07 When Databases Lie Transactions Explained

Summary

What happens when two users update the same data at the same time? A ACID are four properties of relational Dive into the world of distributed Dive into the core principles that ensure data reliability in Anjali in Guwahati sends Bhaskar in Jorhat ₹1000, and then the power goes out. Her balance dropped, his never rose. Alice's card got declined — but the sneaker was already taken from stock. Half a purchase. That's what All or nothing: if power cuts during a bank transfer, ACID cancels the whole 00:00 Theory 02:12 Example 08:02 Practical Ever wondered how data stays safe and consistent online? 1 unit left in stock. Two requests land in the exact same 40 milliseconds. Both check the stock, both see 1, and both sell. You just ...