Linq difference faqs- 1
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The document outlines several key differences between LINQ and other data querying technologies: 1. LINQ queries are verified at compile time, unlike SQL which is only checked at runtime. LINQ also allows debugging under the .NET framework. 2. LINQ to SQL is best for rapid application development but only works with SQL Server, while Entity Framework supports multiple databases and complex types. 3. LINQ queries are type safe and can be debugged more easily than stored procedures, plus LINQ supports improvements like multithreading more readily.
Linq difference faqs- 1
- 1. 1.Difference between LINQ and SQL S.No LINQ SQL 1 LINQ Stands for language SQL stands for Structured integrated query. Query Language. 2 LINQ Statements are verified SQL statements can be used in a during compile time. application gets verified for their syntaxes only in the run time. 3 To use LINQ we can depend upon To use SQL we need to be familiar our .Net Language syntaxes and with SQL syntaxes and also the pre- also we can consume base class defined functions of SQL like library functionalities. MAX,MIN,LEN and SUBSTRING etc... 4 LINQ Statements can be As SQL statements execute on debugged as they execute under Database server debugging of the code framework environment. is not possible. SQL . 2.Difference between LINQ to SQL and Entity Framework S.No LINQ to SQL Entity Framework 1 It only works with Sql server. It works with variety of db products. 2 Used for rapid application Cannot used for rapid application development. development. 3 It does not support for complex It provides support for complex type. type. 4 It cannot generate db from model. It can generate db from model. 5 Mapping type ( class to single Mapping type ( class to multiple table) tables) 6 We can query data using We can query data using esql,object DataContext. services,entity client and linq to entities. Another Good Reference: http://jinaldesai.net/linq-to-sql-vs-entity-framework/ (OR) http://www.slideshare.net/jinaldesailive/linq-to-sql-vs-entity-framework-jinal-desai
- 2. 3.Difference between LINQ and Stored Procedures S.No LINQ Stored Procedures 1 As LINQ is part of .NET, we can It is really very hard to debug the use visual studio’s debugger to Stored Procedure debug the queries 2 With LINQ everything gets With Stored Procedures, we need to complied into single DLL hence provide an additional script for deployment becomes easy. deployment 3 LINQ is type safe, so queries Stored Procedures are not type safe errors are type checked at compile i.e., error can be caught only during time.It is really good to encounter runtime. an error when compiling rather than runtime exception! 4 LINQ supports multiple databases With Stored Procedures which need to be re-written for different databases. 5 LINQ supports abstraction which As Stored Procedures does not support allows framework to add abstaction , so it is difficult to add additional improvements like additional impovements like multi multi threading. It is much threading simpler and easier to add this support through LINQ than Stored Procedures. 6 LINQ queries need to compile Stored Procedures are ster thn LINQ before execution.Therefore, LINQ because they are precompiled i.e., is slower than Stored Procedures. Stored Procedures have a predictable execution plan.Therefore, if a stored procedure is being executed for the second time, the database gets the cached execution plan to execute the stored procedure. 4.Difference between LINQ to SQL and LINQ to Objects S.No LINQ to SQL LINQ to Objects 1 LINQ to SQL needs a Data LINQ to Objects does not need any Context object. The Data Context intermediate LINQ provider or API. object is the bridge between LINQ and the database. 2 LINQ to SQL returns data of type LINQ to Objects returns data of type IQueryable<T> IEnumerable<T>.
- 3. 3 LINQ to SQL is translated to SQL LINQ to Objects does not need to be by way of Expression Trees, translated. which allow them to be evaluated as a single unit and translated to the appropriate and optimal SQL statements. 4 LINQ to SQL is translated to SQL LINQ to Objects is executed in the calls and executed on the local machine memory. specified database 5.Difference between LINQ to SQL and LINQ to Entities S.No LINQ to SQL LINQ to Entities 1 Does not support Conceptual Data Supports Conceptual Data Model Model 2 Does not support Storage Schema Supports Storage Schema 3 Does not support Mapping Schema Supports Mapping Schema 4 Does not support New Data Access Supports New Data Access Provider Provider 5 Does not support Non-SQL Server Supports Non-SQL Server Database Database Support Support 6 Supports Direct Database Does not support Direct Database Connection Connection 7 Does not support Multiple-table Supports Multiple-table Inheritance Inheritance 8 Does not support Single Entity from Supports Single Entity from Multiple Multiple Tables Tables