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Ryan 2023-06-14 15:14:30 +08:00
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@ -1006,7 +1006,6 @@
- There are attributes that apply to some (but not all) instances of an entity. - There are attributes that apply to some (but not all) instances of an entity.
- The instances of a potential subclass participate in a relationship unique to that subclass. - The instances of a potential subclass participate in a relationship unique to that subclass.
- DONE Block 3 - DONE Block 3
collapsed:: true
- DONE DB transaction management - DONE DB transaction management
- DONE ACID (Atomicity, Consistency, Isolation, Durability): A set of properties that guarantee the reliability and integrity of database transactions. - DONE ACID (Atomicity, Consistency, Isolation, Durability): A set of properties that guarantee the reliability and integrity of database transactions.
- Atomicity: The property that ensures a transaction is treated as a single, indivisible unit of work. It either executes all its operations successfully or rolls back to the initial state if any operation fails. - Atomicity: The property that ensures a transaction is treated as a single, indivisible unit of work. It either executes all its operations successfully or rolls back to the initial state if any operation fails.