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Describe the definition of a transaction in SQL
Ans: The SQL transaction starts implicitly. Transactions are finished by either Commit work that commits the transaction and starts a new one Rollback work that causes the transaction to abort.
If a program ends without either of these statements after that updates are either committed or rolled back and the selection is implementation dependent.
Create an entity relationship diagram, Database Management System
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please give me introduction to full data in D B M S in a short assignment
Define Timestamp ordering Ans In timestamp-based method, a serial order is made among the concurrent transaction by assigning to every transaction a unique nondecreasing number
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