![5.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.0.1.RELEASE documentation 5.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.0.1.RELEASE documentation](https://terasolunaorg.github.io/guideline/5.0.1.RELEASE/en/_images/ExclusionControl-problem1.png)
5.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.0.1.RELEASE documentation
![5.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.0.1.RELEASE documentation 5.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.0.1.RELEASE documentation](https://terasolunaorg.github.io/guideline/5.0.1.RELEASE/en/_images/Pessimistic-lock.png)
5.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.0.1.RELEASE documentation
SELECT - FOR UPDATE NOWAIT hangs if lock cannot be acquired [DATAJPA-1259] · Issue #1592 · spring-projects/spring-data-jpa · GitHub
![java - PESSIMISTIC_WRITE locking not working with Spring JPA Repository and Oracle 12c - Stack Overflow java - PESSIMISTIC_WRITE locking not working with Spring JPA Repository and Oracle 12c - Stack Overflow](https://i.stack.imgur.com/hs29Q.png)
java - PESSIMISTIC_WRITE locking not working with Spring JPA Repository and Oracle 12c - Stack Overflow
SQL Daily on Twitter: "Avoid dirty writes in #database transactions by locking the rows with SELECT ... FOR UPDATE This waits to get the lock, which could take ages! Use NOWAIT to
![java - PESSIMISTIC_WRITE locking not working with Spring JPA Repository and Oracle 12c - Stack Overflow java - PESSIMISTIC_WRITE locking not working with Spring JPA Repository and Oracle 12c - Stack Overflow](https://i.stack.imgur.com/3GP9r.png)
java - PESSIMISTIC_WRITE locking not working with Spring JPA Repository and Oracle 12c - Stack Overflow
![How to handle concurrent updates with optimistic and pessimistic locking in JPA | by Jitesh Shivnani | ZestMoney Blog How to handle concurrent updates with optimistic and pessimistic locking in JPA | by Jitesh Shivnani | ZestMoney Blog](https://miro.medium.com/v2/resize:fit:1400/1*Fzx7x2KpWjsESu0mjdcPXw.png)
How to handle concurrent updates with optimistic and pessimistic locking in JPA | by Jitesh Shivnani | ZestMoney Blog
![5.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.0.1.RELEASE documentation 5.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.0.1.RELEASE documentation](https://terasolunaorg.github.io/guideline/5.0.1.RELEASE/en/_images/update-for-db-line-lock.png)