For different business models, we need to use financial analysis techniques that help us analyze the business adequately. The financial analysis carried out in a business model is important as it helps to determine the weaknesses and strengths of different factors involved with the investment. The SQL queries enable financial analysis of different business models. …
We handle databases with the help of SQL queries. Complex problems require logical solutions. These logical solutions may be long sometimes. Problems based on data pipelines require very lengthy solutions. These types of queries are 1000 lines long in some cases. The long SQL queries contain different functions, clauses, and joins. Sometimes, queries also consist …
How to Organize Long SQL Queries: A Detailed Guide Read More »
SQL language provides a wide range of clauses, statements, functions, and JOINs to ease the complexity of the various models. Have you ever heard about the CTE and VIEW in SQL? The CTE is a Common Table Expression that is frequently utilized in complex problems to increase the readability of the overall model. On the …
PostgreSQL occupies an important place in database management with a rich set of built-in functions. Among these, the PostgreSQL string function is particularly noteworthy because of its flexibility and adaptability to text data in a database. For developers working on any product, software, or technology related to data binding, the familiar PostgreSQL string function can …
In PostgreSQL, managing and extracting data from string is one of the common requirements in database operations. We often deal with strings that contain delimited values, PostgreSQL provides various functions to facilitate the data extraction part efficiently. One such function is SPLIT_PART. In this tutorial, we will learn about the syntax, parameters and practical examples …
PostgreSQL SPLIT_PART() Function (Multiple Examples) Read More »
If you have been writing SQL queries for a while, you must be aware of the COUNT() function. It’s very simple to use, but it has multiple variations which often confuses people about when and exactly how to use them. In this tutorial, we are going to learn about different variations of COUNT functions and …
If you are looking to assemble a unique group of PostgreSQL developers for your team or to start a good career as a PostgreSQL developer, you have come to the right place. In this tutorial, we will provide you with a curated list of the most important PostgreSQL interview questions for advanced PostgreSQL developers, to …
Basic PostgreSQL Interview Questions and Answers Read More »
ROWS and RANGE are important SQL window functions. If you have been writing queries in SQL for a while, you may have experienced confusion regarding why there are two keywords for the same function, even when they give the same results in some situations. However, they are not the same! In this tutorial, we will …
ROWS and RANGE in Window Functions (With Examples) Read More »
If you have been writing queries in SQL, there must be various situations where you wanted to join the results obtained from two or more queries into a single result set, and you have wondered, “Is it possible to do that in SQL?”, Yes, it’s possible! In this tutorial, we will learn about different SET …
If you have been writing queries in SQL for a while, and you have faced certain situations where you need one query to use the result from another query, “Is it possible to use a Nested query in SQL?” is a question you could have. Yes, it’s possible! In this tutorial, we will learn about …