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
JavaArrayC#InterviewControl Flow Git CommitSQLLoopLanguage-ConceptsSystem Design
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 array is a linear data structure that stores multiple elements of the same type in contiguous memory locations. It allows fast access using index positions, making operations like retrieval efficient. Arrays are widely used for organizing data, implementing algorithms and building other data structures. However, their size is fixed, making resizing difficult compared to dynamic collections.
C# (C-Sharp) is a modern, object-oriented programming language developed by Microsoft for building secure, scalable applications. It runs on the .NET platform and supports features like strong typing, garbage collection, LINQ, async programming and cross-platform development. C# is widely used for web, desktop, game development (Unity), cloud services and enterprise-level software solutions.
A structured conversation where one participant asks questions and the other provides answers of those questions.
A git commit is a command used to save changes to the local repository, creating a snapshot of the project at a specific point in time. Each commit includes a unique ID, message and details of modified files. Commits help track progress, document work and enable reverting or reviewing changes, forming the foundation of version control in Git.
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.
Loop are a type of control flow structure in programming in which a series of statements may be executed repeatedly until some condition is met.
This tag is used to understand a basic part of the language.
System design is the process of defining the architecture, components, modules, interfaces and data flow of a system to meet specific requirements. It focuses on creating scalable, efficient and maintainable solutions, covering both high-level design (HLD) and low-level design (LLD). Essential for building reliable, high-performance software systems.
Popular Articles
Static Class vs Singleton in C#: A Complete Deep Dive
Find the Maximum Subarray Sum | Largest Sum Contiguous Subarray | Kadane’s Algorithm | Maximum Subarray | Given an integer array nums, find the
subarray with the largest sum and return its sum | The Efficient Way to Find Maximum Subarray Sum
Learn how to create a primary key in SQL using syntax and examples. Ensure unique records, improve query performance and build table relationships.
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.
Maximum Product Subarray, Find Maximum Product Subarray in an Array, Given an integer array arr, find a subarray that has the largest product,
A Structured Approach to Cracking Technical Interviews. how to prepare for Technical Interviews? Technical Interviews preparation guideline
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 |
Mastering the Singleton Design Pattern in C#, Singleton Design Pattern in Depth: Structure, Use Cases and Best Practices, in depth design pattern, LLD , low level design
How to Approach HR Interview Questions , What to Keep in Mind While Answering HR Interview Questions, HR Interview Questions and Answers
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