# Queries

#### Grouping query conditions + Using SQL LIKE operator

```php

// We use orConditionGroup() to groupe multiple Conditions
// We use escapeLike() to use the LIKE operator

Database::setActiveConnection('external');
$db = Database::getConnection();

$query = $db->select('TABLEPREFIX.TABLE_NAME', 'ALIAS');
$query->fields('ALIAS', ['FIELDS']);
 $group = $query->orConditionGroup()
            ->condition('FIELD_NAME', "%" . $db->escapeLike($palabra_clave) . "%", 'LIKE')
            ->condition('FIELD_NAME', "%" . $db->escapeLike($palabra_clave) . "%", 'LIKE');
$query->condition($group);
$results = $pager->execute()->fetchAll();
Database::setActiveConnection();
```

### Query Pagination

#### **Using PagerSelectExtender**

```php

// We use PagerSelectExtender to limit the what we get on our page
// $pager should be passed later to the twig file as a variable

use Drupal\Core\Database\Query\PagerSelectExtender;

Database::setActiveConnection('external');
$db = Database::getConnection();

$query = $db->select('TABLEPREFIX.TABLE_NAME', 'ALIAS');
$query->fields('ALIAS', ['FIELDS']);
 $group = $query->orConditionGroup()
            ->condition('FIELD_NAME', "%" . $db->escapeLike($palabra_clave) . "%", 'LIKE')
            ->condition('FIELD_NAME', "%" . $db->escapeLike($palabra_clave) . "%", 'LIKE');
$query->condition($group);
$pager = $query->extend(PagerSelectExtender::class)->limit(5);
$results = $pager->execute()->fetchAll();
Database::setActiveConnection();
```

### Stored Procedures

#### Execute a Stored Procedure

```php

// Executing the query --> RETURNS A BOOLEAN
$results = Database::getConnection()->query("EXEC SCHEMA.SP_SP_NAME", $options)->execute();

```

#### Execute a Stored Procedure and get data as a return

{% tabs %}
{% tab title="Controller or Class File" %}

```php
  // We don't use execute(), we directly run fetchAssoc() to get an associative array or fetchObject() to get a an object
  $sp = Database::getConnection()->query("EXECUTE DRU.SP_NAME", $options)->fetchAssoc();

  // OR
  // $sp = Database::getConnection()->query("EXECUTE DRU.SP_NAME", $options)->fetchObject();

  return [
    '#sp' => $sp,
  ]
```

{% endtab %}

{% tab title="Twig File" %}

```php
// The data is passed from the controller to the twig file via the render array
// Since it's an associative array, we need the key and value
{% for key,value in sp %}
    Key :
    {{ key }}
    Value :
    {{ value }}
{% endfor %}

```

{% endtab %}

{% tab title="MODULE.module" %}

```php
function module_theme(){
    return [
    'variables' => [
      '#sp' => $sp,
    ],
  ];
}
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://drupal.bermaki.com/drupal-documentation-and-guides/backend/queries.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.