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Oracle 1z1-071 Exam Syllabus Topics:

Section	Weight	Objectives
Displaying Data from Multiple Tables Using Joins	15%	- View data that does not meet a join condition by using outer joins - Cross join tables - Join a table to itself by using a self-join - Write SELECT statements to access data from more than one table using equijoins and non-equijoins
Working with Oracle Database SQL	8%	- Explain the installation of Oracle Database software - Start up and shut down a database - Create a container database - Describe the Oracle Database architecture
Using Conversion Functions and Conditional Expressions	10%	- Apply the NVL, NULLIF, and COALESCE functions to data - Describe implicit and explicit data type conversion - Use conditional IF THEN ELSE logic in a SELECT statement - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
Using DDL Statements to Create and Manage Tables	14%	- Drop, rename, and truncate tables - Categorize the main database objects - Create a simple table - Alter table definitions - Describe the data types that are available for columns - Review the table structure
Using Subqueries to Solve Queries	15%	- Define subqueries - Write single-row and multi-row subqueries - Describe the types of problems that subqueries can solve - List the types of subqueries
Restricting and Sorting Data	6%	- Use ampersand substitution to restrict and sort output at runtime - Use DEFINE and UNDEFINE commands - Limit the rows that are retrieved by a query - Sort the rows that are retrieved by a query
Controlling User Access	5%	- Distinguish between granting privileges and roles - Grant privileges on tables and on a view - Differentiate system privileges from object privileges
Retrieving Data Using the SQL SELECT Statement	5%	- Differentiate between SQL statements and SQL*Plus commands - Execute a basic SELECT statement - List the capabilities of SQL SELECT statements
Reporting Aggregated Data Using Group Functions	15%	- Identify the available group functions - Describe the use of group functions - Group data by using the GROUP BY clause - Include or exclude grouped rows by using the HAVING clause
Using Set Operators	5%	- Use a set operator to combine multiple queries into a single query - Describe the order of precedence when the set operators are used - Describe set operators
Using Single-Row Functions to Customize Output	10%	- Manipulate strings with character function in the SELECT and WHERE clauses - Perform arithmetic with date data - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Describe the differences between single-row and multiple-row functions - Manipulate dates with the date functions
Creating Other Schema Objects	10%	- Create synonyms for database objects - Create and maintain indexes - Create, maintain, and use sequences - Create, modify, and retrieve data from a view
Manipulating Data	14%	- Control transactions - Describe each data manipulation language (DML) statement - Insert rows into a table - Delete rows from a table - Update rows in a table

>> Valid 1z1-071 Exam Topics <<

Oracle Database SQL Sample Questions (Q44-Q49):

NEW QUESTION # 44
Evaluate the following SQL statement:
SELECT product_name || 'it's not available for order'
FROM product_information
WHERE product_status = 'obsolete';
You received the following error while executing the above query:
ERROR:
ORA-01756: quoted string not properly terminated
What would you do to execute the query successfully?

A. Enclose the character literal string in the SELECT clause within the double quotation marks.
B. Use escape character to negate the single quotation mark inside the literal character string in the SELECT clause.
C. Do not enclose the character literal string in the SELECT clause within the single quotation marks.
D. Use Quote (q) operator and delimiter to allow the use of single quotation mark in the literal character string.

Answer: D

NEW QUESTION # 45
Which two queries execute successfully?

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

Answer: A,B,C,D

Explanation:
The NULLIF and COALESCE functions in Oracle SQL serve specific purposes:
Option A: Executes successfully. NULLIF returns NULL if the two arguments are equal; otherwise, it returns the first argument.
Option B: Also correct. COALESCE returns the first non-null value among its arguments.
Option C: This will not execute successfully because NULLIF requires both arguments to be of comparable data types. Comparing an integer to a character ('100' to 'A') is invalid.
Option D: Executes successfully. NULLIF returns NULL because it compares NULL to a number, which is valid (though always yields NULL).
Option E: Executes successfully. COALESCE accepts any data type as it returns the first non-null value, irrespective of type consistency among the arguments.

NEW QUESTION # 46
View the Exhibit and examine the details of the PRODUCT_INFORMATION table.
Exhibit

You must display PRODUCT_NAME from the table where the CATEGORY_ID column has values 12 or 13, and the SUPPLIER_ID column has the value 102088.
You executed this SQL statement:

Which statement is true regarding the execution?

A. It would execute and return the desired result.
B. It would not execute because the same column has been used twice with the AND logical operator.
C. It would not execute because the entire WHERE clause is not enclosed within parentheses.
D. It would execute but would return no rows.

Answer: D

NEW QUESTION # 47
A session's NLS_DATE_FORMAT is set to DD Mon YYYY .
Which two queries return the value 1 Jan 2019?

A. SELECT TO_CHAR('2019-01-01') FROM DUAL; 2019-01-01
B. SELECT DATE '2019-01-01' FROM DUAL ;
C. SELECT to_date(' 2019-01-01 ', 'YYYY -MM-DD' ) FROM DUAL;
D. SELECT TO_ DATE('2019-01-01') FROM DUAL;
E. SELECT '2019-01-01' FROM DUAL ; 2019-01-01

Answer: B,C

NEW QUESTION # 48
The CUSTOMERS table has a CUST_LAST_NAME column of data type VARCHAR2.
The table has two rows whose COST_LAST_MANE values are Anderson and Ausson.
Which query produces output for CUST_LAST_SAME containing Oder for the first row and Aus for the second?

A. SELECT REPLACE (SUBSTR(cust_last_name,-3),'An','O') FROM customers;
B. SELECT INITCAP (REPLACE(TRIM('son' FROM cust_last_name),'An','O')) FROM customers;
C. SELECT REPLACE (REPLACE(cust_last_name,'son',''),'An','O') FROM customers;
D. SELECT REPLACE (TRIM(TRALING'son' FROM cust_last_name),'An','O') FROM customers;

Answer: C

Explanation:
The REPLACE function in Oracle SQL is used to replace occurrences of a specified substring with another substring. In this query, the inner REPLACE function call REPLACE(cust_last_name, 'son', '') removes the substring 'son' from cust_last_name. The outer REPLACE function call then replaces the substring 'An' with 'O'. For the given data, 'Anderson' would first be transformed to 'Ander' by the inner REPLACE, and then 'Ander' would be transformed to 'Oder' by the outer REPLACE. Similarly, 'Ausson' would first change to 'Aus' by the inner REPLACE, which is unaffected by the outer REPLACE.
Reference can be found in the Oracle Database SQL Language Reference documentation, which details the functionality of string functions, including REPLACE.

NEW QUESTION # 49
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Valid 1z1-071 Exam Topics - Study 1z1-071 Materials

Oracle 1z1-071 Exam Syllabus Topics:

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Oracle Database SQL Sample Questions (Q44-Q49):