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All Blogs

Charishma Chadalavada

2 days ago4 min read

The COALESCE() Function in PostgreSQL

When I was learning PostgreSQL, I encountered a situation to handle NULL values. At that time I assumed NULL was equal to zero or blank...

SQL Subqueries: The Secret Ingredient to Smarter Queries

ektashah0440

3 days ago4 min read

SQL Subqueries: The Secret Ingredient to Smarter Queries

What is Subquery: Subquery in SQL is a query within a query. It’s asking a smaller question inside a bigger question. At times, to get...

The Recipe to Master the Order of SQL Queries

Charishma Chadalavada

4 days ago5 min read

The Recipe to Master the Order of SQL Queries

When you are first learning SQL, it can be like trying to find one's way through a maze, what comes after the other, GROUP BY or HAVING?...

Sheba Alice Prathab

Oct 155 min read

A Comprehensive Guide to SQL - Views

Welcome back to the SQL series! We now dive into a critical feature in SQL databases— Views . Views offer an abstraction over database...

A Comprehensive Guide to SQL - Stored Procedures

Sheba Alice Prathab

Oct 125 min read

A Comprehensive Guide to SQL - Stored Procedures

Stored procedures in PostgreSQL provide a powerful way to encapsulate complex logic, manage transactions, and handle data efficiently. In...

A Comprehensive Guide to SQL Triggers: DDL Triggers - PART II

Sheba Alice Prathab

Oct 124 min read

A Comprehensive Guide to SQL Triggers: DDL Triggers - PART II

In the previous blog, we learned about SQL triggers and discussed DML triggers in detail, covering all the combinations of BEFORE and...

A Comprehensive Guide to Indexes in SQL: From Basics to Advanced Usage

Sheba Alice Prathab

Oct 1010 min read

A Comprehensive Guide to Indexes in SQL: From Basics to Advanced Usage

Indexes are vital components in SQL databases, enabling faster data retrieval and improving query performance. This blog explores what...

A Complete Guide to SQL Operations: Inserting, Updating, Deleting - Rows, Dropping and Truncating -Tables

Sheba Alice Prathab

Oct 86 min read

A Complete Guide to SQL Operations: Inserting, Updating, Deleting - Rows, Dropping and Truncating -Tables

In the world of databases, SQL (Structured Query Language) is essential for performing various operations that allow users to manage...

Understanding SQL Tables: A Comprehensive Guide to Data Types and Constraints

Sheba Alice Prathab

Oct 84 min read

Understanding SQL Tables: A Comprehensive Guide to Data Types and Constraints

In the realm of data management, databases serve as structured collections of information. They enable the storage, retrieval, and...

anniekumari2013

Sep 306 min read

Optimizing PostgreSQL Queries

Optimizing PostgreSQL Queries: Techniques and Examples PostgreSQL is a powerful and versatile relational database system, but the...

anniekumari2013

Sep 303 min read

Mastering Excel Data Cleaning

Mastering Excel Data Cleaning is an essential skill needed in most fields and industries today. In a data-driven world, maintaining high...

keyuripalav

Sep 275 min read

Exploratory Data Analysis with SQL

Structured Query Language or SQL One of the most popular and easy-to-learn tools for data analysis is SQL. It let us retrieve , filter ,...

rashmi chauhan

Sep 62 min read

Advanced SQL: Window Function

A window aggregate function is an easy way to perform an aggregate calculation without changing the query to an aggregate query. This...

Sruthi Sudhagaran

Aug 288 min read

Back to basics - SQL Joins

SQL (Structured Query Language) is the core of relational database systems that helps in handling of data. JOIN statement is used to...

Common Table Expressions (CTE) in PostgreSQL

Reeba Thamby

Jun 194 min read

Common Table Expressions (CTE) in PostgreSQL

In this blog, we will see about CTEs in PostgreSQL. What is CTE? The Common Table Expressions (CTE) were introduced into standard SQL in...

ALL ABOUT RANKING FUNCTIONS AND UNIONS IN SQL

Saranya Shanmugam

Jun 164 min read

ALL ABOUT RANKING FUNCTIONS AND UNIONS IN SQL

Analytic Functions Analytic Functions help while working with complex data sets. So it is important to understand it correctly. Also, it...

Guide to PostgreSql Date and Time functions

manali patil

May 234 min read

Guide to PostgreSql Date and Time functions

Most of us struggle with operating date and time in PostgreSQL. But you know what, PostgreSQL has many built in date functions which can...

Vijaya Lakshmi Vanga

May 235 min read

SQL JOINS in PostgreSQL

Learn or Review the concepts of SQL Joins

How Can I Use Tableau, Python, and SQL for Joins in Data Analysis?

monishamurugadass

May 218 min read

How Can I Use Tableau, Python, and SQL for Joins in Data Analysis?

Joins Joins in the data world means combining two tables horizontally. Join functions/queries help us to consolidate two separate tables...

Malli

May 164 min read

Demystifying Functions and Procedures in POSTGRESQL

POSTGRESQL Functions and Procedures A procedure is a database object similar to a function. The key differences are: Procedures are...