Oracle latest placement papre

Oracle latest placement papre

16. Select the VALID trigger type(s)?

(A) AFTER statement trigger
(B) INSERT row trigger
(C) DELETE row trigger
(D) All of the above

17. Which section of a PL/SQL block would most likely contain a RETURN statement?

(A) Header
(B) Declarative
(C) Executable
(D) Exception

18. Select the non valid PL/SQL Data Type(s)?

(A) BOOLEAN
(B) LONG
(C) STRING
(D) DATE

19. Which function below can best be categorized as similar in function to an IF-THEN-ELSE statement?

(A) SQRT
(B) DECODE
(C) NEW_TIME
(D) ROWIDTOCHAR

20. Which one of the following does not require a number parameter?

(A) sinh
(B) to_number
(C) SQRT
(D) round

21. The user issues the following statement. What will be displayed if the EMPID selected is 60494?

SELECT DECODE(empid,38475, "Terminated",60494, "Recruited",
"Not Recruited") FROM emp;

(A) 60494
(B) 38475
(C) Terminated
(D) Recruited

22. In order to perform an inner join, which criteria must be true?

(A) The common columns in the join do not need to have shared values.
(B) The tables in the join need to have common columns.
(C) The common columns in the join may or may not have shared values.
(D) The common columns in the join must have shared values.

23. Once defined, how long will a variable remain so in SQL*Plus?

(A) Until the database is shut down
(B) Until the instance is shut down
(C) Until the statement completes
(D) Until the session completes

24. The default character for specifying runtime variables in SELECT statements is

(A) Ampersand
(B) Colon
(C) Hash
(D) Astreik

25. A user is setting up a join operation between tables EMP and DEPT. There are some employees in the EMP table that the user wants returned by the query, but the employees are not assigned to departments yet. Which SELECT statement is most appropriate for this user?

(A) select e.empid, d.head from emp e, dept d;
(B) select e.empid, d.head from emp e, dept d where e.dept# = d.dept#;
(C) select e.empid, d.head from emp e, dept d where e.dept# = d.dept# (+);
(D) select e.empid, d.head from emp e, dept d where e.dept# (+) = d.dept#;

26. For avoiding a Cartesian product of 4 tables, the minimum no: of Joins required after WHERE clause is:

(A) 2
(B) 3
(C) 4
(D) 5

27. Which one of the following uses of the HAVING clause is inappropriate?

(A) To put returned data into sorted order
(B) To exclude certain data based on known criteria
(C) To include certain data based on unknown criteria
(D) To include certain data based on known criteria

28. The "emp" table contains 14 rows. How many rows will the following query return?
SQL> Select * from Emp where rownum > 5;
(A) 9
(B) 10
(C) 0
(D) Error

29. Which line in the following SELECT statement will produce an error?

Line1: SELECT dept, AVG(salary)
Line2: FROM emp
Line3: GROUP BY empid;

(A) Line 1 and Line 2
(B) Line 3
(C) Only Line 1
(D) There are no errors in this statement.

30. Which of the following integrity constraints automatically create an index when defined?

(A) Foreign keys
(B) Unique constraints and Primary Keys
(C) NOT NULL constraints
(D) Both a and b.

Oracle

1. Which of the following is not similar with the others?

(A) cube
(B) sphere
(C) pyramid
(D) circle

2. Consider the following flow chart for a customer:

The person in No.1 is:

(A) Married, with children
(B) Married, with at least one son
(C) Unmarried, with at least one daughter
(D) Unmarried, with at least one son

3. Susan can type 10 pages in 5 minutes. Mary can type 5 pages in 10 minutes. Working together, how many pages can they type in 30 minutes?

(A) 15
(B) 20
(C) 65
(D) 75


4. Consider the following series:
4, 6, 9, 13, ____ What comes next?

(A) 15
(B) 16
(C) 17
(D) 18

There are six steps that lead from the first to the second floor. No two people can be on the same step
Mr. A is two steps below Mr. C
Mr. B is a step next to Mr. D
Only one step is vacant ( No one standing on that step )
Denote the first step by step 1 and second step by step 2 etc.


5. If Mr. A is on the first step, Which of the following is true?

(A) Mr. B is on the second step
(B) Mr. C is on the fourth step.
(C) A person Mr. E, could be on the third step
(D) Mr. D is on higher step than Mr. C.


