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Relational Algebra is

A. Data Definition Language .

B. Meta Language

C. Procedural query Language

D. None of the above

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  1. SQL server stores index information in the _____system table
  2. According to the levels of abstraction, the schema at the intermediate level is called
  3. In multiple granularity of locks SIX lock is compatible with
  4. Immediate database modification technique uses
  5. Processed data is called _____
  6. Which of the following is true for network structure?
  7. The graphical representation of a query is .
  8. Grant and revoke are _____ statements.
  9. A relation is in attribute of other composite key. if an attribute of a composite key is dependent on…
  10. A weak entity has an ______ dependency on its owner entity, which can be used for both ON UPDATE and…
  11. The metadata is created by the
  12. Assume transaction A holds a shared lock R. If transaction B also requests for a shared lock on R.
  13. _____ First proposed the process of normalization.
  14. _____ command can be used to modify a column in a table
  15. A logical schema
  16. In an E-R diagram double lines indicate
  17. The clause in SQL that specifies that the query result should be sorted in ascending or descending order…
  18. Which one is correct statement?Logical data independence provides following without changing application…
  19. operator is used to compare a value to a list of literals values that have been specified.
  20. What is data integrity?
  21. Data independence means
  22. For correct behaviour during recovery, undo and redo operation must be
  23. ______ keyword is used to find the number of values in a column.
  24. In an ER diagram the ___shape specifies the Attibute and a ____ shape specifies the primary key attribute.
  25. Which normal form is considered adequate for normal relational database design?
  26. As per equivalence rules for query transformation, selection operation distributes over
  27. The keyword to eliminate duplicate rows from the query result in SQL is
  28. ____ table store information about database or about the system.
  29. Relationships among relationships can be represented in an-E-R model using
  30. _____ database is used to provide statistical information or summaries of values based on various criteria.