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What are the two approaches to store relations in distributed database?
a) Replication
b) Fragmentation
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
Explain the EXISTS and UNIQUE functions of SQL. Give an example for each? EXISTS: The EXISTS function takes one parameter that is a SQL statement. If any records exist which
Explain the Strategy of Database Planning ?
explain at least five widly used case tools
INTRODUCTION Databases and database systems have become an essential part of our daily life. We encounter many activities that involve some interaction with a database almost
List the data structures implemented by the storage manager. The storage manager executes the following data structure a) Data files b) Data dictionary c) indices
The scenario You have been approached to design and implement a prototype of a distributed information system for a national car part retail outlet chain. The company comprises
examples of fields in a database
differences between a classified catalog and a dictionary catalog
What is difference between TRUNCATE and DELETE? - Truncate can't be rolled back whereas Delete can be. - Truncate keeps the lock on table whereas Delete keeps the lock on ea
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