The ORM usually expects a transaction to be present and provided, but if None is specified, a new transaction will be created for that request. The two main ways of retrieving data through the ORM are ...

converting code you write that works with collections into appropriate SQL statements. provide classes in the language you're using that allow you to represent rows in a database as instances of a ...

プログラミング初学者が学ぶことの多いLaravelやRuby on Railsなどのフレームワークですが、自然とORM（Object-Relational Mapping）を使うことになります。 ORMがあればSQLを学ばなくても問題ないのでは？と思ったり、そもそもSQLとORMの違いや関係性も意識せずに使って ...