Daniel

• Unit Test

Ken

• index 優缺
• join
• primary key, unique, fk
• pk needed ?
• varchar vs char
• full table scan and 如何避免
• db lock
• oracle vs mysql, add index, choose index, load balance, partition, online
• redis vs rdbms, hot data, slow, data loss, lock
• java 8 lambda
• spring tx, propagation
• 系統慢 功能慢
• log大 換版

Owen

• Unit Test

Vincent

• Spring