Resources   No resource found

• What is Strings and DictionariesJun 30, 2025. Strings and Dictionaries are core data types in programming. Strings store text, while Dictionaries hold key-value pairs, allowing fast data lookup and organization. Both are widely used.
• Mastering LINQ in C#Jun 25, 2025. Language Integrated Query (LINQ) is a game-changer in C#. It brings SQL-like data querying capabilities directly into your C# code, making data manipulation more intuitive, type-safe, and readable.
• Basic SQL Queries for Database TestingJun 23, 2025. Learn essential SQL queries used in database testing. This guide covers SELECT, JOIN, WHERE, and more—ideal for QA testers and beginners ensuring data accuracy and integrity in applications.
• Table Sharding in SQL: Types, Examples, and Best PracticesJun 10, 2025. Table sharding improves database scalability and performance by splitting large tables into smaller, distributed shards. It enhances speed, fault tolerance, and cost-efficiency—ideal for growing applications with heavy data loads.
• MongoDB Filter Query Cheat SheetJun 04, 2025. This article explains how to use filters in MongoDB GUI tools (like MongoDBCompress or Compass) using simple query examples. You’ll learn how to search for records, use conditions, sort results, and filter by dates or partial matches, all without writing any code!
• EJB QUERY LANGUAGE (EJB QL)May 30, 2025. EJB QL is a query language used to query enterprise beans and their relationships, supporting string and arithmetic functions, with syntax defined using Backus-Naur Form (BNF) for structured query creation.
• How to Clean Data in Pivot Query in ExcelMay 16, 2025. In this article, we will learn how to clean and prepare your data directly within Pivot Queries in Excel.
• Advanced Data Warehouse Modeling and Querying Using C# and .NET 9May 13, 2025. Use C# 14 and .NET 9 to design, query, and manage data warehouses efficiently. Automate schema creation, support SCD Type 2, integrate with BI tools, and run high-performance queries for real-time analytics.
• Advanced ETL from OLTP Databases to a Data Warehouse with C# 14May 12, 2025. Build scalable and efficient ETL pipelines using C# 14 and .NET 9. Leverage Dapper, SQL Server, Azure Synapse, and cloud integration for seamless data extraction, transformation, and loading to data warehouses and lakes.
• Improved CRUD operations for GridView with Redshift in ASP.NET Core MVC (Utilizing C# 14 Features)May 08, 2025. Learn how to enable CRUD operations in an ASP.NET Core MVC application using Amazon Redshift and C# 14 features. This guide covers setup, connection, SQL commands, data manipulation, security, and best practices.
• Creating a WebApi Project in .NET 9 [GamesCatalog] 18Apr 28, 2025. Learn how to set up an ASP.NET Core Web API with MySQL using Entity Framework Core. This guide covers creating projects, configuring the database, defining DTOs, adding migrations, and creating a users table in the database.
• How to Convert a DataTable to a List of Objects in C#Apr 27, 2025. Learn how to convert a DataTable to a List<T> in C#. Explore manual, reflection-based, and LINQ methods for better performance, type safety, and cleaner code. Improve maintainability in modern C# applications.
• Understanding Change Data Capture (CDC) and Its TypesApr 23, 2025. In this article we are going to learn about the CDC and types of CDC approaches. It helps keep data in sync without causing a heavy load on the database.
• Order of Execution in LINQ QueriesApr 22, 2025. This article explains the difference between deferred and immediate execution, outlines the execution order, and shares best practices to write efficient and optimized LINQ queries for real-world applications.
• Execution Process of SQL Queries vs Stored Procedures Apr 21, 2025. Dive deep into the internal execution process of SQL Server queries with this one-of-a-kind article comparing normal SQL queries and stored procedures.
• What is New in JDK 24?Apr 18, 2025. JDK 24 introduces preview features like unnamed variables, pattern matching for primitives, string templates, and performance boosts, enhancing Java's productivity, readability, and native integration for modern development.
• Create Foreign Keys Dynamically in SQL Server DatabaseApr 10, 2025. Create the referential integrity constraint i.e. Foreign key dynamically in SQL Server database. This script dynamically adds foreign keys to all tables with a CompanyID column by scanning the database, ensuring they reference the Company table—ideal for retrofitting relational integrity.
