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What is Data Storage?
The storage structures and access methods used by database system are specified by a set of explanation in a special type of DDL called data storage-definition language.
I have to solve a problem using access
explain equi-join using illustration
Compare the Nested-loop join and block-nested loop join Ans: Nested loop join - It is costly as worst case cost, no. of block accesses needed is n r * b s + b r where b
Hi is anyone well versed in accounting information systems available now to help me work through an important assignment due tomorrow at noon?
What is meant by log-based recovery? The most widely used structures for recording database changes is the log. The log is a sequence of log records, recording all the update a
Define cardinality and participation constraints on a relationship type, completeness constraint on generalization. Ans: Cardinality defines the number of entities to wh
#questiontypes of keys examples..
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
Define weak and strong entity sets? Weak entity set: entity set that do not have key attribute of their own are known as weak entity sets. Strong entity set: Entity set that
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
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