1z0-047 latest dumps

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Oracle Database SQL Expert 1z0-047
Exam Number/Code : 1z0-047
Exam Name : Oracle Database SQL Expert
One year free update
Once failed,100% refund
Questions and Answers : 192Q&As
Update Time : 2012-11-1
Price : $79.00

Oracle Database SQL Expert 1Z0-047 Exam
Reporting Aggregated Data Using the Group Functions
Identify the available group functions
Describe the use of group functions
Group data by using the GROUP BY clause
Include or exclude grouped rows by using the HAVING clause
Displaying Data from Multiple Tables

Write SELECT statements to access data from more than one table using equijoins and nonequijoins
Join a table to itself by using a self-join
View data that generally does not meet a join condition by using outer joins
Generate a Cartesian product of all rows from two or more tables

Free 1z0-047 latest dumps Demo Download
QUESTION 1
Which two statements are true regarding the types of table joins available in Oracle Database 10g? (Choose two.)
A.You can use the JOIN clause to join only two tables.
B.You can explicitly provide the join condition with a NATURAL JOIN.
C.You can use the USING clause to join tables on more than one column.
D.You can use the ON clause to specify multiple conditions while joining tables.
Answer: CD

QUESTION 2
Which statement is true regarding the CUBE operator in the GROUP BY clause of a SQL statement?
A.It produces only aggregates for the groups specified in the GROUP BY clause.
B.It finds all the NULL values in the superaggregates for the groups specified in the GROUP BY clause.
C.It produces 2 n possible superaggregate combinations, if the n columns and expressions are specified in the GROUP BY clause.
D.It produces n+1 possible superaggregate combinations, if the n columns and expressions are specified in the GROUP BY clause.
Answer: C

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