Spring-data-jpa-duplicate-key-value-violates-unique-constraint Today

In databases like PostgreSQL, the sequence used to generate IDs can sometimes fall behind the actual maximum ID in the table (often after manual data imports), leading the application to propose IDs that are already taken. Strategies for Resolution

If you are manually assigning IDs to entities instead of using @GeneratedValue , you may inadvertently try to reuse an ID that is already present in the table. In databases like PostgreSQL, the sequence used to

To handle these violations gracefully, developers typically employ one of three strategies: In databases like PostgreSQL