For non-entity-returning stored procedures, Entity Framework utilizes the ________ method.
- ExecuteFunction
- ExecuteNonQuery
- ExecuteResultSet
- ExecuteScalar
Entity Framework utilizes the ExecuteFunction method for non-entity-returning stored procedures. This method is used to execute stored procedures that don't return entities but may perform other operations like data manipulation or retrieval. ExecuteNonQuery is generally used for executing SQL commands that don't return any data, ExecuteScalar is used when the stored procedure returns a single value, and ExecuteResultSet is used for procedures returning entity data.
To map a function to a complex type, define a ________ in the Entity Framework model.
- ComplexType
- DbSet
- EntityType
- FunctionImport
In Entity Framework, to map a function to a complex type, you need to define a ComplexType in the model. Complex types represent types in the conceptual model that do not have keys and are not mapped to tables in the database. FunctionImport is used to import stored procedures and user-defined functions into the conceptual model, DbSet is a property that represents a table in the database, and EntityType represents an entity type in the conceptual model.
In a scenario where a stored procedure modifies the database state, Entity Framework uses ________ to track changes.
- Change Detection
- Change Tracking
- Data Annotations
- Transaction Handling
Entity Framework employs Change Detection to monitor changes made by stored procedures in the database. When a stored procedure modifies the database state, Entity Framework automatically detects these changes to ensure consistency between the application's data model and the database. Change Tracking refers to tracking changes made to entities within the application. Transaction Handling deals with managing database transactions, and Data Annotations are used for defining metadata about entity properties.
To handle multiple result sets from a stored procedure, ________ is a common approach in Entity Framework.
- Complex Types
- Entity Splitting
- Lazy Loading
- Multiple Result Sets
Entity Framework commonly utilizes Multiple Result Sets to handle scenarios where a stored procedure returns more than one result set. This approach allows Entity Framework to map each result set to appropriate entities or complex types, enabling efficient processing of data returned by the stored procedure. Entity Splitting refers to mapping a single table to multiple entities, Complex Types are used to represent structured data, and Lazy Loading is a technique for deferred loading of related entities.
When integrating user-defined functions in SQL Server with Entity Framework, use the ________ attribute in your code.
- DbFunction
- Function Import
- Function Mapping
- User-Defined Function Mapping
When integrating user-defined functions (UDFs) in SQL Server with Entity Framework, it's essential to use the DbFunction attribute in your code. This attribute allows Entity Framework to map .NET methods to SQL functions, enabling seamless integration and invocation of user-defined functions within LINQ queries or method calls. Function Mapping typically refers to mapping database functions to conceptual model functions, Function Import is used for importing stored procedures and user-defined functions, and User-Defined Function Mapping is not a standard term in Entity Framework.
How does Entity Framework integrate with complex database functions that involve multiple tables and complex logic?
- It directly invokes stored procedures for complex logic
- It generates raw SQL queries for complex logic
- It relies on entity navigation properties to traverse relationships and retrieve related data from multiple tables
- It utilizes LINQ queries to represent complex logic
Entity Framework integrates with complex database functions by leveraging entity navigation properties to traverse relationships and retrieve related data from multiple tables, simplifying complex logic.
To execute a stored procedure that returns a set of entities, use the ________ method in Entity Framework.
- ExecuteFunction
- ExecuteNonQuery
- ExecuteResultSet
- ExecuteSqlCommand
In Entity Framework, to execute a stored procedure that returns a set of entities, the appropriate method to use is ExecuteResultSet. This method is specifically designed for executing stored procedures that return entity data. ExecuteSqlCommand is used for executing SQL commands directly, ExecuteFunction is used for non-entity-returning stored procedures, and ExecuteNonQuery is typically used for executing SQL commands that don't return any data.
Describe how you would integrate a stored procedure for bulk data operations in an Entity Framework application.
- Define a complex SQL query within the application code
- Map the stored procedure to an entity model using the DbContext's OnModelCreating() method
- Use Entity Framework's FromSqlRaw() method to execute the stored procedure
- Use the DbContext's Database.ExecuteSqlCommand() method to execute the stored procedure
In Entity Framework, integrating a stored procedure for bulk data operations involves mapping the stored procedure to an entity model. This can be achieved by defining the mapping in the DbContext class's OnModelCreating() method. This mapping enables Entity Framework to understand how to interact with the stored procedure and treat it as part of the entity model.
In a case where a complex business logic is implemented in a SQL function, how would you call this function from Entity Framework?
- Execute the SQL function directly using Entity Framework's Database.SqlQuery() method
- Map the SQL function to an entity model using the DbContext's OnModelCreating() method
- Use LINQ queries to replicate the business logic in C# code
- Utilize Entity Framework's FromSqlRaw() method to execute the SQL function
When complex business logic is implemented in a SQL function, calling this function from Entity Framework involves using the FromSqlRaw() method. This method allows executing raw SQL queries or calling SQL functions directly. By utilizing FromSqlRaw(), Entity Framework can invoke the SQL function and incorporate its results into the application logic seamlessly.
Explain how you would handle a scenario in Entity Framework where a stored procedure returns multiple result sets.
- Adjust the stored procedure to return a single result set or use multiple stored procedure calls and LINQ to combine the results
- Entity Framework does not support stored procedures with multiple result sets
- Use multiple stored procedure calls and manually combine the result sets
- Utilize Entity Framework's NextResult() method after executing the stored procedure
In Entity Framework, handling a scenario where a stored procedure returns multiple result sets can be done by utilizing the NextResult() method after executing the stored procedure. This method allows iterating through the result sets returned by the stored procedure. By calling NextResult() repeatedly, Entity Framework can process each result set sequentially. This approach ensures that all result sets are properly retrieved and can be utilized within the application logic.