use Illuminate\Database\Eloquent\Builder; $users = DB::table('users') ->whereBetween('age', [18, 30]) ->get();
$table = 'users'; $schema = DB::getSchemaBuilder(); $columns = $schema->getColumnListing($table); foreach ($columns as $column) { $type = $schema->getColumnType($table, $column); $nullable = $schema->getColumnListing($table, $column); echo "{$column}: {$type} (Nullable? {$nullable})"; }The above code will generate a query that shows the structure of the users table. In conclusion, the `Illuminate\Database\Eloquent\Builder` class is a powerful tool for building complex database queries in Laravel applications. It provides a wide range of methods for querying and manipulating the database. The `whereBetween` and `describe` methods are just two examples of the many methods available in this class.