Card 2: Storing and Retrieving Data

Now that you know what a database is, let's learn how to add and find information. Like organizing ration cards in a village office.

Adding Data

Story: Insert new records, like adding a family's details to the ration database.

Fun Fact: In Andhra Pradesh, PDS adds new beneficiaries regularly.

Finding Data

Story: Use queries to search. "Show families in Vijayawada with 4 members."

Fun Fact: Farmers query crop data to plan sales.

Updating Data

Story: Change info, like updating a phone number when someone moves.

Fun Fact: Banks update balances instantly in databases.

Key Technical Terms

Knowledge Check

What do you use to find data in a database?