• Mastering SQL String FunctionsMar 25, 2025. SQL string functions help manipulate and process text data efficiently. This guide covers key functions like UPPER(), LOWER(), LEN(), LEFT(), RIGHT(), SUBSTRING(), REPLACE(), CONCAT(), LTRIM(), RTRIM(), CHARINDEX(), REVERSE(), and FORMAT(), demonstrating their usage with examples to improve query performance and readability.
• Understanding Parameter Sniffing in SQL ServerMar 24, 2025. In SQL Server and other relational database systems, query execution performance is critical for handling large datasets efficiently. One common yet sometimes problematic optimization technique is Parameter Sniffing. While it can improve query performance.
• SQL Tag Library in Java Server PageMar 21, 2025. JSTL SQL tags are used to access databases and are designed for low-volume Web-based applications.? JSTL SQL tags facilitate database interactions in JSP pages, enabling data source setup, query execution, updates, and transactions through tags like <sql:setDataSource>, <sql:query>, <sql:update>, and <sql: transaction>
• Understanding SQL Execution PlansMar 20, 2025. An SQL execution plan outlines how a database executes a query, detailing operations like table scans, index seeks, and joins. Analyzing these plans is essential for optimizing query performance.
• Understanding SQL CTE (Common Table Expression)Mar 19, 2025. A Common Table Expression (CTE) in SQL is a temporary result set that improves query readability and performance. CTEs simplify complex queries, support recursive operations, and help with aggregation and multi-step calculations.
• Understanding Expressions in C#: Dynamic Code and Query GenerationMar 19, 2025. Expressions in C# allow dynamic query generation, runtime compilation, and code transformation using Expression Trees. They are widely used in LINQ, ORM frameworks like Entity Framework, and reflection to optimize performance and enable flexible, data-driven logic.
• Running Azure Resource Graph Queries in an Azure Logic AppMar 12, 2025. Learn how to run Azure Resource Graph queries within an Azure Logic App to automate resource management and gain insights into your Azure environment.
• Most Used GlideRecord Methods in ServiceNowFeb 27, 2025. GlideRecord is a powerful ServiceNow API used to interact with database tables. This article explores the most commonly used GlideRecord methods, helping developers query, retrieve, update, and manipulate records efficiently.
• Understanding Escape Characters in .NETFeb 21, 2025. Escape characters in .NET, especially in C#, allow special characters to be represented within strings. They are used to format text, and include new lines (\n), tabs (\t), quotes (\"), and more.
• Explaining Aggregate Functions in SQLFeb 14, 2025. Learn about SQL Aggregate Functions like SUM, COUNT, AVG, MIN, and MAX. These functions help perform calculations on grouped data, such as finding totals, averages, and minimum or maximum values, making data analysis more efficient.
• Most common GlideRecord objects in ServiceNowFeb 04, 2025. This article provides an overview of common GlideRecord methods in ServiceNow, which are essential for interacting with the platform's database. It covers key methods like querying, inserting, updating, deleting records, and managing permissions.
• Be Careful Using Distinct and OrderBy in EF Core QueriesFeb 03, 2025. Combining Distinct() and OrderBy() in EF Core queries can lead to performance issues. This article explains why and offers solutions for efficient data retrieval.
• Installing and Using GitHub Copilot in Azure Data StudioJan 31, 2025. Azure Data Studio helps manage databases and write SQL queries. With GitHub Copilot, it auto-suggests code completions, making complex SQL tasks easier, including writing queries, using JOINs, and generating reports efficiently.
• Exploring Snowflake SQL New Capabilities Using SELECT StatementJan 29, 2025. Learn how to leverage new features for efficient data querying, optimization, and advanced analytics in Snowflake’s cloud data platform. Perfect for data professionals.
• Java Program for Counting the Number of Vowels in a StringJan 28, 2025. This article explains how to count the number of vowels (a, e, i, o, u) in a given string using Java. It covers two approaches: a simple method using loops and conditional statements, and a more optimized approach utilizing a Set for quick vowel lookups.
• How to Create A Pivot Table in PostgreSQLJan 22, 2025. This article covers using crosstab functions, grouping, and SQL queries to pivot rows into columns, making it easier to analyze complex datasets. Perfect for data analysis and reporting tasks in PostgreSQL.
• Java 21 JUnit Testing Best PracticesJan 21, 2025. The best practices for JUnit testing in Java 21 by Ziggy Rafiq include leveraging new language features like record patterns and string templates. Develop maintainable and robust Java applications by leveraging test isolation, AAA patterns, and parameterized tests.
