Which one feels easier?
PostgreSQL 🐘
SELECT name,department,ROUND((salary*12)/100000,1) FROM employees;
MongoDB 🍃
db.emps.aggregate([
{$project:{name:1,department:1,yearly_salary_in_lakhs:{$divide:[{$multiply:["$salary",12]},100000]}}}])
#PostgreSQL#MongoDB#Backend
Day 09 – Services & Background Tasks.
Learned how systemctl works and how production apps are managed.
Understood the difference between processes and services.
#Linux#Backend
Day 06 of learning Linux.
Focused on networking and ports.
Learned about IP, ports, DNS, and tested APIs using curl.
Worked with ss, netstat, ping, nslookup and checked port conflicts.
#Linux#Backend#Networking
Day 05 of learning Linux.
Practiced process management and system monitoring:
ps, top, kill, free, nproc.
Also combined find, grep, pipes and redirection in a small lab setup.
Getting more comfortable working in the terminal.
#Linux#Backend#DevJourney
Day 04 of learning Linux.
Practiced combining find and grep for real search scenarios.
Worked with:
- file size and time filters
- permission-based search
- recursive grep
- deleting old log files safely
#Linux#Backend#DevJourney
Day 03 of learning Linux.
Practiced find and grep commands.
Learned how to search files by name, size, user, permission,
and how to filter logs using grep (count, exact match,
multiple keywords, recursive search).
#Linux#Backend#DevJourney
Day 02 of learning Linux.
Learned about permissions and ownership:
ls -l, chmod (numeric & symbolic), directory permissions.
Tested different permission combinations and understood
how read, write and execute work for files vs directories.
#Linux#Backend#DevJourney
Started learning Linux.
Practiced basic terminal commands:
pwd, cd, ls, cp, mv, touch, rm
cat, less, head, vim
Trying to get comfortable working in the terminal every day.
#Linux#Backend#DevJourney
Wrote a blog on React Hooks.
Mastering React Hooks — a practical guide to the most commonly used React Hooks with real-world examples.
🔗 https://t.co/pzhpmbfWei
#ReactJS#WebDevelopment