 commits)")[![fabik](https://avatars.githubusercontent.com/u/816866?v=4)](https://github.com/fabik "fabik (4 commits)")[![insekticid](https://avatars.githubusercontent.com/u/177340?v=4)](https://github.com/insekticid "insekticid (4 commits)")[![mishak87](https://avatars.githubusercontent.com/u/276500?v=4)](https://github.com/mishak87 "mishak87 (3 commits)")[![JanTvrdik](https://avatars.githubusercontent.com/u/175109?v=4)](https://github.com/JanTvrdik "JanTvrdik (3 commits)")[![h4kuna](https://avatars.githubusercontent.com/u/335722?v=4)](https://github.com/h4kuna "h4kuna (3 commits)")[![juzna](https://avatars.githubusercontent.com/u/227416?v=4)](https://github.com/juzna "juzna (3 commits)")[![KminekMatej](https://avatars.githubusercontent.com/u/16462921?v=4)](https://github.com/KminekMatej "KminekMatej (3 commits)")[![paranoiq](https://avatars.githubusercontent.com/u/146912?v=4)](https://github.com/paranoiq "paranoiq (3 commits)")[![fprochazka](https://avatars.githubusercontent.com/u/158625?v=4)](https://github.com/fprochazka "fprochazka (2 commits)")[![JosefDohnal](https://avatars.githubusercontent.com/u/6528948?v=4)](https://github.com/JosefDohnal "JosefDohnal (2 commits)")

---

Tags

database-layernettenette-frameworkormpdophpsql-querynettedatabasemysqlsqlitepostgresqlpdomssqloraclequeriesnotorm

###  Code Quality

Static AnalysisPHPStan

Type Coverage Yes

### Embed Badge

![Health badge](/badges/nette-database/health.svg)

```
[![Health](https://phpackages.com/badges/nette-database/health.svg)](https://phpackages.com/packages/nette-database)
```

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