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NO.1 View the Exhibit and examine the data in the PROJ_TASK_DETAILS table.
The PROJ_TASK_DETAILS table stores information about tasks involved in a project and the relation
between them.
The BASED_ON column indicates dependencies between tasks. Some tasks do not depend on the
completion of any other tasks.
You need to generate a report showing all task IDs, the corresponding task ID they are dependent on,
and the name of the employee in charge of the task it depends on.
Which query would give the required result?
A. SELECT p.task_id, p.based_on, d.task_in_charge
FROM proj_task_details p LEFT OUTER JOIN proj_task_details d ON (p.based_on = d.task_id);
B. SELECT p.task_id, p.based_on, d.task_in_charge FROM proj_task_details p JOIN proj_task_details d
ON (p.based_on = d.task_id);
C. SELECT p.task_id, p.based_on, d.task_in_charge
FROM proj_task_details p FULL OUTER JOIN proj_task_details d ON (p.based_on = d.task_id);
D. SELECT p.task_id, p.based_on, d.task_in_charge FROM proj_task_details p JOIN proj_task_details d
ON (p.task_id = d.task_id);
Answer: A
1z0-061 CBT
NO.2 Examine the data in the CUSTOMERS table:
You want to list all cities that have more than one customer along with the customer details. Evaluate
the following query:
SQL>SELECT c1.custname, c1.city FROM Customers c1 __________________ Customers c2 ON
(c1.city=c2.city AND c1.custname<>c2.custname);
Which two JOIN options can be used in the blank in the above query to give the correct output?
(Choose two.)
A. JOIN
B. RIGHT OUTER JOIN
C. LEFT OUTER JOIN
D. NATURAL JOIN
E. FULL OUTER JOIN
Answer: A,B
1z0-061 Pattern
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