Free Oracle 1z0-882 Exam Dumps Questions & Answers

These there tables represent a many -to-many relationship in asocial networking database:

This query draft is constructed to report for the past 30 days:
Which change will correct this query?

• A.  Option C
• B.  Option D
• C.  Option A
• D.  Option B

A SELECT statement without an ORDER BY clause return some rows.
Which statement is always true about the order of the returned results?

• A.  The results are in descending order.
• B.  The results are in ascending order.
• C.  The results are not in a set order.
• D.  The results are in the order inserted.

Consider the my_table table with two integer columns, a and b, and the contents as shown;
Mysql > SELECT a, b FROM my_table;

1 row in set result of this query?
SELECT a-b
FROM my_table;

• A.  0
• B.  2
• C.  4
• D.  An error message

A table country exists with a column Name. A user variable @ limitcount contains the value 20.
Which two statements are valid uses of the LIMIT clause?

• A.  SELECT Name FROM country LIMIT 100,50
• B.  SELECT Name FROM country LIMIT 100-50
• C.  SELECT Name FROM country LIMIT @limitcount
• D.  SELECT Name FROM country LIMIT 35
• E.  SELECT Name FROM country LIMIT RAND ()

A floating- point column defined as FLOAT(7,5)allows___________

• A.  5 digits to the left of the decimal point and 7 digits to the right
• B.  7 digits to the left of the decimal point and 5 digits to the right
• C.  7 digits in total, of which 5 are to the right of the decimal point
• D.  7 digits in total, of which 5 are to the left of the decimal point