• How To Find All Possible Subsets of a String Using C#Jan 16, 2025. This article covers step-by-step implementation, explaining algorithms like recursion and iteration to generate subsets effectively. Perfect for beginners and developers, enhance your string manipulation and problem-solving skills in C#.
• SQL Server – Query Performance – Database Maintenance can HelpJan 14, 2025. To improve query performance in an ASP.NET MVC application using SQL Server, periodic database maintenance steps like updating statistics and defragmenting indexes are essential. This includes manual or automatic execution for optimal results.
• Simplify Your Queries With “AutoInclude” In EntityFramework CoreDec 30, 2024. In this article, we will discover how the "AutoInclude" feature in EntityFramework Core simplifies query writing by automatically including related navigation properties.
• Implementation of String Manipulation in C# 9.0Dec 29, 2024. Explore various string manipulation techniques in C# 9.0, including concatenation, searching, replacing, and more. Learn how to leverage these methods to write cleaner and more efficient code.
• Using Regex in C# 9.0Dec 28, 2024. Regular Expressions (Regex) can help with text processing, validating data, and manipulating strings in C# 9.0. This article explains the key features, applications, and benefits of using Regex in your code.
• Binary To Decimal Conversion in C#Dec 27, 2024. This article explains how to convert a binary number to a decimal number in C#. It covers two methods for the conversion, providing examples and code snippets. It's a helpful resource for beginners and intermediate programmers learning C#.
• Decimal to Binary Conversion in C#Dec 26, 2024. Learn how to convert decimal to binary in C#. Understand decimal and binary numbers, explore examples, and implement a simple program. This guide is perfect for beginners and professionals preparing for interviews.
• How to Reverse a String in JavaDec 24, 2024. Reversing a string in Java is a common task that involves reversing the order of characters in a string. For example, "Hello" becomes "olleH". To accomplish this in Java, we can use the StringBuilder class, which allows us to efficiently manipulate and reverse strings.
• How To Count Occurrence Of Each Character From The String In C#Dec 21, 2024. Learn how to count the occurrence of each character in a string using C#. This guide covers step-by-step instructions to efficiently analyze strings and determine the frequency of individual characters.
• SQL Exists: Usage, Syntax, and ExamplesDec 19, 2024. The "SQL EXISTS" clause is used to test whether a subquery returns any records. It's commonly used in conditional statements to improve query performance. This article covers the syntax, usage, and practical examples of how to implement the EXISTS clause in SQL queries effectively.
• How To Remove Duplicate Characters From String In C#Dec 18, 2024. Learn how to remove duplicate characters from a string in C# with simple and effective methods. it will cover various approaches, including using loops, LINQ, and HashSet, to streamline string manipulation.
• Understanding Responsive ApplicationsDec 13, 2024. Create seamless responsive applications compatible with all devices. Learn key tips, including viewport meta tags, CSS media queries, grid systems, accessibility, lazy loading, performance testing, and modern frameworks like Bootstrap or Tailwind CSS.
• Connection String in ASP.NET Core MVC .NET 8Dec 13, 2024. Learn how to manage and use connection strings in applications, explore AppSettings.json, environment variables, and static classes, and understand their implementation with sample code for seamless database connectivity.
• Character Occurrence in a String in C#Dec 13, 2024. In this article, I will discuss how to count the number of occurrences of a character in a string in C# with Examples. This article explores various ways to count character occurrences in a string using C#, including loops, dictionaries, and LINQ techniques, with detailed examples and practical explanations.
• New LINQ Methods in .NET 9: Index, CountBy, and AggregateByDec 11, 2024. In this article, I will showcase the new methods: Index, CountBy, and AggregateBy. These powerful additions in .NET 9 bring significant enhancements to LINQ, aimed at improving your coding experience and simplifying data manipulation tasks.
• How To Reverse Each Word Of Given StringDec 09, 2024. This article demonstrates how to reverse each word in a string using C#. It provides a simple approach to solving this common interview question, with code examples and explanations.
• Explaining Palindrome Program in C#Dec 09, 2024. In this article, I will discuss the Palindrome Program in C# (Palindrome Number and Palindrome String) with Examples. It includes detailed explanations and practical C# implementations.
• How to Reverse Order of the Given StringDec 08, 2024. Discover simple methods using popular programming languages like JavaScript, Python, or Java. Understand string manipulation concepts and implement effective solutions for reversing text with code examples and explanations.
• Take Input in Java using Scanner Class with CodeDec 06, 2024. Learn how to capture user input in Java using the Scanner class. This guide covers importing, creating Scanner objects, reading inputs (strings, integers, doubles), and handling exceptions with examples.
