UUIDv7 takes the best of two worlds for distributed systems: auto-incrementing ID and UUIDv4. It keeps page splits and fragmentation out of primary key index, while also maintaining cryptographically secure randomness to prevent insecure direct object reference. (This obsoletes UUIDv4, which only tends to bloat every index and cost more with each write operation.)

https://www.youtube.com/watch?v=JbdvmQ_HgJo

#UUID #UUIDv7 #UUID7 #UUIDv4 #UUID4 #AutoIncrement #ID #database #databases

How to Stop AUTO_INCREMENT From Reusing After Restart

Recycled IDs can break your caching.

#mysql #autoincrement #reuse #howto #ids #gotcha

https://www.youtube.com/watch?v=AMm1JExqDbU

How to Stop AUTO_INCREMENT Gaps From Breaking IDs

Rollbacks still consume auto increment values.

#mysql #autoincrement #ids #howto #transactions #gotcha

https://www.youtube.com/watch?v=sGsPlUnRt_s

Auto-Increment IDs Have GAPS Forever?!

IDs are BROKEN! Failed INSERT consumes the auto-increment ID! User #1, skip #2, User #3! Your IDs have permanent GAPS! This breaks ID-based logic! Watch this chaos!

#sql #sqlbug #autoincrement #primarykey #idgaps #failedinsert #sqlfails #productionbug #sqlshorts #sqlwtf #identitycolumn #dataintegrity

https://www.youtube.com/watch?v=qF3obGJL_MY

Hard to Kill: Why Auto-Increment Primary Keys Can Make Data Sync Die Harder

https://www.jocheojeda.com/2025/01/22/hard-to-kill-why-auto-increment-primary-keys-can-make-data-sync-die-harder/

#database #dataSynchronization #primaryKeys #guid #sqlServer #mysql #postgresql #oracle #autoIncrement #databaseDesign #distributedSystems #entityFramework #xpo #identityColumns #sequences #databaseArchitecture #dataIntegrity #databasePerformance #uniqueIdentifiers #systemDesign