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Dotnet Concepts

  Stored Procedures VS  LINQ: The speed comparison between LINQ (Language Integrated Query) and Stored Procedures depends on factors such as query complexity, data volume, and the execution environment. Stored Procedures : Precompiled Execution : Stored procedures are precompiled, making execution faster since no parsing or optimization is required. Reduced Network Traffic : They run on the server, minimizing data transfer between the application and the database. Efficiency for Complex Logic : Complex operations, like loops or conditionals, are handled efficiently within stored procedures. LINQ : Flexibility : LINQ provides an abstracted, flexible way to query data using strongly typed syntax, integrating well with .NET languages. Performance Considerations : LINQ-generated SQL queries are typically less optimized than hand-written SQL and can sometimes be inefficient, especially in complex queries or w...

Angular - Concepts

1. Selector: In Angular, the selector is a property used to define how a component or directive is attached to the HTML view. The selector is specified inside the @Component or @Directive decorator and determines how the component or directive can be applied to the HTML DOM. Types:      It can be defined as an element , attribute , or class selector. Element Selector:           The component is used like a regular HTML element. <app-root></app-root> Attribute Selector:           The directive or component is applied to an HTML element as an attribute. <div app-root></div> Class Selector:           The directive or component is applied when a certain class is used on an element. <div class="app-root"></div> Multiple Selectors: It’s possible to use multiple selectors to make a directive or component apply to different elements. @Directive ({ s...

IEnumerable VS IQueryable

IEnumerable<T> is an interface in the System.Collections.Generic namespace, used for iterating over a collection of objects one at a time. It operates with deferred execution for in-memory collections, meaning the query is executed after the data is fetched. Commonly used with in-memory collections like lists or arrays, and in LINQ-to-Objects queries. Operations like Where, Select, and OrderBy are applied in memory once the collection is loaded. Not ideal for large datasets, as it loads the entire collection into memory, which may cause performance issues.   IEnumerable<T> is commonly used for:   Filtering and Transforming Data: Modifying in-memory collections (e.g., filtering products or transforming strings with LINQ). Sorting and Paging: Sorting and paginating in-memory datasets (e.g., displaying user data with pagination). Aggregation: Performing calculations like Sum, Count, or Average on small datasets (e.g., calculating total revenue from...

SQL SERVER Concepts

1. SQL SERVER: SQL Server is a relational database management system (RDBMS) developed by Microsoft. It stores and manages data in structured tables using SQL (Structured Query Language). SQL Server is known for its scalability, performance, security features, and support for high availability. It is widely used for business applications, data warehousing, and reporting. Key features: Efficient data storage and query management. Strong security and access control. High availability with backup and disaster recovery options. Integration with business intelligence tools. Scalability for handling large data volumes. 2. Database: A database in SQL Server is a logical container that holds and organizes data in a structured format. It is a discrete unit that manages and stores data, encompassing various database objects such as tables, views, stored procedures, and indexes. SQL Server can host multiple databases within a single instance, allowing independent management of each database. Alth...