1. javax.transaction.xa.XAResource
2. ACID
3. Dirty read, unrepeatable read, phantom read, 第一类丢失失更新, 第二类丢失失更新
4. Lock
Row (share, exclusive), Table(Row(share, exclusive), exclusive)
悲观锁:for update,乐观锁: @version
5. Isolate
Read uncommitted: NONE except 第一类丢失失更新
Read Committed: unrepeatable read, Phantom read, 第二类丢失失更新
Repeatable Read: Phantom read
Serializable Read: ALL
6. propagation, 7 kinds
1282

被折叠的 条评论
为什么被折叠?



