The graphical representation of a query is .

A. B-Tree

B. graph

C. Query Tree

D. directed graph

You can do it
  1. The ____ operator joins two or more conditions and displays rows only if that rows data satisfies all…
  2. The data models defined by ANSI/SPARC architecture are
  3. The metadata is created by the
  4. Maximum height of a B+ tree of order m with n key values is
  5. If the closure of an attribute set is the entire relation then the attribute set is a
  6. The collection of information stored in a database at a particular moment is called as ......
  7. A data type or format is specified for each _________
  8. In b-tree the number of keys in each node is than the number of its children.
  9. A logical schema
  10. Which of the following statement on the view concept in SQL is invalid?
  11. A _____ is used to define overall design of the database
  12. In E-R Diagram total participation is represented by
  13. The clause alter table in SQL can be used to
  14. In a multi-user database, if two users wish to update the same record at the same time, they are prevented…
  15. Which normal form is considered adequate for normal relational database design?
  16. It is an abstraction through which relationships are treated as higher level entities
  17. DBMS is a collection of _____ that enables user to create and maintain a database.
  18. The clause in SQL that specifies that the query result should be sorted in ascending or descending order…
  19. Wait-for graph is used for
  20. If a transaction T has obtained an exclusive lock on item Q, then T can
  21. The rule that a value of a foreign key must appear as a value of some specific table is called a
  22. Relations produced from an E-R model will always be
  23. The size of a data item is called its _______, which can be a field of some record or may be a larger…
  24. ______defines the structure of a relation which consists of a fixed set of attribute-domain pairs.
  25. The transactions like adding an employee, enrolling a student in a course are examples of _______
  26. The ______ language consists of SQL statements for operating on the data (insert, Modify, Delete) in…
  27. A list consists of last names, first names, addresses and pin codes. If all people in the list have…
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  29. By ______ an area on disk in certain ways, one can make it represent a bit value of either zero (0)…
  30. Cascading rollback is avoided in all protocol except