Oracle 1z1-071考古题推薦，最新1z1-071試題

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最新的 Oracle PL/SQL Developer Certified Associate 1z1-071 免費考試真題 (Q283-Q288):

問題 #283
Which three are true?

A. LAST_DAY returns the date of the last day of the current ,month onlyu.
B. ADD_MONTHS works with a character string that can be implicitlyt converted to a DATE data type.
C. LAST_DAY returns the date of the last day of the month for the date argument passed to the function.
D. ADD_MONTHS adds a number of calendar months to a date.
E. CEIL requires an argument which is a numeric data type.
F. CEIL returns the largest integer less than or equal to a specified number.
G. LAST_DAY return the date of the last day the previous month only.

答案：B,C,D

解題說明：
* A: LAST_DAY does not only return the last day of the current month; it returns the last day of the month based on the date argument passed to it, which may not necessarily be the current month. Thus, statement A is incorrect.
* B: CEIL requires a numeric argument and returns the smallest integer greater than or equal to that number. Thus, statement B is incorrect.
* C: ADD_MONTHS function adds a specified number of calendar months to a date. This statement is correct as per the Oracle documentation.
* D: ADD_MONTHS can work with a character string if the string can be implicitly converted to a DATE, according to Oracle SQL data type conversion rules. Therefore, statement D is correct.
* E: LAST_DAY does not specifically return the last day of the previous month; it returns the last day of the month for any given date. Thus, statement E is incorrect.
* F: CEIL returns the smallest integer greater than or equal to the specified number, not the largest integer
* less than or equal to it. Hence, statement F is incorrect.
* G: LAST_DAY returns the last day of the month for the date argument passed to the function, which aligns with the definition in Oracle's SQL reference. Therefore, statement G is correct.

問題 #284
View the Exhibit and examine the structure of the PROMOTION table.

You have to generate a report that displays the promo named start data for all promos that started after that last promo in the 'INTTERNET' category.

A. SELECT promo-name, promo-being _date FROM promotions
Where promo_being_data >ALL (SELECT MAX (promo_being-date)
FROM promotions ) AND
Promo-category ='INTERNET';
B. Select promo_name, promo_being_date FROM promoptions
WHERE promo_being_data > ANY (SELCT promo_being-date
FROM promotions
WHERE promo_category = 'INTERNET'
C. SELECT promo-name, promo-being_date FROM promotion
WHERE promo-being-date IN (SELECT promo_biing_date
FROM promotions
WHERE promo_category='INTYERNET');
D. SELECT promo_neme, promo_being_date FROM promotions
WHERE promo_being_date > All (SELECT promo_beinjg-date
FROM promotions
WHERE promo_category ='INTERNET' );

答案：D

問題 #285
View the exhibit for the structure of the STUDENT and FACULTY tables.

You need to display the faculty name followed by the number of students handled by the faculty at the base location.
Examine the following two SQL statements:
Statement 1
SQL>SELECT faculty_name, COUNT(student_id)
FROM student JOIN faculty
USING (faculty_id, location_id)
GROUP BY faculty_name;
Statement 2
SQL>SELECT faculty_name, COUNT(student_id)
FROM student NATURAL JOIN faculty
GROUP BY faculty_name;
Which statement is true regarding the outcome?

A. Both statements 1 and 2 execute successfully and give different results.
B. Only statement 2 executes successfully and gives the required result.
C. Both statements 1 and 2 execute successfully and give the same required result.
D. Only statement 1 executes successfully and gives the required result.

答案：D

問題 #286
The INVOICE table has a QTY_SOLD column of data type NUMBER and an INVOICE_DATE column of data type DATE.
NLS_DATE_FORMAT is set to DD-MON-RR.
Which two are true about data type conversions involving these columns in query expressions? (Choose two.)

A. qty_sold = '0554982' : requires explicit conversion
B. CONCAT(qty_sold, invoice_date) : requires explicit conversion
C. qty_sold BETWEEN '101' AND '110' : uses implicit conversion
D. invoice_date > '01-02-2019' : uses implicit conversion
E. invoice_date = '15-march-2019' : uses implicit conversion

答案：C,E

問題 #287
Which two statements are true regarding the COUNTfunction?

A. COUNT (*)returns the number of rows including duplicate rows and rows containing NULLvalue in any of the columns.
B. COUNT(DISTINCT inv_amt)returns the number of rows excluding rows containing duplicates and NULLvalues in the INV_AMTcolumn.
C. A SELECTstatement using the COUNTfunction with a DISTINCTkeyword cannot have a WHERE clause.
D. The COUNTfunction can be used only for CHAR, VARCHAR2, and NUMBERdata types.
E. COUNT(cust_id)returns the number of rows including rows with duplicate customer IDs and NULL value in the CUST_IDcolumn.

答案：A,B

問題 #288
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Oracle 1z1-071考古题推薦，最新1z1-071試題

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最新的 Oracle PL/SQL Developer Certified Associate 1z1-071 免費考試真題 (Q283-Q288):