# last pog? https://webwhiteboard.com/board/WgZxruoF2N1EKUFuJ7JOSsRJ6PfVyXBS/ ## Zadanie 1 ![](https://hackmd.io/_uploads/B1fPUioLh.png) ## Zadanie 2 ![](https://hackmd.io/_uploads/BJSAtoiL3.png) Doc https://www.postgresql.org/docs/current/transaction-iso.html ### a) repeatable read ![](https://hackmd.io/_uploads/By5AFjiIh.png) ### b) read commited lub serializable jesli nie mamy wywalone w lost update ![](https://hackmd.io/_uploads/ByQHRjjI2.png) ### c) serializable? ![](https://hackmd.io/_uploads/rk_PM3jLh.png) ### d) serializable ![](https://hackmd.io/_uploads/rJdsSnjUh.png)