• Palindrome String Program in C#Dec 04, 2024. Explore how to determine if a string is a palindrome in C#. Learn the concept and examples, and implement a simple solution to check palindrome strings for interview preparation.
• How to Reverse a String in C#?Dec 03, 2024. Explore four methods to reverse a string in C#: using string.Reverse(), Array.Reverse(), for loop, and foreach loop. Ideal for interview preparation with practical examples and outputs.
• Optimizing Performance in Azure Cosmos DB: Best PracticesNov 29, 2024. Azure Cosmos DB optimization enhances performance, scalability, and cost-efficiency. Key practices include selecting the right partition key, customizing indexing, optimizing queries, tuning consistency levels, and leveraging TTL and change feed.
• What is a CTE, and How Do You Write a CTE in SQL Server?Nov 29, 2024. A Common Table Expression (CTE) in SQL Server is a temporary result set that can be referred to within a SELECT, INSERT, UPDATE, or DELETE query. CTEs simplify complex queries by breaking them into manageable parts.
• C# Foundation - Implicitly Typed VariablesNov 28, 2024. Implicitly typed variables in C#, declared using the var keyword, let the compiler infer the data type from the initialization expression. This improves code readability and reduces verbosity, especially with complex types.
• Format Literal Strings in C#Nov 26, 2024. Different techniques to display special characters and add different types of formatting to the output. This article explores C# string literals, including regular, verbatim, and interpolated strings, escape sequences, and formatting techniques like composite formatting.
• Webgrid and Gridview in ASP.NET Core and .NET Core ExplainedNov 21, 2024. Learn dynamic paging and sorting in .NET Core using JavaScript and jQuery. Modify URLs with query strings for seamless server interaction, leveraging Bootstrap for responsive design and intuitive user experience.
• .NET 9 Features with Code ExampleNov 19, 2024. Learn how abstraction simplifies complex systems by unifying interfaces, abstract classes, and dependency injection. Build modular, maintainable, and testable applications with this comprehensive guide.
• Temporary Tables vs Table Variables in SQL Server ExplainedNov 19, 2024. This article explores their key distinctions, advantages, and ideal applications, helping users understand when to use each for better query performance and resource optimization.
• Data Professionals to LLM/GPT Prompting for Everyday TasksNov 17, 2024. A guide for data professionals on leveraging Microsoft OpenAI with Python for efficient workflows and enhanced data analysis. Focuses on prompt design, including clear instructions, context, and temperature adjustments.
• How to Sort a List of Objects in TypeScript by PropertyNov 09, 2024. This guide covers sorting lists of objects in TypeScript, with examples for sorting by string, numeric, and date properties. It demonstrates using the sort() method, localeCompare for strings, custom sorting functions for dates and numbers, and multi-property sorting techniques.
• Understanding Distributed and Monolithic SQL ArchitecturesNov 05, 2024. In this article, we explore the key differences between distributed and monolithic SQL architectures. We delve into their respective advantages and disadvantages, focusing on scalability, performance, and data management.
• Windowing Enhancements New T-SQL Enhancement in SQL ServerOct 29, 2024. SQL Server 2022 introduces advanced T-SQL features, enhancing window functions, aggregations, and NULL handling. New options like the WINDOW clause and IGNORE NULLS optimize complex data queries, reduce code duplication, and improve readability.
• Create a Model with Database Table in .NET 8 using EF CoreOct 28, 2024. This article guides you through creating a data-driven application using .NET 8 and Entity Framework Core. You'll learn to define a model, configure a DbContext, set up a SQL Server connection string, and use migrations to manage your database schema.
• How Select and SelectMany Works in C#Oct 26, 2024. Learn key differences, practical use cases, and examples that demonstrate how these methods simplify data manipulation, making it easier to work with nested and complex data structures in C#.
• STRING_SPLIT() Ordinal New T-SQL Enhancements in SQL ServerOct 16, 2024. The STRING_SPLIT() function in SQL Server, introduced in 2016, allows for splitting delimited strings into rows. The 2022 enhancement introduces an optional ordinal parameter, enabling retrieval of each value's original position in the string.
• How To Delete Duplicate Rows From A Table In SQL ServerOct 12, 2024. This guide explains how to delete duplicate rows from a table in SQL Server. Using common techniques like ROW_NUMBER() with PARTITION BY, you can identify and remove duplicate rows while keeping the original.
