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What does the cardinality ratio specify?
Mapping cardinalities or cardinality ratios state the number of entities to which another entity can be associated. Mapping cardinalities must be one of the following:
One to one
One to many
Many to one
Many to many
Process of normalization is the integral part of designing a database. Justify this statement with suitable database design
Define Database layer? The database layer defines the data formats used in the database.
Differentiate between a subquery and a join If we need to acquire information from one or more tables after that either subquery or join can be used. If the columns which are t
The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
4. Describe three ways to handle missing field values
Need a sample of a clinic database relationships
All edges of a cube are expanding at a rate of 6 centimeters per second. How fast is the surface area changing when each edge is (a) 2 centimeters and (b) 10 centimeters?
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
The ER diagram clearly showing the additional tables you have implemented. SQL table creation scripts for the tables you have set up. SQL scripts showing the sample data you
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