3 min read · Feb 17, 2023 Common Table Expressions (CTEs) are a powerful feature in SQL that allow for breaking down complex queries into smaller, more manageable parts. They provide a way to temporarily store intermediate results, making it easier to write complex queries and improving their readability. In this article, we’ll explore the…
2 min read · Feb 18, 2023 COALESCE is a function in SQL that provides a way to return the first non-null expression among a list of expressions. It is a standard function in the SQL language and is supported by most relational database management systems (RDBMS), including popular ones such as MySQL, PostgreSQL, Microsoft…
4 min read · Feb 19, 2023 Tokenization is the process of breaking down text into individual units called tokens, which are typically words, but can also be phrases, subwords, or other linguistic units. Tokenization is a fundamental step in natural language processing (NLP) and is used in many NLP tasks, such as text classification,…
5 min read – Feb 20, 2023 Structured Query Language (SQL) is a powerful and widely used programming language for managing and manipulating data in relational databases. It is the backbone of data-driven applications and is a must-know language for anyone working with data. In this article, we will explore the reasons why you should…
5 min read · Feb 21, 2023 Structured Query Language (SQL) is a programming language designed to manage and manipulate data stored in relational databases. SQL is one of the most widely used languages in the world, and it’s essential for anyone who wants to work with data, whether they’re a data analyst, data scientist,…
5 min read · Feb 22, 2023 Welcome to the world of SQL Server! SQL Server is a popular Relational Database Management System (RDBMS) developed by Microsoft. It is used to store, manage, and retrieve data efficiently. Here are some basics to get you started: CREATE DATABASE MyDatabase; CREATE TABLE Customers ( CustomerID int PRIMARY…
5 min read · Feb 22, 2023 In SQL Server, the ISNULL function is used to replace NULL values with a specified replacement value. In this article, we will explore the ISNULL function and its usage in SQL Server. The ISNULL function syntax is as follows: ISNULL ( check_expression , replacement_value ) The first parameter…
4 min read · Feb 23, 2023 Natural Language Processing (NLP) is a field of study that deals with the analysis and processing of human language by machines. One of the fundamental tasks in NLP is text preprocessing and stop word removal is one of the most common preprocessing tasks in NLP. Stop words are…
4 min read · Feb 23, 2023 In addition to Python, R also has built-in functions and packages for stop word removal in text preprocessing. The tm (text mining) package is a popular package in R that provides a variety of functions for text preprocessing, including stop word removal. Here’s an example of how to remove stop…
4 min read · Feb 24, 2023 CASE statements are an important aspect of SQL programming. They allow you to control the flow of your query execution and make decisions based on specific conditions. CASE statements can be used in various parts of an SQL query, including (1) the SELECT statement, (2) the WHERE clause, (3) the HAVING Clause, and (4) within aggregate functions…