Oracle 1z1-071 Questions PDF File

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Oracle 1z1-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q122-Q127):

NEW QUESTION # 122
Examine the structure of the CUSTOMERS table: (Choose two.)

CUSTNO is the PRIMARY KEY.
You must determine if any customers' details have been entered more than once using a different CUSTNO, by listing all duplicate names.
Which two methods can you use to get the required result?

A. Right outer-join with self-join
B. Subquery
C. Full outer-join with self-join
D. Self-join
E. Left outer-join with self-join

Answer: B,D

NEW QUESTION # 123
Examine the data in the CUST_NAMEcolumn of the CUSTOMERStable:

You want to display the CUST_NAMEvalues where the last name starts with Mcor MC.
Which two WHERE clauses give the required result? (Choose two.)

A. WHERE SUBSTR (cust_name, INSTR (cust_name, `') +1) LIKE `Mc%' OR `MC%'
B. WHERE INITCAP (SUBSTR (cust_name, INSTR(cust_name, `')+1)) LIKE `Mc%'
C. WHERE SUBSTR (cust_name, INSTR (cust_name, `') +1) LIKE `Mc%'
D. WHERE INITCAP (SUBSTR (cust_name, INSTR(cust_name, `')+1)) IN (`MC%', `Mc%)
E. WHERE UPPER (SUBSTR (cust_name, INSTR(cust_name, `')+1)) LIKE UPPER (`MC%')

Answer: A,C

NEW QUESTION # 124
Examine this statement:

Which two things must be changed for it to execute successfully?

A. The word CONSTRAINT in the foreign key constraint on DEPT_ID must be changed to FOREIGN KEY.
B. The primary key constraint on BMP_ID must have a name.
C. The foreign key constraint on DEPT_ID must be defined at the table level instead of the column level.
D. The NOT NULL constraint on ENAME must be defined at the column level instead of the table level.
E. One of the LONG columns must be changed to a VARCHAR2 or CLOB.

Answer: D,E

NEW QUESTION # 125
Which two queries execute successfully?

A. SELECT NULLIF(NULL, 100) FROM DUAL;
B. SELECT COALESCE(100, NULL, 200) FROM DUAL;
C. SELKCT COALESCE (100, 'A') FROM DUAL;
D. SELECT NULLIF (100, 'A') FROM DUAL;
E. SELECT NULLIF (100) FROM DUAL;

Answer: B,E

NEW QUESTION # 126
Examine the following query:

What is the output of this query?

A. It displays the first 5 percent of the rows from the SALES table.
B. It displays 5 percent of the products with the lowest amount sold.
C. It displays 5 percent of the products with the highest amount sold.
D. It results in an error because the ORDER BY clause should be the last clause.

Answer: B

NEW QUESTION # 127
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