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Oracle 1z1-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q329-Q334):

NEW QUESTION # 329
Which three statements are true regarding the usage of the WITH clause in complex correlated subqueries:
(Choose three.)

A. The WITH clause can hold more than one query.
B. If the query block name and the table name are the same, then the table name takes precedence.
C. The query name in the WITH clause is visible to other query blocks in the WITH clause as well as to the main query block
D. It can be used only with the SELECT clause.

Answer: A,C,D

NEW QUESTION # 330
Examine this query:

Which two methods should you use to prevent prompting for a hire date value when this query is executed? (Choose two.)

A. Execute the SET VERIFY OFF command before executing the query.
B. Use the DEFINE command before executing the query.
C. Replace `&1' with `&&1' in the query.
D. Execute the SET VERIFY ON command before executing the query.
E. Store the query in a script and pass the substitution value to the script when executing it.
F. Use the UNDEFINE command before executing the query.

Answer: B,E

NEW QUESTION # 331
Which three are key components of an Entity Relationship Model?

A. a relationship
B. an entity
C. an activity
D. a table
E. an attribute
F. a unique identifier

Answer: A,B,E

NEW QUESTION # 332
View the Exhibit and examine the structure of the CUSTOMERStable.

Using the CUSTOMERStable, you must generate a report that displays a credit limit increase of 15% for all customers.
Customers with no credit limit should have "Not Available" displayed.
Which SQL statement would produce the required result?
SELECT NVL(TO_CHAR(cust_credit_limit*.15),'Not Available') "NEW CREDIT"

A. FROM customers;
SELECT TO_CHAR(NVL(cust_credit_limit*.15,'Not Available')) "NEW CREDIT"
B. FROM customers;
SELECT NVL(cust_credit_limit,'Not Available')*.15 "NEW CREDIT"
C. FROM customers;
D. FROM customers;
SELECT NVL(cust_credit_limit*.15,'Not Available') "NEW CREDIT"

Answer: A

NEW QUESTION # 333
Which two are true about dropping columns from a table? (Choose two.)

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

Answer: E,F

NEW QUESTION # 334
......

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