Here are the key differences between IEnumerable and IQueryable in C#:
Execution of Queries
IEnumerable: Queries are executed on the client-side, meaning the entire data set is retrieved from the data source and processed in memory.
IQueryable: Queries are executed on the server-side, allowing the data source to handle the query processing and return only the necessary data.
Deferred Execution
IEnumerable: Queries are executed when the result is accessed (e.g., when iterating over the collection using a foreach loop).
IQueryable: Queries are executed when the result is accessed, but the query is translated into a data source-specific query language (e.g., SQL for a database).
Filtering and Projection
IEnumerable: Filtering and projection operations are performed on the client-side using LINQ methods like Where(), Select(), etc.
IQueryable: Filtering and projection operations are translated into data source-specific query language and executed on the server-side.
Lazy Loading
IEnumerable: Data is loaded eagerly, meaning the entire data set is retrieved fro...
