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Reliable 1z1-071 Dumps Questions | Valid 1z1-071 Study Plan

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Oracle 1z1-071 Exam consists of 73 multiple-choice questions, and the time allotted for completion is two hours. 1z1-071 exam covers a wide range of topics, including SQL data retrieval, manipulation, and reporting, as well as database objects and structures, data integrity, and transactions.

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Oracle Database SQL Sample Questions (Q155-Q160):

NEW QUESTION # 155
View the exhibit and examine the structure of the PROMOTIONS table.

You have to generate a report that displays the promo name and start date for all promos that started after the last promo in the 'INTERNET' category.
Which query would give you the required output?

A. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date> ANY (SELECT promo_begin_date
FROM promotions
WHERE promo_category= 'INTERNET');
B. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date > ALL (SELECT promo_begin_date
FROM promotions
WHERE promo_category = 'INTERNET');
C. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date> ALL (SELECT MAX (promo_begin_date)
FROM promotions) AND
promo_category= 'INTERNET';
D. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date IN (SELECT promo_begin_date
FROM promotions
WHERE promo_category= 'INTERNET');

Answer: B

NEW QUESTION # 156
Examine this description of the EMP table:

You execute this query:
SELECT deptno AS "departments", SUM (sal) AS "salary"
FROM emp
GROUP | BY 1
HAVING SUM (sal)> 3 000;
What is the result?

A. an error
B. only departments where the total salary is greater than 3000, returned in no particular order
C. only departments where the total salary is greater than 3000, ordered by department
D. all departments and a sum of the salaries of employees with a salary greater than 3000

Answer: A

NEW QUESTION # 157
Which three are true about dropping columns from a table?

A. A column can be removed only if it contains no data.
B. A primary key column cannot be dropped.
C. A column must be set as unused before it is dropped from a table.
D. A column drop is implicitly committed
E. A column that is referenced by another column in any other table cannot be dropped.
F. Multiple columns can be dropped simultaneously using the ALTER TABLE command.

Answer: D,E,F

NEW QUESTION # 158
Examine this partial query:
SELECT ch.channel_type, t.month, co.country_code, SUM(s.amount_sold) SALES FROM sales s, times t, channels ch, countries co WHERE s.time_ id = t.time id AND s.country_ id = co. country id AND s. channel id = ch.channel id AND ch.channel type IN ('Direct Sales', 'Internet') AND t.month IN ('2000-09', '2000-10') AND co.country code IN ('GB', 'US') Examine this output:

Which GROUP BY clause must be added so the query returns the results shown?

A. GROUP BY ch.channel_type,ROLLUP (t month, co. country_ code) ;
B. GROUP BYch. channel_ type, t.month,ROLIUP (co. country_ code) ;
C. GROUP BY CUBE (ch. channel_ type, t .month, co. country code);
D. GROUP BY ch.channel_type, t.month, co.country code;

Answer: D

Explanation:
A: True. The GROUP BY clause needs to include all non-aggregated columns from the SELECT list to provide the correct grouping for the output. The output shown in the image indicates that the data is grouped by channel_type, month, and country_code.
B: C, and D are incorrect because:
* B includes a ROLLUP which would introduce subtotals that are not reflected in the output shown.
* C specifies a CUBE, which would produce all possible combinations of groupings including the grand total, which is not shown in the output.
* D specifies a ROLLUP on country_code only, which would not correctly group by channel_type and month.

NEW QUESTION # 159
Examine the description products table:

Examine the description of the new_projects table;

Which two queries execute successfully?

Answer: B,D

NEW QUESTION # 160
......

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