Eloquent Global Scopes in Laravel allow global filtering or modification of queries without manual application. They can be thought of as filters that attach themselves to a model, enforcing rules across all database interactions. By adding a $globalScopes property to your model's constructor, you can automatically apply these scopes to every query.
Laravel's DB::raw expression allows injecting raw SQL code into queries for complex calculations, joins, and aggregations, making it a powerful tool for unlocking a database's full potential. This can be used to avoid complex joins and relationships, use database-specific features, and optimize performance-critical queries.
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