Oracle 1z0-071 Relevant Answers | 1z0-071 PDF Download

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Oracle 1z0-071: Oracle Database SQL is an industry-recognized certification exam that tests an individual's knowledge of SQL, a widely used programming language for managing data. Oracle Database SQL certification is designed to assess one's ability to work with relational databases and manage data using SQL commands. 1z0-071 exam is essential for professionals who want to pursue a career in database administration or data analytics.

Oracle 1z0-071 exam covers a broad range of topics related to SQL development and database management, including SQL queries, data manipulation, data control language, data definition language, transactions, and database security. Candidates must demonstrate their ability to write complex SQL queries, manage database objects, and perform database administration tasks. 1z0-071 Exam is challenging, but passing it can open up many opportunities for IT professionals in various industries.

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Oracle 1z0-071 Exam Syllabus Topics:

Topic	Details
Topic 1	Managing Views: This domain covers how to manage or oversee modules.
Topic 2	Managing Objects with Data Dictionary Views: This domain covers utilizing data dictionary views.
Topic 3	Managing Data in Different Time Zones: In this domain, topics include working with CURRENT_DATE, CURRENT_TIMESTAMP, and LOCALTIMESTAMP, and working with INTERVAL data types.
Topic 4	Restricting and Sorting Data: This domain covers topics such as applying Rules of precedence for operators in an expression, limiting Rows Returned in a SQL Statement, and utilizing Substitution Variables.
Topic 5	Granting privileges on tables and distinguishing between giving privileges and roles.
Topic 6	Retrieving Data using the SQL SELECT Statement: This domain comprises topics such as using Column aliases, the SQL SELECT statement, utilizing the concatenation operator, literal character strings, alternative quote operator, and the DISTINCT keyword.
Topic 7	Displaying Data from Multiple Tables: In this domain, topics include how to use Self-joins, use different types of Joins, how to utilize Nonequijoins, and OUTER joins.
Topic 8	Controlling User Access: In this module, the topics include differentiating system privileges from object privileges
Topic 9	Using Conversion Functions and Conditional Expressions: In this domain, the topics covered are how to apply the NVL, NULLIF, and COALESCE functions to data, how to understand the implicit and explicit data type conversion, utilize the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions, and nesting multiple functions.
Topic 10	Using Subqueries to Solve Queries: In this module, topics include using Single Row Subqueries, Multiple Row Subqueries, and how to delete and update rows.
Topic 11	Reporting Aggregated Data Using Group Functions: In this section of the exam, it is covered how to restrict Group Results and create Groups of Data.

Oracle Database SQL Sample Questions (Q187-Q192):

NEW QUESTION # 187
Which two tasks require subqueries?

A. Display the total number of products supplied by supplier 102 which have a product status of obsolete.
B. Display suppliers whose PROD_LIST_PRICE is less than 1000.
C. Display the number of products whose PROD_LIST_PRICE is more than the average PROD_LIST_PRICE.
D. Display products whose PROD_MIN_PRICE is more than the average PROD_LIST_PRICE of all products, and whose status is orderable.
E. Display the minimum PROD_LIST_PRICE for each product status.

Answer: C,D

Explanation:
C: True. To display the number of products whose PROD_LIST_PRICE is more than the average PROD_LIST_PRICE, you would need to use a subquery to first calculate the average PROD_LIST_PRICE and then use that result to compare each product's list price to the average.
E: True. Displaying products whose PROD_MIN_PRICE is more than the average PROD_LIST_PRICE of all products and whose status is orderable would require a subquery. The subquery would be used to determine the average PROD_LIST_PRICE, and then this average would be used in the outer query to filter the products accordingly.
Subqueries are necessary when the computation of a value relies on an aggregate or a result that must be obtained separately from the main query, and cannot be derived in a single level of query execution.
Reference:
Oracle's SQL documentation provides guidelines for using subqueries in scenarios where an inner query's result is needed to complete the processing of an outer query.

NEW QUESTION # 188
Which two statements are true about the DUAL table?

A. It can display multiple rows but only a single column.
B. It can be used to display only constants or pseudo columns.
C. It can be accessed by any user who has the SELECT privilege in any schema
D. It can be accessed only by the SYS user.
E. It can display multiple rows and columns.
F. It consists of a single row and single column of VARCHAR2 data type.

