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Explain about primary key
Primary Key: It is one of the candidate keys that are taken to be the recognizing key for the entire table. E.g. although there are two candidate keys in the STUDENT table, the college would clearly use Roll as the primary key of the table.
The Internal or Physical Level The collection of files permanently stored on secondary storage devices is called as the physical database. The internal or physical level is t
What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
Which operations need the participating relations to be union compatible? A UNION, INTERSECTION and DIFFERENCE operations need the participating relations to be union compatibl
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
Describe the Menu based interfaces for web clients or browsing? Menu-Based Interfaces for Web Clients or Browsing - These interfaces present the user along with lists of option
DISADVANTAGES OF RDBMS
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
I need help for my Uni assignments
Explain the disadvantages of using DBMS There could be a few disadvantages of using DBMS. As DBMS requires computers, we have to invest a good amount in acquiring the hardwa
what is query processing?
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