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+# QueryBuilder
+
+## Requirements
++ PHP 8+ (Should work with 7+, but haven't tested it).
++ `Psr\Container\ContainerInterface` implementation like [`php-di/php-di`](https://packagist.org/packages/php-di/php-di).
+
+## Installation
+
+```composer.json```
+```
+{
+    ...
+    "repositories": [
+        {
+            "type": "git",
+            "path": "https://git.provm.cl/ProVM/query_builder.git"
+        }
+    ],
+    "require": {
+        ...
+        "provm/query_builder": "^1.0",
+        ...
+    },
+    ...
+}
+```
+
+## Setup
+
+```
+$container->set(ProVM\Concept\Database\Query\Select::class, function(Psr\Container\ContainerInterface $container) {
+    return $container->get(ProVM\Database\Query\MySQL\Select::class);
+});
+$container->set(ProVM\Concept\Database\Query\Insert::class, function(Psr\Container\ContainerInterface $container) {
+    return $container->get(ProVM\Database\Query\MySQL\Insert::class);
+});
+$container->set(ProVM\Concept\Database\Query\Update::class, function(Psr\Container\ContainerInterface $container) {
+    return $container->get(ProVM\Database\Query\MySQL\Update::class);
+});
+$container->set(ProVM\Concept\Database\Query\Delete::class, function(Psr\Container\ContainerInterface $container) {
+    return $container->get(ProVM\Database\Query\MySQL\Delete::class);
+});
+```
+
+## Usage
+
+QueryBuilder
+```
+include_once 'vendor/autoload.php';
+$qb = new QueryBuilder();
+
+$query = $qb->select();
+$query = $qb->insert();
+$query = $qb->update();
+$query = $qb->delete();
+```
+
+### Queries
+
+Select
+```
+$query = $qb->select();
+$query = $qb->select(['id', 'column1']);
+
+$query = $query->from('table');
+$query = $query->joins([['table2', 'table1.column = table2.column']]);
+$query = $query->where([['table2.column2', 10]]);
+```