LINQ basics

Shweta Kuthi

15y2.4kLINQ

Since SQL is a good query language then why does the need of LINQ arises in Realtional Databases.

4 Replies

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Pravin More15y ago
Accepted answer
Hi Shweta,

As per my knowledge about LINQ, linq not broken SQL but the need of LINQ is its Intigrated with C# (VB) useful for eliminating the impedance mismatch between programming languages and databases.
LINQ is simple for use compare to SQL.but thing is that they both have their own area of benifits.

Thanx,
Pravin.
Vipul Kelkar15y ago
Linq queries are simpler and once you learn the syntax,you can apply it to other sources too. Other advantage is intelliscence support, so no more creating strings and executing sql queries
Prabhu Raja15y ago
Hi,

LINQ (Language Integrated Query) is a Microsoft programming model and methodology that essentially adds formal query capabilities into Microsoft .NET-based programming languages. LINQ offers a compact, expressive, and intelligible syntax for manipulating data. The real value of LINQ comes from its ability to apply the same query to an SQL database, a Dataset, an array of objects in memory and to many other types of data as well.

Advantages of LINQ:

1) LINQ offers an object-based, language-integrated way to query over data no matter where that data came from. So through LINQ we can query database,XML as well as collections.
2) Compile time syntax checking
3) It allows you to query collections like arrays, enumerable classes etc in the native language of your application, like VB or C# in much the same way as you would query a database using SQL

Check this Article : http://www.c-sharpcorner.com/UploadFile/rekhasingh1610/507292009091322AM/5.aspx
Kunal Naik15y ago
Hi,

LINQ is a core languag feature of C# and VB.NET. As such it has nothing to do with SQL. But as a generalized query feature there exists multiple ways to use that feature to query databases. It is built on to of the SQL Server .NET API (System.Data.SqlClient).

Compiling linq queries every time on the fly on busy pages, can cause a lot of unnecessary over head and end up being slower. But thats what compiled Linq is for, so it compiles the query once and removes the overhead of doing it each time.

Also refer following link,

Basics of LINQ