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Showing posts from April, 2022

Become An Efficient Programmer

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Work Efficiently - Photo by Alexandr Podvalny on Unsplash As all of the industry around the world digitizes their businesses, there’s a huge demand for more software developers. A very labor-intensive job that requires focus, sitting for hours and staring at the LCD screens, sometimes overlaps with the weekends, not that it’s wanted but because the task requires an excessive amount of time. Promises of a good salary and stable career path, people rush trying to school themselves and even their children to enter the Tech world, which is still not too late yet may be on the brink of decline, as AI now can perform to write their own codes, and Developers are in danger of being replaced. I remembered not so long ago, about 8 years ago, my first professional job as a software coder began. Not a pleasant year being very junior, in any industry. I had to have a big brave face to not only face very mad clients but also my coworkers and myself, my inner thoughts telling me that I should've...
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ERROR 1348 Column Password Is Not Updatable When Updating MySQL Root Password

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MySQL and MariaDB password As already mentioned in the title of this blog, this error message sometimes occurred when we are trying to update our root password database, either MySQL or MariaDB, The error says: ERROR 1348 (HY000): Column 'Password' is not updatable This is because if we use this SQL command to update our database root password, and it turn out to be Restricted by MySQL to use update on mysql database. UPDATE mysql.user SET Password=PASSWORD('1234') WHERE User='root'; The solutions for MySQL Error1348 So you can not update a user password using Update commands, to update the password, use ALTER commands instead. like the following. ALTER USER 'root'@'localhost' IDENTIFIED BY '1234'; And then you need to do the flush privileges to commit previous queries (that alter command above) into the system, simply do like this. flush privileges; So now you have your root with password 1234. Although it is recommended to...
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How To Create Spring Boot Project Using Netbeans

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Spring Boot is a handy tool that simplifies the development of Spring Framework applications by reducing the need for cumbersome configuration. In this tutorial, I'll guide you through creating a Spring Boot application using the Netbeans IDE. While you can certainly create a Spring Boot application in Netbeans manually, it's much easier with a plugin designed for Spring development. Here's a step-by-step guide to get you started: 1. Install the Spring Boot Plugin: Open Netbeans and navigate to the Tools menu. Click on "Plugins." Once the Plugins window opens, select the "Available Plugins" tab. Look for the "Nb SpringBoot" plugin, then install and activate it. 2. Create a New Spring Boot Project: After restarting Netbeans IDE, you can create a new project with Spring Boot. Go to File > New Project. Under Categories, select Maven, then choose "Spring Boot Basic." 3. Add Dependencies: With your new project created, open the po...
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Spring Kafka - How to use ReplyingKafkaTemplate send and reply synchronously

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Microservice Spring with Apache Kafka Today, I want to share how to use Kafka. It's quite interesting once you get the hang of it, and I hope my explanation will make it a bit easier for you. So, Kafka is primarily known as an asynchronous messaging queuing system. This means it allows different parts of your application to communicate with each other without waiting for immediate responses. However, there are times when you might need a more immediate reply from another service in your project. Luckily, Kafka can handle this too. Here’s how it works: The client side sends a message to the server side via Kafka. This message includes a special identifier in the Kafka header request, known as KafkaHeaders.CORRELATION_ID, along with a topic where the server should respond. The server, after processing the request, sends a message back to the same topic with the same correlation ID. This way, the client knows that the message is a response to its initial request and can act accordingl...
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