• Mastering SQL Query Generation with Azure OpenAIOct 09, 2024. Leverage Azure OpenAI to transform natural language into SQL queries seamlessly. By integrating Azure OpenAI and Azure SQL Database, you can simplify data querying and enhance accessibility. Learn how to set up the environment, construct prompts, and generate SQL queries using powerful AI models.
• Exploring Aggregate Functions in Azure Cosmos DBOct 07, 2024. Aggregate functions in Cosmos DB allow efficient data summarization and analysis across multiple documents. They perform calculations such as AVG, COUNT, SUM, MAX, and MIN to retrieve meaningful insights from large datasets.
• IS [NOT] DISTINCT FROM New T-SQL Enhancements in SQL ServerOct 04, 2024. The "IS [NOT] DISTINCT FROM" operator is one of the key new T-SQL enhancements in SQL Server 2023. It simplifies SQL queries by handling NULL comparisons more efficiently, improving data integrity and performance.
• Hidden Gems - Converting the Table Response Into String VariableOct 03, 2024. Discover the hidden gems and best practices for effectively handling data within Microsoft Copilot. Enhance your AI-driven applications by learning essential techniques for data manipulation and integration.
• Hidden Gems - Adding the Custom Data to Generative AnswersOct 03, 2024. Learn how to input a string variable as custom data for the Generative Answers component in Copilot Studio. Overcome challenges like binding errors and formatting issues by converting large text into a table format using PowerFx. Process data efficiently and generate responses tailored to user queries.
• A Detailed Explanation of COUNT in SQL ServerOct 01, 2024. This article explores the differences between SQL counting methods: COUNT(*), COUNT(1), COUNT(column_name), and COUNT(DISTINCT column_name). It highlights their purposes, performance considerations, and use cases, emphasizing the importance of choosing the right COUNT function for efficient queries.
• Palindrome Check: Normalize Strings in C#Sep 30, 2024. Learn essential string manipulation techniques, including whitespace removal, case insensitivity, and character comparison. We’ll provide clear code examples and algorithms to efficiently determine if a given string reads the same forwards and backwards, enhancing your C# programming skills.
• Rank and Dense_Rank Function in SQL ServerSep 30, 2024. RANK and DENSE_RANK functions in SQL Server assign sequential numbers to rows based on ordering. RANK skips numbers for ties, while DENSE_RANK does not. Both can partition results using the PARTITION BY clause. These functions are commonly used to rank rows, find highest salaries, and more.
• Explaning Joins in Azure Cosmos DB Sep 30, 2024. Azure Cosmos DB enables seamless querying using SQL-like syntax, allowing joins within JSON documents. This feature facilitates data retrieval from arrays and nested objects within a single container, enhancing the ability to manage complex datasets.
• How To Get Unique Records Without Using Distinct In SQL ServerSep 26, 2024. In this guide, you'll learn how to retrieve unique records in SQL Server without using the DISTINCT keyword. We'll explore alternative methods like GROUP BY, ROW_NUMBER(), and Common Table Expressions (CTE) to optimize performance and handle duplicates more efficiently in your queries.
• Explaning MongoDB Logical OperatorsSep 24, 2024. In MongoDB, logical operators are essential for constructing complex queries by combining multiple conditions. Key operators include $and (for all conditions), $or (for any condition), $not (to negate conditions), and $nor (to exclude all specified conditions).
• Learn MongoDB Evaluation OperatorsSep 24, 2024. MongoDB's evaluation operators enable advanced query operations, allowing for dynamic data retrieval beyond simple comparisons. Key operators include $regex for regular expression matching, $mod for modulus operations, $expr for expression evaluation, and $where for JavaScript-based queries.
• Check Disk Space Utilization by Tables in SQL Server DatabaseSep 23, 2024. In this guide, learn how to effectively check disk space utilization by tables in a SQL Server database. We’ll cover essential SQL queries and techniques to analyze table sizes, identify storage usage, and optimize database performance.
• Get First Row from Dataverse Table in Power AutomateSep 22, 2024. Learn how to retrieve the first row from a Dataverse table using Power Automate. This guide walks you through creating a flow, filtering contacts with emails, and using expressions to extract the first row's contact ID, full name, and email.
• MongoDB Comparison OperatorsSep 20, 2024. Learn how to use MongoDB comparison operators like $eq, $ne, $gt, $lt, and more in this comprehensive guide. Master querying and filtering data with practical examples and best practices for efficient database operations.