Answer: C,F

Explanation:
A . Incorrect. DUAL consists of a single row and column. B. Incorrect. DUAL is a special one-row, one-column table present by default in all Oracle database installations and can be accessed by any user with SELECT privilege. C. Correct. Any user with the SELECT privilege can select from the DUAL table. It is a dummy table used primarily for selecting a constant, pseudocolumn, or expression not involving any tables. D. Incorrect. DUAL has only one row and one column. E. Correct. The DUAL table has a single VARCHAR2 column called DUMMY, which has a value of 'X'. F. Incorrect. DUAL can be used for a variety of purposes, such as selecting system constants, user environment variables, expressions, and sequences.
This information is detailed in the Oracle Database SQL Language Reference, which describes the properties and uses of the DUAL table.

NEW QUESTION # 189
Which three are true about privileges and roles?

A. PUBLIC acts as a default role granted to every user in a database
B. PUBLIC can be revoked from a user.
C. A user has all object privileges for every object in their schema by default.
D. All roles are owned by the SYS schema.
E. A role can contain a combination of several privileges and roles.
F. A role is owned by the user who created it.
G. System privileges always set privileges for an entire database.

Answer: A,C,E

Explanation:
Roles and privileges in Oracle manage access and capabilities within the database:
Option A: False. Roles are not "owned" in the traditional sense by the user who created them. They exist independently within the Oracle database and are assigned to users.
Option B: False. System privileges can be very granular, affecting specific types of operations or database objects, not always the entire database.
Option C: False. Roles are not owned by the SYS schema but are managed by database security and can be created by any user with sufficient privileges.
Option D: True. A role can indeed contain a combination of several privileges, including other roles, allowing for flexible and layered security configurations.
Option E: True. By default, a user has all object privileges for objects they own (i.e., objects in their schema).
Option F: False. PUBLIC is a special designation that applies to all users; individual privileges granted to PUBLIC cannot be revoked from a single user without revoking them from all users.
Option G: True. PUBLIC is a role granted by default to every user in an Oracle database, providing basic privileges necessary for general usability of the database.

NEW QUESTION # 190
Which three are true about privileges?

A. Only users with the GRANT ANY PRIVILEGE privilege can grant and revoke system privileges from other users.
B. Schema owners can grant object privileges on objects in their schema to any other user or role.
C. Only users with the DBA role can create roles .
D. All types of schema objects have associated object privileges .
E. A combination of object and system privileges can be granted to a role.
F. Object privileges granted on a table automatically apply to all synonyms for that table.

Answer: A,B,E

Explanation:
A . Schema owners indeed can grant privileges on objects in their schema to other users or roles, making this statement true.
B . Roles in Oracle can be granted both object and system privileges, making this statement true as well.
C . Not all types of schema objects have associated object privileges. For example, synonyms do not have object privileges because they are just aliases for other objects.
D . The DBA role is a powerful role, but creating roles can be done by any user granted the necessary privileges, not just users with the DBA role.
E . Object privileges on a table do not automatically apply to all synonyms for that table. Synonyms are separate objects that must have privileges granted explicitly.
F . The privilege to grant system privileges is controlled by the GRANT ANY PRIVILEGE system privilege, making this statement true.
Reference:
Oracle Database SQL Language Reference, 12c Release 1 (12.1): "Privileges" Oracle Database Security Guide, 12c Release 1 (12.1): "Administering User Privileges, Roles, and Profiles"

NEW QUESTION # 191
Which statement is true regarding external tables?

A. The data and metadata for an external table are stored outside the database.
B. The CREATE TABLE AS SELECTstatement can be used to upload data into a normal table in the database from an external table.
C. ORACLE_LOADERand ORACLE_DATAPUMPhave exactly the same functionality when used with an external table.
D. The default REJECT LIMITfor external tables is UNLIMITED.

Answer: B

Explanation:
Explanation/Reference:
References:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/tables013.htm

NEW QUESTION # 192
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Oracle 1z0-071 Relevant Answers | 1z0-071 PDF Download

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Oracle Database SQL Sample Questions (Q187-Q192):

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