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Explain Network Model in DBMS?
Network Model - It was formalised within the late year of 1960s through the Database Task Group of the Conference on Data System Language (DBTG/CODASYL). It uses two various data structures to represent the database entities and relationships among the entities, namely record type and set type. In the network model, the relationships as well as the navigation by the database are predefined at database creation time.
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
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
define anomalies and different types of anomalies with example
What does data dictionary is a special file contains ? The data dictionary is a special file contain The name of all fields in all files.The width of all fields in all files an
What are the drawbacks of File Oriented System in details?
#question.ERD of any car
Need an expert in ER database theoretical and modeling database system Project Description: Need an expert in ER database theoretical and modeling database systems? Skills
What is the main difference between read-only and update methods? A read-only method does not affect the values of a variable in an object, whereas an update method may alter t
What are uncommitted modifications? The immediate-modification technique permits database modifications to be output to the database whereas the transaction is still in the act
what is the importance of back up files
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