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Illustrate how you can use QBE to perform logical AND and OR operation
Write short notes on data ware housing? Data ware housing applications needs the transformation of data from many sources into a cohesive reliable step set of data configured a
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
Describe the two types of methods for retrieving rows in Python? Fetchone()- Returns the next row as a sequence Fetch all()- Returns the entire result set like a strin
explain concept of decomposition?
statical data
Attribute Preservation This is a easy and obvious necessity that includes preserving all the attributes that were there in the relation that is being decomposed.
WHAT IS MEANT BY E-R MODEL
What is Management System? A management system is a set of rules and process which help us to create organize and manipulate the database. It also helps us to add, change delet
Explain three main attributes of data.
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