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Define Thomas write rule
Thomas' write rule: The Thomas' write rule is a modification of timestamp-ordering protocol for concurrency control. Assume that transaction Ti issues write (Q) and TS (Ti) is its timestamp after that the subsequent actions are taken depending on TS(T ) and the read-write timestamps of the data item Q:
What are domain constraints? A domain is a set of values that might be assigned to an attribute .all values that appear in a column of a relation must be taken from the similar
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The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
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Which of the operations constitute a basic set of operations for manipulating relational data? Relational algebra operations constitute a basic set of operations for manipulati
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