• Create Calendar Table Using Power QuerySep 20, 2024. We’ll explore step-by-step instructions for transforming date data, implementing essential date functions, and enhancing your data analysis capabilities in Excel and Power BI. Perfect for improving your reporting and time intelligence skills!
• Understanding Model Binding in ASP.NET Core with .NET 8Sep 17, 2024. Model binding in .NET Core simplifies the process of mapping HTTP request data to action method parameters. It automatically extracts data from various sources like query strings, form submissions, route parameters, HTTP headers, and request bodies, making it easier to handle client-server interactions efficiently.
• Data Virtualization from Azure Blob Storage in Azure SQL DatabaseSep 16, 2024. This solution enables Azure SQL Database to directly access and read files from Azure Blob Storage using External REST Endpoints, bypassing the need for physical data loading. It leverages database-scoped credentials with a shared access signature (SAS) to securely virtualize external data access.
• Arrays of Strings in Multidimensional ArraysSep 09, 2024. Multidimensional arrays store data in multiple levels, enabling complex data structures like arrays of strings. This guide explores how to create, access, and manipulate string arrays within multidimensional arrays.
• Learn Common Table Expressions (CTE) in SQLSep 04, 2024. Common Table Expressions (CTEs) in SQL are a powerful tool for simplifying complex queries. They allow you to create temporary result sets that can be referenced within a SELECT, INSERT, UPDATE, or DELETE statement.
• SQL Subqueries: Correlated, Scalar, and EXISTS/NOT EXISTSSep 04, 2024. Subqueries in SQL are powerful tools for complex queries. They include correlated subqueries, which depend on the outer query’s results, scalar subqueries that return single values, and EXISTS/NOT EXISTS subqueries used to check for record existence.
• Filter and Display New Employees in Power Apps with Microsoft GraphSep 03, 2024. Create a Power Apps app that lists new employees who joined this year by using the Microsoft Graph API. With a button click, retrieve and display user data filtered by hire date in a gallery. This app uses Office 365 Users, date pickers, and custom API queries to show employee names efficiently.
• Power Query: Best Practices for Memory ConsumptionSep 02, 2024. To optimize memory usage in Power Query, filter data early, minimize query steps, and utilize query folding to reduce data processed. Disable background data loading, optimize data types, use dataflows for repetitive tasks, split large files, and consider upgrading to a 64-bit version for better performance.
• Introduction to SQL Server & Its HistorySep 02, 2024. Learn how to create, manage, and query databases using SQL Server, with a focus on essential concepts like database design, data storage, and SQL queries. Perfect for beginners aiming to build a strong foundation in database management.
• Dynamic LINQ with Gridify in .NETAug 30, 2024. Learn how to leverage Gridify to simplify complex filtering, sorting, and pagination tasks. Perfect for developers seeking to optimize and extend their use of LINQ in C# applications.
• Default Implementation in C# InterfacesAug 28, 2024. This article details creating a `StringUtils` utility class in Java to centralize common string operations. It covers methods for checking if a string is alphanumeric with underscores or consists solely of letters, enhancing code organization and reusability.
• Inner Join vs Cross Apply and Left Outer Join vs Outer ApplyAug 28, 2024. In SQL, INNER JOIN and CROSS APPLY differ in functionality; INNER JOIN merges rows based on a condition, while CROSS APPLY uses a table-valued function for dynamic row operations. LEFT OUTER JOIN includes unmatched rows as NULL, whereas OUTER APPLY combines this with table-valued functions for enhanced flexibility.
• Centralizing String Utility Functions in JavaAug 27, 2024. This article explains how to consolidate common string utility functions in Java by creating a utility class like StringUtils. It covers methods for checking if a string contains only alphanumeric characters with underscores and if a string consists solely of letters, improving code organization and reusability.
• Understanding IN vs EXISTS in SQLAug 22, 2024. Explore the differences between the IN and EXISTS operators in SQL. Learn how each operator affects query performance, and understand their use cases in filtering and retrieving data. This guide provides insights into optimizing subqueries and improving SQL query efficiency.
• Explain Subqueries in PostgreSQLAug 16, 2024. Subqueries in PostgreSQL allow you to nest queries within other queries, enabling complex data retrieval. They can be used in various SQL clauses such as SELECT, FROM, WHERE, HAVING, and JOIN. Types include scalar, row, and table subqueries, with correlated subqueries providing powerful filtering capabilities.