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| Section | Objectives |
|---|---|
| Using Subqueries to Solve Queries | - Use multiple-row subqueries with multiple-row operators (IN, ANY, ALL) - Describe the types of subqueries (single-row, multi-row, multiple-column) - Use scalar subqueries in SQL - Use subqueries in the WHERE clause and HAVING clause - Define subqueries - Use single-row subqueries with single-row and multiple-row operators |
| Using Single-Row Functions to Customize Output | - Describe the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) - Use character, number, and date functions in SELECT statements - Describe various types of functions available in SQL - Use CASE and DECODE for conditional expressions |
| Introduction to Oracle Database | - Describe Oracle Database instance and memory structures - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) - Explain database storage structures (data blocks, segments, tablespaces, data files) - Describe Oracle Database Cloud Service (DBCS) architecture and features - Explain Oracle Database server architecture - Describe Oracle Database architecture |
| Managing Oracle Database Instances | - View the alert log and access dynamic performance views - Use the Automatic Diagnostic Repository (ADR) - Start up and shut down an Oracle Database instance - Manage initialization parameter files (SPFILE, PFILE) |
| Using the Set Operators | - Use set operators to combine multiple queries into a single query - Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) |
| Understanding Oracle Database Architecture - Database Storage Structures | - Create and manage tablespaces - Manage space in tablespaces - Describe tablespaces and data files - Describe the logical and physical database structures |
| Managing Users, Roles, and Privileges | - Create and manage roles - Differentiate system privileges and object privileges - Create and manage database user accounts - Grant and revoke privileges |
| Managing Schema Objects | - Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) - Manage sequences and synonyms - Create indexes and views - Create and modify tables |
| Restricting and Sorting Data | - Sort data using the ORDER BY clause - Use the NULL operators (IS NULL, IS NOT NULL) - Use the LIKE and IN operators - Use the BETWEEN comparator - Use the WHERE clause to limit retrieved rows - Use comparison operators and logical operators (AND, OR, NOT) |
| Understanding Oracle Database Architecture - Oracle Database Instance | - Describe the background processes - Understand Oracle Database instance management - Explain the memory structures (SGA, PGA) |
| Displaying Data from Multiple Tables Using Joins | - Use CROSS joins - Use Equijoins and Non-equijoins - Describe different types of joins and their features - Use OUTER joins (LEFT, RIGHT, FULL) - Join a table to itself using self-join |
| Reporting Aggregated Data Using the Group Functions | - Describe group functions (AVG, SUM, MIN, MAX, COUNT) - Use the HAVING clause to filter grouped data - Use the GROUP BY clause to group data |
| Managing Data in Different Time Zones | - Explain the concepts of time zones and daylight savings - Describe the use of datetime functions (CURRENT_DATE, EXTRACT, LOCALTIMESTAMP) - Use various datetime data types (DATE, TIMESTAMP, INTERVAL) |
| Working with Oracle Cloud Exadata Express Cloud Service | - Provision and manage an Exadata Express Cloud Service instance - Navigate the Exadata Express Cloud Service console - Identify the prerequisites for Exadata Express Cloud Service - Describe the features and benefits of Exadata Express Cloud Service |
| Retrieving Data using the SQL SELECT Statement | - Describe how schema objects work - Use scalar and correlated subqueries - Execute a basic SELECT statement - List the capabilities of SQL SELECT statements - Use SQL row functions (character, number, date, conversion, general) - Use the ORDER BY clause |
| 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 |
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NEW QUESTION # 92
Examine the description of the BOOKS table:
The table has 100 rows.
Examine this sequence of statements issued in a new session:
INSERT INTO books VALUES ('ADV112', 'Adventures of Tom Sawyer', NULL, NULL); SAVEPOINT a; DELETE FROM books; ROLLBACK TO SAVEPOINT a; ROLLBACK; Which two statements are true? (Choose two.)
Answer: B,C
NEW QUESTION # 93
Which three are types of segments in an Oracle Database? (Choose three.)
Answer: B,E,F
Explanation:
http://www.adp-gmbh.ch/ora/concepts/segments.html
NEW QUESTION # 94
Which two are true about complete and incomplete recovery? (Choose two.)
Answer: B,C
NEW QUESTION # 95
Which two statements are true about single row functions? (Choose two.)
Answer: B,C
NEW QUESTION # 96
Examine the description of the CUSTOMERS table:
For customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?
Answer: B
NEW QUESTION # 97
......
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