KwickClips Databases and SQL · 39 sec · free
Where does your school store marks?
Short answer. In a database.
What keeps a train seat from being sold twice?
The reservation database.
Two real databases
| Where | Stores |
|---|---|
| School | marks, fees |
| Railways | seats, PNR |
Remember
| School: students, marks, fees |
| Railways: seats and PNR |
Where do you use a database every day? Your school stores students, marks and fees. Indian Railways stores seats and P N R numbers. One seat is never sold twice. Schools store records. Railways store seat bookings.
This clip is from the full lesson: Why Databases: Data, Information and the DBMS — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 10 Information Technology (402), CBSE Class 12 Computer Science (083), CBSE Class 11 Informatics Practices (065), CBSE Class 12 Informatics Practices (065)
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