Category: MySQL
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How Can I Prevent SQL Injection Attacks in My PHP Application?
As a developer, one of the critical challenges I often face is ensuring that my applications are secure. A prevalent security vulnerability that I encounter, especially in web applications, is SQL Injection. This type of attack can have devastating consequences including unauthorized access to sensitive data, and even complete destruction of the data. Let’s discuss…
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How Do I Efficiently Retrieve the Latest Messages in SQL Where Users Are Either Senders or Recipients?
As a developer, when working with databases containing user messages, it’s common to face the challenge of efficiently retrieving the latest messages based on specific requirements. The issue often becomes more complex when involving encrypted or hashed user information. Let me walk you through the problem I faced and how I approached solving it effectively…
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How Can I Correctly Format Phone Numbers with Multiple Plus Signs in SQL?
As someone who frequently works with database management, I often deal with data normalization issues, including phone number formatting. Recently, I encountered a scenario where phone numbers in a database were inconsistently formatted, some with multiple plus signs (+). Correcting this to ensure a uniform format is crucial for data integrity and ease of use.…
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Efficiently Storing Large Files in MySQL Database
Handling Large Files in MySQL with Laravel: A Practical Approach Recently, I encountered a challenging scenario while working on a Laravel project that required storing a significantly large file (about 500MB) directly into a MySQL database. The file in question was a zip containing multiple PDF documents. Ideally, storing such large files on a filesystem…
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Troubleshooting Table Relations in Laravel
Handling Data Integrity Between Users, Products, and Orders in a Canteen Management System In developing a robust canteen management application using Laravel, a common challenge I faced was dealing with the integrity and consistency of data, especially when deleting products that have been ordered by users. I needed a solution that would allow the system…
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Unwanted Table Creation Issue: Laravel 11 Crashes App
Troubleshooting Laravel Migration Issues: Missing Session Table Recently while updating my project to Laravel 11, I found myself in a challenging situation that initially stumped me. I had decided to delete all the existing migrations and removed my database entirely with the hope of starting afresh. This might seem drastic, but at that moment it…
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Troubleshooting: Unable to Extract the ID
How I Solved the “Undefined Array Key” Error in My CRUD Application Creating a CRUD (Create, Read, Update, Delete) application is a common task for many developers, and it often involves interacting with databases using user inputs. Recently, I encountered a snag while working on a CRUD form in PHP. I was trying to manipulate…