The default level of consistency in SQL is

A. repeatable read

B. read committed

C. read uncommitted

D. serializable

You can do it
  1. What are the desirable properties of a decomposition
  2. Create a table with the following attributes: Employee(EMPNO integer, EMPNAME of 10 characters)
  3. In b-tree the number of keys in each node is than the number of its children.
  4. The cost of reading and writing temporary files while evaluating a query can be reduced by
  5. The graphical representation of a query is .
  6. Which of the following relational algebra operations do not require the participating tables to be union-compatible?
  7. Which one is correct statement?Logical data independence provides following without changing application…
  8. The common column is eliminated in
  9. Wait-for graph is used for
  10. Which of the following is not a characteristic of a relational database model?
  11. Tree structures are used to store data in
  12. Maximum height of a B+ tree of order m with n key values is
  13. ____ table store information about database or about the system.
  14. Relationships among relationships can be represented in an-E-R model using
  15. The data in the database at a particular moment of time is called the _______
  16. The language that requires a user to specify the data to be retrieved without specifying exactly how…
  17. Isolation of the transactions is ensured by
  18. Checkpoints are a part of
  19. E-R Modeling is achieved by using ____ diagrams
  20. Manager salary details are hidden from the employee .This is
  21. Protection of data from unauthorized Disclosure results in loss of _______
  22. Data independence means
  23. In a multi-user database, if two users wish to update the same record at the same time, they are prevented…
  24. DFD stands for
  25. Which of the syntax is correct for insert statement? i) insert into values ii) insert into (column list)…
  26. A ______ module is typically designed so that it will run on a user workstation or personal computer.
  27. Which of the following is not a consequence of non-normalized database?
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    If both the functional dependencies : XY and YX hold for two attributes X and Y then the relationship between X and Y is
  29. _____ command can be used to modify a column in a table
  30. Precedence graphs help to find a