How to Select Specific Columns in SQL?
When you start learning SQL, one of the first habits you pick up is using SELECT *. It works, and i...
Tag: MySQL
How to develop a secure PHP Login System (Complete Guide)
Building a secure login system in PHP isn't just about checking if someone typed in the right usern...
SQL for Data Analysis: Queries, Joins, and Real-World Examples
When you step into the world of data analysis, SQL quickly becomes one of your most powerful tools....
Query Optimization in SQL: Techniques and Best Practices
When I first started writing SQL queries, I honestly only cared about getting the correct output. I...
Database Normalization: From Messy Tables to Perfect Structure
When I built my first database years ago, I thought keeping everything in one big table was the eas...
Understanding ACID Properties in Database Transactions
When you're transferring money online, booking tickets, or making any critical transaction, ACID pr...
SQL Aggregate Functions: Summarize, Count, and Analyze Data
If you work with databases, you often need to turn large amounts of data into useful numbers. SQL a...
SQL String Functions From Basics to Advanced
When you’re working with databases, sooner or later you’ll face the need to clean, combine, or anal...
SQL Date and Time Functions: Tips, Tricks, and Examples
Working with SQL date and time functions is an essential skill for any database developer or analys...
SQL vs NoSQL Databases: Which one to chose?
Databases are a crucial part of any application. They are used to store various types of data, such...