下一次我们会来分析关闭Lazy Loading的情况下,如何显示加载相关实体,即Explicit Loading。 上一回我们在《Entity Framework加载相关实体——Lazy Loading》分析了Lazy Loading,这一回我们来分析一下在关闭Lazy Loading的情况下,如果显式加载实体。 数据库我们依旧使用Lazy Loading中使用的数据库。之前我们分析过来,当Lazy ...
Lazy loading 中又使用Eager loading 如果在启用Lazy loading后又使用了Include方法来使用Eager loading,那么实际上是Eager loading在起作用,这样EF Core实体的导航属性不会再单独开启数据库连接去数据库查询数据,而是用sql语句的join预先在数据库中查询数据: 假设我们现在有Person实体里面有个Book导航属性,返回ICollection<...
Lesser database queries:Unlike the lazy loading strategy, eager loading involves fewer database queries. Because all resources are loaded at once, the client does not repeatedly have to query the backend to load other parts of the page Simplified code:Unlike lazy loading, eager loading avoids the...
Lazy Loading vs. Eager Loading While lazy loading delays the initialization of a resource, eager loading initializes or loads a resource as soon as the code is executed. Eager loading also involves pre-loading related entities referenced by a resource. For example, a PHP script with an include...
看来大家还对ActiveRecord的lazy loading和eager loading不是很清楚 ActiveRecord默认是lazy loading的,而加上:include选项后可以指定eager loading一些字段 :include - specify second-order associations that should be eager loaded when the collection is loaded. ...
In the context of .NET Core, understanding the differences between eager loading and lazy loading is essential for optimizing data access and improving overall application performance. What is Eager Loading? Eager loading is a technique used to retrieve related or associated data in a single query ...
.UseEagerLoadingwhen you are sure that you will beusingrelated entitieswiththe main entity everywhere.LazyLoading:Incaseoflazy loading, relatedobjects(child objects) are not loaded automaticallywithits parentobjectuntil they are requested.BydefaultLINQsupports lazy loading.Whentouse:UseLazyLoadingwhen you...
Eager Loading:Increases initial load time due to loading all modules upfront. Provides immediate availability but may result in longer startup times. Lazy Loading:Optimizes initial load time by loading modules only when required. Enhances performance and resource management, especially in larger applica...
Lazy Loading vs. Eager Loading One of the most common (and basic) scenarios that shows lazy loading in action is found on a modern web page. If the page contains images that are not visible on the starting viewport,these are probably lazy-loaders, which means that initialization is delayed...
Difference between Lazy loading vs Eager loading Lazy loading is great for optimizing performance by loading resources on demand, while eager loading ensures that everything is ready upfront, though at the cost of slower initial load times and higher resource consumption. ...