What is RDBMS?
RDBMS = Software that stores your data in tables
Think of it like Excel but much more powerful!
Popular ones: MySQL, PostgreSQL
Good Things
Organized - Everything has a place. Like a tidy cupboard where you can find things easily.
Safe - Your data won't get lost or mixed up. The database protects it.
Many users - 100 people can use it at the same time without any problem.
Easy search - Find "students above 18" in just seconds.
Bad Things
Slow with huge data - When you have millions of records, it can slow down. Like searching a massive library.
Hard to change - Once you create the structure, changing it is tricky. Like adding rooms to a finished house.
When to Use?
Use for:
- Bank accounts
- Student records
- Online shopping
Don't use for:
- Storing videos/photos
- Social media posts
Remember This!
RDBMS = Organized + Safe + Searchable
Best for: Important data that needs to be accurate!
What's Next?
Let's see how SQL compares to NoSQL databases!