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A View may be defined of as a virtual table, that is, a table that does not really exist in its own right but is instead inferred from one or more underlying base data table. There is no stored file that direct shows the view instead a definition of view is loaded in data dictionary. Restructuring and growth of base tables is not shown in views. Thus the view may insulate end users from the effects of developing and growth in the database.
Which database level is closest to the users? External database level is closest to the users.
Why do so various organizations use MySQL? Advantages: Open source Highly efficient Offers a high scalability in terms of size and connectivity. Highly prote
What is the role of ORDER By Clause? ORDER BY clause: The ORDER BY clause permits you to sort the records in your result set. The ORDER BY clause can just be used in select s
The database files accept the actual data and are typically the biggest in size. Depending on their shape, the tables for all the user operation can go in one database file-but
While sorting, if the main storage available is not enough, the system writes data to an external help file. The SAP profile parameter, which determines DIR_SORTTMP
In which form of relational database developer refers to a record? In a tuple form of relational database developer refers to a record.
FDs in Entities : Student entity : Enrolment number → Student name, Address Course Entity :
Advantages and disadvantages of icloud based storage
what is the need of a log in dbms
What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
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