Download Oracle Database SQL.ActualTests.1Z0-071.2021-06-07.1e.78q.vcex

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Exam Oracle Datbase 12c SQL
Number 1z0-071
File Name Oracle Database SQL.ActualTests.1Z0-071.2021-06-07.1e.78q.vcex
Size 3.38 Mb
Posted June 07, 2021
Downloads 35

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Demo Questions

Question 1
Examine the description of the PROMOTIONS table:

   
  
You want to display the unique promotion costs in each promotion category. 
Which two queries can be used? (Choose two.)

  • A: SELECT DISTINCT promo_category || ' has ' || promo_cost AS COSTS FROM promotions ORDER BY 1;
  • B: SELECT DISTINCT promo_cost || ' in ' || DISTINCT promo_category FROM promotions ORDER BY 1;
  • C: SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1;
  • D: SELECT promo_category DISTINCT promo_cost, FROM promotions ORDER BY 2;
  • E: SELECT promo_cost, promo_category FROM promotions ORDER BY 1;



Question 2
Examine the description of the PRODUCTS table:

   
  
Which three queries use valid expressions? (Choose three.)

  • A: SELECT product_id, unit_price, S "Discount", unit_price + surcharge - discount FROM products;
  • B: SELECT product_id, (unit_price * 0.15 / (4.75 + 552.25)) FROM products;
  • C: SELECT product_id, (expiry_date - delivery_date) * 2 FROM products;
  • D: SELECT product_id, unit_price || 5 "Discount", unit_price + surcharge - discount FROM products;
  • E: SELECT product_id, expiry_date * 2 FROM products;
  • F: SELECT product_id, unit_price, unit_price + surcharge FROM products;



Question 3
What is true about non-equijoin statement performance? (Choose two.)

  • A: The BETWEEN condition always performs less well than using the >= and <= conditions.
  • B: The BETWEEN condition always performs better than using the >= and <= conditions. 
  • C: The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax.
  • D: Table aliases can improve performance.
  • E: The join syntax used makes no difference to performance.



Question 4
Which two are true? (Choose two.)

  • A: ADD_MONTHS adds a number of calendar months to a date.
  • B: CEIL requires an argument which is a numeric data type.
  • C: CEIL returns the largest integer less than or equal to a specified number.
  • D: LAST_DAY returns the date of the last day of the current month only.
  • E: LAST_DAY returns the date of the last day of the month for the date argument passed to the function.
  • F: LAST_DAY returns the date of the last day of the previous month only.



Question 5
Which three statements are true about Oracle synonyms? (Choose three.)

  • A: A synonym cannot be created for a PL/SQL package.
  • B: A synonym can be available to all users.
  • C: A SEQUENCE can have a synonym.
  • D: Any user can drop a PUBLIC synonym.
  • E: A synonym created by one user can refer to an object belonging to another user.



Question 6
Which two are true? (Choose two.)

  • A: CONCAT joins two character strings together.
  • B: CONCAT joins two or more character strings together.
  • C: FLOOR returns the largest positive integer less than or equal to a specified number.
  • D: INSTR finds the offset within a character string, starting from position 0.
  • E: INSTR finds the offset within a string of a single character only.
  • F: FLOOR returns the largest integer less than or equal to a specified number.



Question 7
Examine these SQL statements which execute successfully:
  
   
  
Which two statements are true after execution? (Choose two.)

  • A: The primary key constraint will be enabled and IMMEDIATE.
  • B: The foreign key constraint will be enabled and DEFERRED.
  • C: The primary key constraint will be enabled and DEFERRED.
  • D: The foreign key constraint will be disabled.
  • E: The foreign key constraint will be enabled and IMMEDIATE. 



Question 8
Examine this SQL statement:

  
   

Which two are true? (Choose two.)

  • A: All existing rows in the ORDERS table are updated.
  • B: The subquery is executed before the UPDATE statement is executed.
  • C: The subquery is not a correlated subquery.
  • D: The subquery is executed for every updated row in the ORDERS table.
  • E: The UPDATE statement executes successfully even if the subquery selects multiple rows.



Question 9
Which two statements are true about TRUNCATE and DELETE? (Choose two.)

  • A: DELETE can use a WHERE clause to determine which row(s) should be removed.
  • B: TRUNCATE can use a WHERE clause to determine which row(s) should be removed.
  • C: TRUNCATE leaves any indexes on the table in an UNUSABLE state.
  • D: The result of a TRUNCATE can be undone by issuing a ROLLBACK.
  • E: The result of a DELETE can be undone by issuing a ROLLBACK.



Question 10
The STORES table has a column START_DATE of data type DATE, containing the date the row was inserted. 
You only want to display details of rows where START_DATE is within the last 25 months. 
Which WHERE clause can be used?

  • A: WHERE TO_NUMBER(start_date - SYSDATE) <= 25
  • B: WHERE MONTHS_BETWEEN(start_date, SYSDATE) <= 25
  • C: WHERE MONTHS_BETWEEN(SYSDATE, start_date) <= 25
  • D: WHERE ADD_MONTHS(start_date, 25) <= SYSDATE






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