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Deadlock prevention techniques aim to avoid deadlocks by enforcing strict lock ordering or using timestamp-based protocols.
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Primary-site replication defines exactly one primary copy of a relation, with others being secondary copies
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SORT MERGE JOIN has cost (asymptotic): O(M log M) + O(N log N) + O(M+N)
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A foreign key is a key used to link two tables together
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Read committed isolation level guarantees that a transaction reads only committed data.
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Unrepeatable reads lead to a transaction reading different data values in multiple reads within the same transaction, due to modifications by other concurrent transactions.
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Examples of Serializable isolation level include scenarios where funds are double-spent due to concurrent transactions in a banking system
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MySQL only supports ASCII text data, not Unicode.
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Two transactions are NOT in conflict if they only read data.
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The keyword 'user' in the REVOKE command specifies the user from which the privileges are revoked.
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