Which of the following refers to the number of attributes in a relation? DBMS
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In the relation model, the relation are generally termed as ________
SQL Query to delete all rows in a table without deleting the table (structure, attributes, and indexes)
Which one of the following commands is used for removing (or deleting) a relation forms the SQL database?
DELETE FROM r; where r is relation. This command performs which of the following action?
To remove a relation from an SQL database, we use the ______ command.
If every non-key attribute is functionally dependent on the primary key, then the relation will be in :
12) What is the relation calculus?
The ______ clause allows us to select only those rows in the result relation of the ____ clause that satisfy a specified predicate.
Which of the following refers collection of the information stored in a database at a specific time?
Which one of the following refers to the total view of the database content?
The term "Data independence" refers to____
Count function in SQL returns the number of
An attribute A of datatype varchar(20) has the value “Avi” . The attribute B of datatype char(20) has value ”Reed” .Here attribute A has ____ spaces and attribute B has ____ spaces .(i.e the total number of utilized space by A,B)
Which of the following is an example of a DBMS
Which of the following is a property of database
Which of the following statements contains an error?
Which of the following is not a DBMS despite having database capabilities:
Which of the following is NOT Advantages of DBMS
Which of the following are characteristics of a DBMS
Which of the following is the most important feature of DBMS: