sp_executesql

Executes a Transact-SQL statement or batch that can be reused many times, or one that has been built dynamically. The Transact-SQL statement or batch can contain embedded parameters.

Syntax:
 EXECUTE sp_executesql 
          N'SELECT * FROM Book 
          WHERE BookID= @bookid', 
          N'@bookId int', 
          @bookId= 100;  

MEAN Stack

 MEAN Stack a combination of open source JavaScript framework

MEAN is actually combination of 3 JavaScript frameworks and a NoSQL or document based Database technology

M is for MongoDB

MongoDB is an open source, document-oriented database designed with both scalability and developer agility in mind. Instead of storing your data in tables and rows as you would with a relational database, in MongoDB you store JSON-like documents with dynamic schemas.

E is for ExpressJS

Express.js is a Node.js web application server framework, designed for building single-page, multi-page, and hybrid web applications. It is the de facto standard server framework for node.js.

A is for AngularJS

AngularJS is a structural framework for dynamic web apps. It lets you use HTML as your template language and lets you extend HTML's syntax to express your application's components clearly and succinctly.Angular's data binding and dependency injection eliminate much of the code you would otherwise have to write.

N is for NodeJS

nodejs.org. Node.js is an open-source, cross-platform runtime environment for developing server-side web applications. Node.js applications are written in JavaScript and can be run within the Node.js runtime on OS X, Microsoft Windows, Linux, FreeBSD, NonStop, IBM AIX, IBM System z and IBM.

MEAN is

The term MEAN stack refers to a collection of JavaScript based technologies used to develop web applications. MEAN is an acronym for MongoDB, ExpressJS, AngularJS and Node.js. From client to server to database, MEAN is full stack JavaScript.