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In an ER diagram the ___shape specifies the Attibute and a ____ shape specifies the primary key attribute.

A. Oval; An oval with an underlined attribute

B. Circle; A circle with bolded attribute inside it

C. Diamond; A bolded attribute

D. Square; An attribute within the square

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. Cascading rollback is avoided in all protocol except
  2. An outstanding functionality of SQL is its support for automatic_____ to the target data.
  3. For using a specific database …………… command is used.
  4. What is data integrity?
  5. ____specifies a search condition for a group or an aggregate.
  6. If a transaction T has obtained an exclusive lock on item Q, then T can
  7. Which of the following relational algebra operations do not require the participating tables to be union-compatible?
  8. Union operator is a :
  9. The fact that all employees of a particular organization should not have salaries more than $10000 is…
  10. The data models defined by ANSI/SPARC architecture are
  11. Which two files are used during operation of the DBMS?
  12. The _____ category includes storage media that can be operated on directly by the computers central…
  13. In an ER diagram the ___shape specifies the Attibute and a ____ shape specifies the primary key attribute.
  14. Which of the following concurrency control schemes is not based on the serializability property?
  15. The one guideline to be followed while designing the database is
  16. In SQL, testing whether a subquery is empty is done using
  17. The ______ indexes are forced to store only record IDs in the data structure and require at least one…
  18. In E-R Diagram total participation is represented by
  19. Which one is correct statement?Logical data independence provides following without changing application…
  20. Which of the following is not a characteristic of a relational database model?
  21. Relational Algebra does not have
  22. The clause alter table in SQL can be used to
  23. _____ First proposed the process of normalization.
  24. Which of the following is true for network structure?
  25. It is an abstraction through which relationships are treated as higher level entities
  26. In a relational schema, each tuple is divided into fields called
  27. DFD stands for
  28. Wait-for graph is used for
  29. Which of the following relational algebraic operations is not from set theory?
  30. SQL server stores index information in the _____system table