#Mysql

Boost your database skills with our interactive MySQL tutorial. Learn to simplify complex queries using Views and perform powerful data analysis with Window Functions.

My baby-name site started life on ASP.NET with a MSSQL backend. It worked. The reason I rewrote the...

Choosing the right combination of web backend and database technology can make or break your...

According to the latest DB-Engines ranking, PostgreSQL firmly holds the fourth position globally and...

Six Eloquent query patterns that silently bypass MySQL indexes on large tables, with EXPLAIN output, the exact SQL each one generates, and the fix for each.

MySQL's 20-year-old view subquery restriction (Bug #11472) finally has a reported fix. Here's how to refactor views with CTEs and nested views today.

Originally published on the Sienovo Engineering Blog. Sienovo is the overseas brand of 深圳信迈 (Shenzhen...

I installed mysql and there was a major error in the installation so i had to uninstall and reinstall. When i did that however it deleted all my local daved game files (despite those being in a different directory) and now hundreds of hours of data is…

I have a VM (for ease lets name it ALPHA) with multiple instance of MySQL. Each instance have their own user, my.cnf, datadir. I used systemd. Not docker due to the requirement being suitable.…

connect_error) { die("Connection failed: " . $conn->connect_error); } $message = ""; if ($_SERVER["REQUEST_METHOD"] == "POST") { $serial = $_POST["serial"]; $book = $_POST["book"]; $name = $_POST["name"]; $email = $_POST["email"]; $phone =…

We had some bugs in our web application and it led to bad data entering the database and eventually crashing our service. It was happening intermittently and had low priority so it wasn't patched quickly enough.…

Hi friends, Does anyone have any idea or practical guide to how I can manage the MySQL server with non root OS user as Data base Admin? For example: I applied patches and for re-start the server I have to switch as a root user or sudo before doing it..…

SKIP LOCKED + a unit-per-row model + composite primary keys made it work. But the real lesson: the bottleneck wasn't CPU or queries — it was connection usage in code we'd never instrumented.…

Hi everyone, I have been using MySQL for many many years now and one thing that has always frustrated me is how long it takes to import a database.…

Anybody else having this issue? Pin 9.7 LTS to my Ubuntu 22.04 LTS repo: wget https://dev.mysql.com/get/mysql-apt-config_0.8.39-1_all.deb sudo dpkg -i mysql-apt-config_0.8.39-1_all.deb Selected 9.7 LTS in step above, now install 9.7 LTS: sudo apt update…

Brushing up on my Data Analytic. As I was videos they say to use mySQL. However in college, used SQL. In job applications it generally says SQL too. So fine to just download SQL. (Used thru Sublime Text) submitted by /u/darkShadow90000 [link] [comments]

I have transactions with decreasing amount if I ran with bash command or node.js it will have not correct data but in terminal it go to deadlock. When I use FOR UPDATE it is all correct. Can someone explain me? Thanks.…

There are Absolutely Zero Mysql Jobs open right now and slowly im cracking open that PostgresQL manual and checking out the internals after DBA ing over a decade of MYSQL. submitted by /u/apachebeard83 [link] [comments]

Database deadlocks silently kill Magento 2 performance. Learn what causes them, how to detect them in MySQL logs, and proven strategies to prevent them in production.

SQL provides powerful built-in functions that help us analyze, summarize, and manipulate data easily....