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Oracle 1z0-071 Exam Syllabus Topics:

Section	Objectives
Topic 1: Subqueries and Advanced SQL	- Correlated subqueries and nested queries - Single-row and multi-row subqueries
Topic 2: Data Manipulation and Schema Objects	- DML operations 1. INSERT, UPDATE, DELETE, MERGE - DDL operations 1. CREATE, ALTER, DROP tables and constraints
Topic 3: Relational Database Concepts	- Tables, rows, columns, and relational model basics - Data types and database objects overview
Topic 4: SQL Retrieval	- Joins and set operations 1. UNION, INTERSECT, MINUS 2. INNER, OUTER, CROSS joins - SELECT statements and filtering data 1. WHERE clause and conditions 2. ORDER BY and row limiting
Topic 5: SQL Functions	- Conversion and conditional functions 1. TO_CHAR, TO_NUMBER, CASE expressions - Single-row functions 1. Character, numeric, date functions

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Oracle Database SQL Sample Questions (Q182-Q187):

NEW QUESTION # 182
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 > ALL (SELECT promo_begin_date
FROM promotions
WHERE promo_category = `INTERNET');
B. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date IN (SELECT promo_begin_date
FROM promotions
WHERE promo_category= `INTERNET');
C. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date> ANY (SELECT promo_begin_date
FROM promotions
WHERE promo_category= `INTERNET');
D. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date> ALL (SELECT MAX (promo_begin_date) FROM promotions) AND promo_category= `INTERNET';

Answer: A

NEW QUESTION # 183
Examine the command:

What does ON DELETE CASCADE imply?

A. When a row in the BOOKStable is deleted, the rows in the BOOK_TRANSACTIONStable whose BOOK_IDmatches that of the deleted row in the BOOKStable are also deleted.
B. When the BOOKStable is dropped, the BOOK_TRANSACTIONStable is dropped.
C. When a value in the BOOKS.BOOK_IDcolumn is deleted, the corresponding value is updated in the BOOKS_TRANSACTIONS.BOOK_IDcolumn.
D. When the BOOKStable is dropped, all the rows in the BOOK_TRANSACTIONStable are deleted but the table structure is retained.

Answer: A

NEW QUESTION # 184
Which two statements are true regarding single row functions? (Choose two.)

A. MOD : returns the quotient of a division.
B. TRIM : can be used to remove all the occurrences of a character from a string.
C. TRUNC : can be used with NUMBER and DATE values.
D. SYSDATE : returns the database server current date and time.
E. CONCAT : can be used to combine any number of values.
F. INSTR : can be used to find only the first occurrence of a character in a string.

Answer: C,D

NEW QUESTION # 185
View the exhibit and examine the description of the EMPLOYEES table. (Choose two.)

You executed this SQL statement:
SELECT first_name, department_id, salary
FROM employees
ORDER BY department_id, first_name, salary desc;
Which two statements are true regarding the result? (Choose two.)

A. The values in all columns would be returned in descending order.
B. The values in the SALARY column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID column.
C. The values in the FIRST_NAME column would be returned in ascending order for all employees having the same value in the DEPARTMENT_ID column.
D. The values in the SALARY column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID and FIRST_NAME column.
E. The values in the FIRST_NAME column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID column.

Answer: C,D

NEW QUESTION # 186
What is true about non-equijoin statement performance?

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

Answer: B,E

NEW QUESTION # 187
......

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