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Page 210 of my articles, tutorials, and thoughts
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Run PostgreSQL queries from the command line
# How to Run PostgreSQL Queries from the Command Line 💻🐘 So you've inserted some data into your PostgreSQL database, and now you're eager to display the entire table with all its rows, columns, and data. Luckily for you, running queries from the command
How to remove a field completely from a MongoDB document?
# How to Remove a Field Completely from a MongoDB Document 💥 So, you have a MongoDB document and you want to bid farewell to a specific field. Whether it's because you no longer need it or it's causing issues, we've got you covered! Let's dive into how y
MongoDB or CouchDB - fit for production?
# MongoDB or CouchDB - Fit for Production? 🤔 Are you considering MongoDB or CouchDB for your production environment? It's natural to have concerns about adopting new technology, especially when they are relatively young projects. But don't worry, we've g
Can I have multiple primary keys in a single table?
# Can I have multiple primary keys in a single table? 🤔🔑 **Short answer**: No, a table can only have one primary key. 🚫 Now that we've got that out of the way, let's dive deeper into why this is the case and explore alternative solutions for your need
What"s the Hi/Lo algorithm?
🔍Unlocking the Mystery of the Hi/Lo Algorithm 🔐 Have you ever stumbled upon the mystical Hi/Lo algorithm while perusing the depths of NHibernate documentation? 🤔 Well, fret no more, dear reader, for we shall shine a light on this enigmatic algorithm an
List of standard lengths for database fields
🔐 Unlocking the Mystery: A Guide to Database Field Lengths 📊 💭 Have you ever found yourself scratching your head while designing a database table, wondering how long each field should be? 😕 It's a common dilemma, and we are here to demystify it for y
How can I stop redis-server?
# How to Stop Redis-Server and Start Fresh So, you're trying to start a new Redis server, but you're getting an error message saying "Opening port: bind: Address already in use". It seems like there's a Redis server already running on your system, and you
Room - Schema export directory is not provided to the annotation processor so we cannot export the schema
📝 **Title**: Room - Schema Export Directory Issue: How to Export Schema in Android Database Component Room 👋 Hey there, Android developers! Are you using the awesome Android Database Component Room in your app? 📱💪 If yes, then you might have come acro
Database development mistakes made by application developers
# Common Database Development Mistakes and How to Avoid Them 💾💥 Are you an application developer who's been hitting your head against the wall trying to figure out why your database isn't working as expected? Don't worry, you're not alone! Database deve
Kill a postgresql session/connection
📝 **Tech Blog: How to Kill a PostgreSQL Session/Connection** 🔌🐘 Do you find yourself in a sticky situation where you need to kill all your PostgreSQL connections? You're not alone! Many database administrators and developers have stumbled upon this pes