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Page 190 of my articles, tutorials, and thoughts
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How can I replace a hash key with another key?
# How to Replace a Hash Key with Another Key: A Complete Guide Have you ever encountered a situation where you needed to replace a specific key in a hash with another key? Maybe you have a hash with randomly named keys, and you want to rename them for con
optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
# 🤔 Getting Out of the (defined? foo) Mess in Rails Partial Templates So you've been a little naughty and used the `(defined? foo)` syntax in your Rails partial templates to set default values for local variables. It seemed to work fine, but now you find
Determine if ActiveRecord Object is New
# 🕵️♂️ Determining if an ActiveRecord Object is New Do you often find yourself wondering if an ActiveRecord object is new or has already been persisted? 🤔 Fear not, as we've got you covered! In this blog post, we'll tackle this common issue head-on and
Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
# **SELECT * vs SELECT column1, column2, column3, etc. - Which is Faster/Best?** There has always been a debate on whether to use `SELECT *` or `SELECT` followed by the specific column names when querying a database. While some argue that using `SEL
What resources exist for Database performance-tuning?
🔎 Looking to improve your database performance? Look no further! In this blog post, we'll explore a variety of resources that exist for database performance-tuning. Whether you're a beginner or an expert, these resources will help you understand common is
Do rails rake tasks provide access to ActiveRecord models?
# 🚀 Why Rails Rake Tasks Don't Provide Access to ActiveRecord Models So, you're trying to create a custom rake task in your Rails application, but it seems like you don't have access to your models? You might be wondering why this is happening, especiall
How can I get column names from a table in Oracle?
# 📝Tech Blog: Getting Column Names from a Table in Oracle 📊 **Are you struggling to fetch column names from a table in Oracle? 🤔** If you've been searching for the answer to this question, you're not alone! Many developers face the challenge of retrie
Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
# Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL? Are you struggling to simulate the `CREATE DATABASE IF NOT EXISTS` functionality in PostgreSQL? Don't worry, you're not alone! It's a common issue for developers who are used to working with MySQL,
Easiest way to copy a table from one database to another?
# Easiest Way to Copy a Table from One Database to Another 🔄💻 Have you ever found yourself stuck in a situation where you need to copy a table from one database to another, but the databases are under different users? 🤔 Don't worry, we've got you cover
How to configure postgresql for the first time?
# How to Configure PostgreSQL for the First Time? 💻🔧 So, you've just installed PostgreSQL and are excited to dive into the world of databases 🌍. But wait, there's a bump on the road! When you try to create a new database or user, you encounter the drea