sql

(because sometimes you want every possible combination of rows) 🔧 Quick Syntax SELECT columns FROM table1 CROSS JOIN table2; This […]

(because sometimes your data needs to have a conversation with itself) 🔧 Quick Syntax SELECT a.columns, b.columns FROM table_name a,

(because sometimes you need everything from both sides) 🔧 Quick Syntax SELECT columns FROM table1 FULL JOIN table2 ON table1.column

(because sometimes you need everything from the other side, even if there’s no match) 🔧 Quick Syntax SELECT columns FROM

(because sometimes you want everyone… even if they didn’t show up) 👀 Imagine You Have These Two Tables 🧑 employees

(a clean way to combine data where both sides match up) 👀 Let’s say you have two tables: 🧑 customers

(because real-world stuff lives in more than one place) 👀 Picture This… You’ve got two tables: 🧑 users table: user_id

(because your table deserves better than random junk data) 👀 Real-World Setup First Let’s say you’re creating a users table:

(because age ain’t text, and names aren’t numbers) Let’s say we’re building a users table like this: id name email

(because sometimes you just want a fresh start) Quick Syntax TRUNCATE TABLE table_name; You’re telling SQL: “Clear out all the