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What is a recovery scheme?
An integral part of a database system is a recovery scheme that can restore the database to the reliable state that existed before the failure.
What is an ER diagram? Why is it used in Database management system (DBMS)?
give some example real life situation where DBMS are most suitable
Which is the properties of entities? Attributes is the properties of entities.
Describe log based recovery The most usably structure for recording data base modification is the LOG the log is a sequence of log records recording all the update activities i
Single Valued Normalisation Codd in the year 1972 formed three normal forms (1NF, 2NF, and 3NF). These were based on functional dependencies between the attributes of a relati
What are the aggregate objects in the data dictionary? Views Match codes Lock objects.
WHAT IS SQL
Write a query that display ename annual salary and comm from emp table
prototype of a distributed information system for a national car part retail outlet chain.
Briefly explain each of the following database terms. Use no more than 2-3 lines for each term. 1. DBMS 2. Update Anomaly 3. Alias (referring to tables in SQL queries)
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