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Determine the Disadvantages of file based systems
Some of the disadvantages of file based systems are like this:
the of super market system done in database
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
Order by clause By using this rows can be sorted It is used in the last portion of select statement By default it gets ascending order DESC: is used
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
FDs in Relationships: Enrols Relationship: None as it is many to many Teaches Relationship : Course code → Instructor Instructor → Course code The next question is:
List any two disadvantages of a database system ? The disadvantages of database system are: • Database systems are difficult, complex, and time-consuming to design. • Substanti
Need For Distributed Database Systems A distributed database is a set of database kept on multiple computers that appears to applications as a one database. As a result, an app
What is the function of IO/M signal in the 8085? It is a status signal. It is used to differentiate among memory locations and I/O operations. When this signal is low (IO/M = 0
What is object containment? References among objects can be used to model dissimilar real-world concepts.
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