PostgreSQL
PostgreSQL is a free, open source relational database management system. It was initially developed as a successor of the Ingres database
Top PostgreSQL Articles
How to Truncate a Table in SQL
TRUNCATE Table command in SQL | how to TRUNCATE TABLE in a database | how to TRUNCATE TABLE in SQL | TRUNCATE TABLE in MYSQL, SQL Server and Oracle
How to Rename a Tables in SQL
Rename Table command in SQL | how to rename a table in a database | how to rename a table in SQL | rename tables in MYSQL, SQL Server and Oracle
SQL COUNT Function: Syntax & Practical Examples
Learn how the SQL COUNT function works using COUNT(*) and COUNT(column). Understand row counting with conditions, grouping and real examples.
UPDATE Statement in SQL : Syntax & Examples
Learn how the SQL UPDATE statement modifies existing records in a table. Update one or multiple columns safely using conditions with real examples.
INSERT INTO Statement in SQL with Syntax & Examples
Learn how the SQL INSERT INTO statement is used to add new records into database tables. Understand syntax, methods and real-world usage examples.
ORDER BY Clause in SQL: Sort Query Results
Learn how the SQL ORDER BY clause sorts query results in ascending or descending order using one or multiple columns with examples.
SELECT DISTINCT Query in SQL for Unique Records
Learn how SELECT DISTINCT in SQL fetches unique records from a table using WHERE conditions, ORDER BY and GROUP BY for accurate query results.
SELECT Query in SQL : Fetch Data Using WHERE, ORDER BY & GROUP BY
Learn how the SQL SELECT query is used to fetch data from databases with conditions, sorting, grouping and filtering for real-world queries.
Popular Topics
InterviewC# CollectionSQLPostgreSQLSoftware DesignJavaInterview ExperienceMathQueryDSA
A structured conversation where one participant asks questions and the other provides answers of those questions.
In C#, Collections are classes in the System.Collections and System.Collections.Generic namespaces that store and manage groups of related objects. They include types like List<T>, Dictionary<TKey,TValue>, Queue<T> and Stack<T>. Collections offer dynamic sizing, built-in search, sorting and iteration, making data handling efficient and flexible in C# applications.
SQL stands for Structured query language. It is a programming language for storing and processing information in a relational database. It is standard language for accessing and manipulating databases.
PostgreSQL is a free, open source relational database management system. It was initially developed as a successor of the Ingres database
Software design is the process of planning and structuring a software system’s architecture, components, interfaces, and data flow to meet functional and non-functional requirements. It ensures scalability, maintainability and performance. Key approaches include modular design, object-oriented design and architectural patterns like MVC and microservices for efficient, reliable software development.
Java is a high-level object-oriented programming language. it's firstly released by Sun Microsystems in 1995. Use this tag when you're having queries using or understanding the language. This tag is also applicable to Java libraries and frameworks.
An interview experience is a detailed account of the interview process for a specific role, covering rounds, questions asked, difficulty level, preparation tips and personal insights to help future candidates understand what to expect and how to prepare effectively.
math tag that is used for mathematical operations Math is the study of numbers, shapes, patterns and logical relationships. It provides tools for problem-solving, measurement and analysis across science, technology, engineering and daily life. Math includes fields like algebra, geometry, calculus and statistics. It builds critical thinking skills and forms the foundation for computing, algorithms, data science and modern technological advancements.
In databases, a query is a request to retrieve, insert, update or delete data. Written in SQL (Structured Query Language), queries can be simple, like fetching all rows from a table, or complex, involving joins, conditions and aggregations. They are essential for interacting with and managing database information efficiently.
DSA (Data Structures and Algorithms) is a fundamental concept in computer science that focuses on efficiently storing, organizing and processing data. Data structures like arrays, linked lists, stacks and trees manage data, while algorithms provide step-by-step solutions to problems. Mastering DSA is essential for writing optimized, scalable and high-performance code.
Popular Articles
Amazon Transaction Logs (example question), Amazon Transaction Logs Interview question
Mastering the Template Design Pattern in C#, Template Design Pattern in Depth: Structure, Use Cases and Best Practices
How to Approach HR Interview Questions , What to Keep in Mind While Answering HR Interview Questions, HR Interview Questions and Answers
Learn how to create a primary key in SQL using syntax and examples. Ensure unique records, improve query performance and build table relationships.
Length of the Longest Substring Without Repeating Characters | Given a string str find the length of the longest substring without repeating characters | find the length of the longest substring without repeating characters in a given string |
Top 50 SQL Interview Questions and Answers (Beginner to Intermediate). Top SQL Interview Questions for fresher. Frequently asked SQL interview questions with answers
You are given two integer arrays arr1 and arr2, sorted in accending order, and two integers m and n, representing the number of elements in arr1 and arr2 respectively. Merge arr1 and arr2 into a single array sorted in accending order.
namespace in c# | namspace concept in c# | c# namespace | c sharp namespace | what is namesapce and it's use cases | why should we use namespace
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