6. If Mr. E was on the third step & Mr. B was on a higher step than Mr. E which step must be vacant

(A) step 1
(B) step 2
(C) step 4
(D) step 5


7. If Mr. B was on step 1, which step could A be on?

(A) 2&3 only
(B) 3&5 only
(C) 3&4 only
(D) 4&5 only


8. If there were two steps between the step that A was standing and the step that B was standing on, and A was on a higher step than D , A must be on step

(A) 2
(B) 3
(C) 4
(D) 5


9. int z;
int x = 5;
int y = -10;
int a = 4;
int b = 2;

z = x++ - --y * b /a;

What number will z in the sample code above contains
(A) 5
(B) 6
(C) 10
(D) 11


10. f = fopen( fileName, "r" );
if( ???? )
{
fprintf( stderr, "Cound not open file!" );
exit( -1 );
}

What should replace the ???? in the code above to determine if the file could not be opened?

(A) f == NULL
(B) f == EOF
(C) f != 0;
(D) f == -1


11. int x[] = { 1, 4, 8, 5, 1, 4 };
int *ptr, y;
ptr = x + 4;
y = ptr - x;
What does y in the sample code above equal?

(A) -3
(B) 0
(C) 4
(D) 4 + sizeof( int )


12. #include
void func()
{
int x = 0;
static int y = 0;
+; y++;
printf( "%d -- %d\n", x, y );
}
int main()
{
func();
func();
return 0;
}

printf("%d\n", 64>>3);
What will the sample code above produce when executed?

(A) 8
(B) 16
(C) 32
(D) 256


13. What is the output of the following code:
char str[20] = "ENIGMA";
char *p, *q, *r;
q=p++;
r=p+3 - (p-q);
printf("%3s%5s", (++p)+3, r);

(A) ENIGMA
(B) GMA
(C) No output
(D) Error.


14. #include
void inc_count(int count)
{
count ++;
}
int main()
{
int count = 0; /* number of times through */
while (count < 10)
inc_count(count);
return count ;
}
What will be the value returned by the function main?

(A) 0
(B) 10
(C) 9
(D) Null


15. What is the correct way to define a constant pointer?

(A) const char *name_ptr = "TEST";
(B) char *const name_ptr = "TEST";
(C) Both
(D) None of Above.


16. Which one of the following are parts of an entity relationship diagram?
(A) Referential integrity constraints
(B) Entities and Relationships
(C) Triggers
(D) Both a and b

17. The transaction control that prevents more than one user from updating data in a table is called
(A) Locks
(B) Commits
(C) Rollbacks
(D) Savepoints




18. Any locks placed in a session can be released issuing which of the following statements

(A) commit
(B) rollback
(C) Both a and b
(D) By a savepoint


19. Which of the following statements are true about roles?

(A) Roles can be granted to other roles and/or users.
(B) Privileges can be granted to roles.
(C) Roles can be granted to synonyms.
(D) Both a and b.


20. The limit for the number of parameters for a pl/sql procedure is

(A) 256
(B) No Limit at all
(C) Depends on the type of parameters passed to the procedure
(D) Depends on Positional Parameters passed.


21. The exact content and the storage representation of a column in database can be found out using the function

(A) translate
(B) to_char
(C) dump
(D) substr


22. A view is a

(A) A Table in the database belonging to different schema.
(B) A query stored in the database in the form of an object.
(C) A part of a table
(D) All the above.

23. The key word used in sql for string searching is

(A) LIKE
(B) NVL
(C) GROUP BY
(D) HAVING


24. For referrential integrity to be maintained.

(A) Every foreign key value must have a corresponding primary/unique key value
(B) No Forein key should have a corresponding primary key value.
(C) There should be an index on the tables.
(D) The tables should be in different schemas of the database.


25. A ddl statment in a pl/sql can be issued in a pl/sql block using the package

(A) dbms_output
(B) dbms_sql
(C) UTL_FILE
(D) dbms_job


26. Choose the result of the following sql statement.

SELECT hire_date
FROM emp
where to_char(hire_date) > '01-FEB-00';

(A) 01-APR-00
(B) 01-OCT-00
(C) 01-APR-99
(D) 01-DEC-00


27. Purity level of a function can be checked using

(A) PRAGMA EXCEPTION_INIT.
(B) PRAGMA RESTRICT REFERENCES
(C) DBMS_OUTPUT.
(D) DBMS_SQL.


28. The __________ Statement is used to run the pl/sql block.

(A) Get filename
(B) start filename
(C) run filename
(D) None of the above
Difference between %TYPE and %ROWTYPE