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[DMDB] Add concurrency control and recovery

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Oops, luckily still figured out that that was missing...
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janishutz
2026-07-25 18:58:39 +02:00
parent 45b3f178a7
commit c82ceca4e0
29 changed files with 475 additions and 22 deletions
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semester4/dmdb/parts/05_concurrency-control-recovery/00_transactions.tex
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\subsection{Transactions}
Transactions are accesses to the database with the purpose of \textit{modifying the data}.
The focus is of course on correctness, recovery and state management.
Transactions typically are expensive compared to queries due to the focus on correctness.
This means we need to employ concurrency control (ensuring data remains consistent with transactions and queries running at the same time,
definition of consistency, correctness, conflicts and problematic situations, as well as locking).
We furthermore want to implement recovery, to ensure that data remains consistent even when unexpected failures occur.