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Consider the following four relational schemas. For each schema, all non-trivial functional dependencies are listed. The underlined attributes are the respective primary keys. Schema I: Field ‘courses’ is a set-valued attribute containing the set of courses a student has registered for. Non-trivial functional dependency: rollno → courses Schema II: Non-trivial functional dependencies: rollno, courseid → email email → rollno Schema III: Non-trivial functional dependencies: rollno, courseid → marks, grade marks → grade Schema IV: Non-trivial functional dependencies: rollno, courseid → credit courseid → credit Which one of the relational schemas above is in 3NF but not in BCNF?
You can validate an XML Schema document against its schema, just as you would any other XML document.
The document containing the XML schema for the XML output by SET STATISTICS XML is located at ______________
Which of the following statements regarding XML is/are True ? (A) XML is a set of tags designed to tell browsers how to display text and images in a web page. (B) XML defines a syntax for representing data. but the meaning of data varies from application to application (C) < Letter >, < LETTER > and < letter > are three different tags in XML. Choose the correct answer from the options given below:
Which of the following statements is/are FALSE? I. XML overcomes the limitations in HTML to support a structured way of organizing content. II. XML specification is not case sensitive while HTML specification is case sensitive. III. XML supports user defined tags while HTML uses pre - defined tags. IV. XML tags need not be closed while HTML tags must be closed.
The choice of XML technology, native XML versus XML view, generally depends upon the following factors?
MongoDB supports fixed-size collections called ____________ collections.
All collections have a unique ________ lock that allows multiple clients to modify documents in different collections at the same time.
What is the purpose of the `Collections.reverse()` method in the Java Collections Framework?
Which of the following object is used to describe the data, usually as part of the XML schema?