Which is better IQueryable or IEnumerable?
So if you working with only in-memory data collection IEnumerable is a good choice but if you want to query data collection which is connected with database `IQueryable is a better choice as it reduces network traffic and uses the power of SQL language.
Is IQueryable faster than IEnumerable?
IQueryable is faster than IEnumerable. In addition to Munesh Sharma’s answer:IEnumerable loads data in-memory and then apply filters to it one by one but IQueryable apply filters all at once and return the result.
What is the difference between returning IQueryable T vs IEnumerable T >?
In LINQ to query data from database and collections, we use IEnumerable and IQueryable for data manipulation. IEnumerable is inherited by IQueryable, Hence IQueryable has all the features of IEnumerable and except this, it has its own features. Both have its own importance to query data and data manipulation.
When should I use IQueryable?
IQueryable uses Expression objects that result in the query being executed only when the application requests an enumeration. Use IQueryable when you have to run ad-hoc queries against data source like LinQ to SQL Server,Entity framework and other sources which implement IQueryable.
Is IQueryable lazy loading?
Both IQueryable and IEnumerable support lazy loading of data from remote database servers.
Why we use IQueryable in LINQ?
IQueryable is suitable for querying data from out-memory (like remote database, service) collections. While querying data from a database, IQueryable executes a “select query” on server-side with all filters. IQueryable is beneficial for LINQ to SQL queries.
Is IEnumerable lazy loading?
IEnumerable doesn’t support lazy loading. IQueryable support lazy loading. Hence it is suitable for paging like scenarios.
Which is better LINQ or stored procedure?
Stored procedures are faster as compared to LINQ query since they have a predictable execution plan and can take the full advantage of SQL features. Hence, when a stored procedure is being executed next time, the database used the cached execution plan to execute that stored procedure.
What is difference between IQueryable and list in C#?
List is just an output format, and while it implements IEnumerable , is not directly related to querying. In other words, when you’re using IQueryable , you’re defining an expression that gets translated into something else.
Is LINQ lazy loading?
What is Lazy Loading? Lazy Loading means the related entities are not loaded, until we iterate through them or bind them the data. By default, LINQ to SQL loads the related entities, using Lazy Loading. There is one-to-many relationship between Department and Employees entities.
Does IQueryable support lazy loading?
What is IQueryable used for?