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Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
properties of derirable decomposition
Describe Participation Constraints? Participation Constraints - The participation constraint exacts whether the existence of an entity depends on its being related to another
In this practical assignment, we will run through a complete database application development cycle, starting with the schema design, from an initial data import to database applic
A file of employee have 10,000 blocks on a cylinder of a disk with characteristics r=8ms and btt=0.6ms I want to know the cost of read inthe file under following conditions for a q
non numeric literals
Have database built but having problems with some questions that go with the database
Explain the Role of a database administrator a. Defining the Schema The DBA describes the schema which consists of the structure of the data in the application. The DBA
Describe an data dictionary? A data dictionary is a data structure which keeps meta data about the structure of the database ie. the schema of the database.
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
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