Programming 

Artificial Intelligence, Machine Learning, Deep Learning, and Data Science — What’s the Difference?

Answer: Deep learning is a subarea of machine learning which is a subarea of artificial intelligence. Data science is an interdisciplinary area that combines all of those with math and programming skills to extract useful insights from data. “I’m trying to understand how the area of skills are related to each other, and one is a dependency of another. I hope you clarify for me where to start and how the path looks like. I know it’s a complicated question.” — Barakah, Python Freelancer Course Member Let’s start with a…

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java 

Difference between StringJoiner vs String.join in Java 8 with Examples

Joining multiple String literals or object into one is a common programming requirement and you will often find situations where you need to convert a list of String or a Collection of String into a CSV String for your application. For a long time, JDK API has no way to join multiple String literals or objects together, which forces programmers to write hacks like looping through all String objects and manually joining them using String concatenation to create the final, joined String. Even though this approach worked, it was filled…

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Difference between Core Java and Advanced Java

Java was introduced in 1995 and ever since its introduction, it has continued to evolve and contribute to the software world in a way that even today, its importance in running various applications cannot be neglected. But, java too can be easily categorised into advanced and core and learning the difference between them is very important. Difference between Core Java and Advanced Java Core Java Advanced Java 1. Core java  is the basic java which includes very simple concepts and is used for general applications. Also, the Java standard edition…

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The Performance Difference Between SQL Row-by-row Updating, Batch Updating, and Bulk Updating

Something that has been said many times, but needs constant repeating until every developer is aware of the importance of this is the performance difference between row-by-row updating and bulk updating. If you cannot guess which one will be much faster, remember that row-by-row kinda rhymes with slow-by-slow (hint hint). Disclaimer: This article will discuss only non-concurrent updates, which are much easier to reason about. In a concurrent update situation, a lot of additional factors will add complexity to the problem, including the locking strategy, transaction isolation levels, or simply…

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The Difference Between SQL’s JOIN .. ON Clause and the Where Clause

A question that is frequently occurring among my SQL training‘s participants is: What’s the difference between putting a predicate in the JOIN .. ON clause and the WHERE clause? I can definitely see how that’s confusing some people, as there seems to be no difference at first sight, when running queries like these, e.g. in Oracle. I’m using the Sakila database, as always: — First query SELECT a.actor_id, a.first_name, a.last_name, count(fa.film_id) FROM actor a JOIN film_actor fa ON a.actor_id = fa.actor_id WHERE fa.film_id < 10 GROUP BY a.actor_id, a.first_name, a.last_name…

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Programming 

MongoDB vs SQLite – Difference between MongoDB and SQLite

In this article, you will learn about difference between MongoDB and SQLite. MongoDB MongoDB first version was released in 2009. It is the most reliable database used with Node.JS application. Its structure of saving the data is different because it stores data in a document which is like JSON. It uses the most popular document store database model. Schema created in this is powerful and flexible. High scalability, sharding and availability with built-in replication makes it more robust. Sharding is the capability which comes in use when database size becomes…

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java 

Hibernate Tip: Difference between @JoinColumn and @PrimaryKeyJoinColumn

The post Hibernate Tip: Difference between @JoinColumn and @PrimaryKeyJoinColumn appeared first on Thoughts on Java. Hibernate Tips is a series of posts in which I describe a quick and easy solution for common Hibernate questions. If you have a question for a future Hibernate Tip, please post a comment below. Question: Himanshu Srivastava asked today’s question on my YouTube channel: “What’s the difference between@JoinColumn and @PrimaryKeyJoinColumn? Also, should we use @PrimaryKeyJoinColumn or @JoinColumn?” Solution: The @JoinColumn and the @PrimaryKeyJoinColumn might seem very similar, but they are used in 2 different…

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