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Describe sequential file organization. Explain the rules for (i) Inserting a new record. (ii) Deleting an existing record. Ans:A sequential f
1 NF Normal Form The domain of attribute must add only atomic (simple, indivisible) values First normal form (Minimal Form or 1NF) is a normal form need in database normalizat
What is NULL? Simply NULL means not in value.
explain participation constraints with examples
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
er diagram on cosmetics.
write program
Discuss the term- Design Optimization We have seen various ways of representing the objects.The fundamental design model uses analysis model as the framework for implementati
What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row
Unrepeatable reads : Assume T7 reads X twice during its implementation. If it did not update X itself it could be very disturbing to see a dissimilar value of X in its next read. B
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