비관적락

낙관적락

2번의 갱신 분실 문제 (Second Lost Updates Problem)

References

• https://sabarada.tistory.com/175
• https://unluckyjung.github.io/db/2022/03/07/Optimistic-vs-Pessimistic-Lock/
• https://k3068.tistory.com/92
• https://steady-coding.tistory.com/607