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Oracle 1Z0-082 Exam Syllabus Topics:

Section	Objectives
Using Subqueries to Solve Queries	- Use multiple-row subqueries with multiple-row operators (IN, ANY, ALL) - Use single-row subqueries with single-row and multiple-row operators - Define subqueries - Describe the types of subqueries (single-row, multi-row, multiple-column) - Use subqueries in the WHERE clause and HAVING clause - Use scalar subqueries in SQL
Managing Data in Different Time Zones	- Explain the concepts of time zones and daylight savings - Use various datetime data types (DATE, TIMESTAMP, INTERVAL) - Describe the use of datetime functions (CURRENT_DATE, EXTRACT, LOCALTIMESTAMP)
Understanding Oracle Database Architecture - Oracle Database Instance	- Understand Oracle Database instance management - Explain the memory structures (SGA, PGA) - Describe the background processes
Introduction to Oracle Database	- Describe Oracle Database Cloud Service (DBCS) architecture and features - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) - Explain Oracle Database server architecture - Describe Oracle Database instance and memory structures - Explain database storage structures (data blocks, segments, tablespaces, data files) - Describe Oracle Database architecture
Using Conversion Functions and Conditional Expressions	- Use nested functions - Apply the NVL, NULLIF, and COALESCE functions - Use the CAST function for data type conversion - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
Displaying Data from Multiple Tables Using Joins	- Join a table to itself using self-join - Use CROSS joins - Use Equijoins and Non-equijoins - Describe different types of joins and their features - Use OUTER joins (LEFT, RIGHT, FULL)
Retrieving Data using the SQL SELECT Statement	- Use the ORDER BY clause - Use scalar and correlated subqueries - List the capabilities of SQL SELECT statements - Describe how schema objects work - Use SQL row functions (character, number, date, conversion, general) - Execute a basic SELECT statement
Working with Oracle Cloud Exadata Express Cloud Service	- Identify the prerequisites for Exadata Express Cloud Service - Navigate the Exadata Express Cloud Service console - Describe the features and benefits of Exadata Express Cloud Service - Provision and manage an Exadata Express Cloud Service instance
Understanding Oracle Database Architecture - Database Storage Structures	- Describe tablespaces and data files - Create and manage tablespaces - Describe the logical and physical database structures - Manage space in tablespaces
Managing Schema Objects	- Create indexes and views - Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) - Create and modify tables - Manage sequences and synonyms
Restricting and Sorting Data	- Use the WHERE clause to limit retrieved rows - Use the NULL operators (IS NULL, IS NOT NULL) - Use comparison operators and logical operators (AND, OR, NOT) - Sort data using the ORDER BY clause - Use the BETWEEN comparator - Use the LIKE and IN operators
Using Single-Row Functions to Customize Output	- Describe various types of functions available in SQL - Use character, number, and date functions in SELECT statements - Use CASE and DECODE for conditional expressions - Describe the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE)
Managing Oracle Database Instances	- Start up and shut down an Oracle Database instance - Manage initialization parameter files (SPFILE, PFILE) - Use the Automatic Diagnostic Repository (ADR) - View the alert log and access dynamic performance views
Managing Users, Roles, and Privileges	- Create and manage roles - Grant and revoke privileges - Create and manage database user accounts - Differentiate system privileges and object privileges
Using the Set Operators	- Use set operators to combine multiple queries into a single query - Describe set operators (UNION, UNION ALL, INTERSECT, MINUS)
Reporting Aggregated Data Using the Group Functions	- Use the GROUP BY clause to group data - Describe group functions (AVG, SUM, MIN, MAX, COUNT) - Use the HAVING clause to filter grouped data

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Oracle Database Administration I Sample Questions (Q80-Q85):

NEW QUESTION # 80
Examine the description of the EMPLOYEES table:

Which query is valid?

A. SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;
B. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;
C. SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;
D. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id;

Answer: D

NEW QUESTION # 81
Evaluate these commands which execute successfully:

Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence? (Choose two.)

A. Column ORD_NO gets the next number from sequence ORD_SEQ whenever a row is inserted into ORD_ITEMS and no explicit value is given for ORD_NO
B. Sequence ORD_SEQ is guaranteed not to generate duplicate numbers
C. Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ
D. Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times
E. If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS

Answer: B,C

NEW QUESTION # 82
Which three statements are true about single-row functions? (Choose three.)

A. They can accept only one argument
B. They return a single result row per table
C. The argument can be a column name, variable, literal or an expression
D. They can be nested to any level
E. The data type returned can be different from the data type of the argument
F. They can be used only in the WHERE clause of a SELECT statement

Answer: C,D,E

NEW QUESTION # 83
Which statement is true about aggregate functions?

A. Aggregate functions can be used in any clause of a SELECT statement
B. Aggregate functions can be nested to any number of levels
C. The MAX and MIN functions can be used on columns with character data types
D. The AVG function implicitly converts NULLS to zero

Answer: B

NEW QUESTION # 84
Examine this SQL statement:
SELECT cust_id, cust_last_name "Last Name"
FROM customers
WHERE country_id = 10
UNION
SELECT cust_id CUST_NO, cust_last_name
FROM customers
WHERE country_id = 30
Identify three ORDER BY clauses, any one of which can complete the query successfully. (Choose three.)

A. ORDER BY "Last Name"
B. ORDER BY 2, 1
C. ORDER BY CUST_NO
D. ORDER BY "CUST_NO"
E. ORDER BY 2, cust_id

Answer: B,C,E

NEW QUESTION # 85
......

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