Discover the chaos that happens when multiple operations try to modify the same data at once, and how databases solve this problem.
Imagine you and your friend are both editing the same Google Doc at the exact same time. You're typing in paragraph 1 while they're deleting paragraph 2. Without proper coordination, you'd end up with a complete mess!
face this exact problem every millisecond. Multiple transactions (think of them as different users) are constantly reading and writing data simultaneously. Without proper rules, your bank account could show different balances to different people at the same time!
This is where properties come to the rescue. The 'I' in ACID stands for Isolation - it's like having traffic rules for database transactions.
Key Insight: Isolation levels are like traffic lights for your database - they control when transactions can 'go' and what they're allowed to 'see' while other transactions are running.
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