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Posts on tips and tricks, using and learning about MySQL for database development and analysis.

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PostgreSQL vs MySQL: 7 syntax differences that break migrations

PostgreSQL vs MySQL: 7 syntax differences that break migrations

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4 min read
The Database Playground: Everything You Can Plug In and Tune in PostgreSQL and MySQL (Including AI Workloads)

The Database Playground: Everything You Can Plug In and Tune in PostgreSQL and MySQL (Including AI Workloads)

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37 min read
ROW_NUMBER vs RANK vs DENSE_RANK: one of them silently duplicates your Top-N

ROW_NUMBER vs RANK vs DENSE_RANK: one of them silently duplicates your Top-N

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4 min read
The NOT IN trap: why your SQL query returns zero rows

The NOT IN trap: why your SQL query returns zero rows

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3 min read
Moving off EventON: its timestamps aren't what they look like

Moving off EventON: its timestamps aren't what they look like

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4 min read
Moving off WP Event Manager: what's in your database and what breaks

Moving off WP Event Manager: what's in your database and what breaks

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3 min read
Moving off Modern Events Calendar: what's in your database and what breaks

Moving off Modern Events Calendar: what's in your database and what breaks

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4 min read
Database Concurrency 101: Optimistic vs. Pessimistic Locking

Database Concurrency 101: Optimistic vs. Pessimistic Locking

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3 min read
How I Structured a Java Library Management System with DAO and Service Layers

How I Structured a Java Library Management System with DAO and Service Layers

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8 min read
How I Built a Java Hotel Reservation System with JDBC and MySQL

How I Built a Java Hotel Reservation System with JDBC and MySQL

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9 min read
WHMCS 9.0: check your custom reports for double-counting

WHMCS 9.0: check your custom reports for double-counting

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6 min read
Is your WHMCS charging last year's EU VAT rate?

Is your WHMCS charging last year's EU VAT rate?

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7 min read
Specialization and Generalization in DBMS: Explained with Simple Examples

Specialization and Generalization in DBMS: Explained with Simple Examples

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4 min read
Stop Killing Your Database: The Power of Connection Pooling

Stop Killing Your Database: The Power of Connection Pooling

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2 min read
Why Your Node.js App Crashes Under Traffic: The Magic of Connection Pooling

Why Your Node.js App Crashes Under Traffic: The Magic of Connection Pooling

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3 min read
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