Karteikarten
client server databases
Karten in diesem Stapel (6)
- 1client server databasesdatabase is on a remote server and clients access it simultaneously
- 2lost update problemwhen the same record is updated by different users simultaneously
- 3record locksat the beginning of the transaction a lock is applied meaning no other changes can be made while that transaction is taking place once its over the lock is released
- 4serialisationtransactions are queued and are completed one after another
- 5timestamp orderingthe transactions have a timestamp attached they are then queued in order of their timestamps if the transaction has a later timestamp it will be aborted
- 6commitment orderingtransactions are executed by order of priority. this could result in dead locks so the query is locked until any dependant queries are complete
Informationen
- Beschreibung
- A level Computing (4.10 Databases) Karteikarten am client server databases, erstellt von Rose Wakeford am 19/05/2026.
- Erstellt von
- Rose Wakeford
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