Computer Science / Unit 8 CS 0426 short lesson, about 20 seconds
"ACID Costs Nothing"
Captions available
The idea
The ACID guarantees are purchased, not free — full isolation in particular requires significant additional processing time, and treating the properties as costless hides a real engineering trade.
In practice
A rail reservation system pays in speed for every simultaneous booking it keeps honest.
Where people slip
Reliability has a bill; someone chose to pay it.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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