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| Section | Objectives |
|---|---|
| Restricting and Sorting Data | - Use the BETWEEN comparator - Use comparison operators and logical operators (AND, OR, NOT) - Use the LIKE and IN operators - Use the NULL operators (IS NULL, IS NOT NULL) - Sort data using the ORDER BY clause - Use the WHERE clause to limit retrieved rows |
| Managing Schema Objects | - Create indexes and views - Manage sequences and synonyms - Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) - Create and modify tables |
| Introduction to Oracle Database | - Explain Oracle Database server architecture - Describe Oracle Database instance and memory structures - Describe Oracle Database architecture - Explain database storage structures (data blocks, segments, tablespaces, data files) - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) - Describe Oracle Database Cloud Service (DBCS) architecture and features |
| Understanding Oracle Database Architecture - Database Storage Structures | - Describe the logical and physical database structures - Create and manage tablespaces - Manage space in tablespaces - Describe tablespaces and data files |
| Using Subqueries to Solve Queries | - Use scalar subqueries in SQL - Define subqueries - Use single-row subqueries with single-row and multiple-row operators - Use multiple-row subqueries with multiple-row operators (IN, ANY, ALL) - Describe the types of subqueries (single-row, multi-row, multiple-column) - Use subqueries in the WHERE clause and HAVING clause |
| Using Conversion Functions and Conditional Expressions | - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Apply the NVL, NULLIF, and COALESCE functions - Use nested functions - Use the CAST function for data type conversion |
| Reporting Aggregated Data Using the Group Functions | - Describe group functions (AVG, SUM, MIN, MAX, COUNT) - Use the GROUP BY clause to group data - Use the HAVING clause to filter grouped data |
| Understanding Oracle Database Architecture - Oracle Database Instance | - Describe the background processes - Explain the memory structures (SGA, PGA) - Understand Oracle Database instance management |
| Using the Set Operators | - Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) - Use set operators to combine multiple queries into a single query |
| Managing Oracle Database Instances | - Use the Automatic Diagnostic Repository (ADR) - View the alert log and access dynamic performance views - Manage initialization parameter files (SPFILE, PFILE) - Start up and shut down an Oracle Database instance |
| Retrieving Data using the SQL SELECT Statement | - Execute a basic SELECT statement - Use scalar and correlated subqueries - Use SQL row functions (character, number, date, conversion, general) - Describe how schema objects work - Use the ORDER BY clause - List the capabilities of SQL SELECT statements |
| 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 |
| Working with Oracle Cloud Exadata Express Cloud Service | - Navigate the Exadata Express Cloud Service console - Identify the prerequisites for Exadata Express Cloud Service - Provision and manage an Exadata Express Cloud Service instance - Describe the features and benefits of Exadata Express Cloud Service |
| 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) |
| Displaying Data from Multiple Tables Using Joins | - Describe different types of joins and their features - Use CROSS joins - Use OUTER joins (LEFT, RIGHT, FULL) - Use Equijoins and Non-equijoins - Join a table to itself using self-join |
| Using Single-Row Functions to Customize Output | - Use CASE and DECODE for conditional expressions - Use character, number, and date functions in SELECT statements - Describe various types of functions available in SQL - Describe the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) |
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NEW QUESTION # 40
Which three object types support deferred segment creation? (Choose three.)
Answer: A,C,F
NEW QUESTION # 41
In the ORCL database, UNDOTBS1 is the active undo tablespace with these properties:
1. A size of 100 MB
2. AUTOEXTEND is off
3. UNDO_RETENTION is set to 15 minutes
4. It has RETENTION GUARANTEE
UNDOTBS1 fills with uncommitted undo 10 minutes after the database opens.
What will happen when the next update is attempted by any transaction?
Answer: D
Explanation:
To guarantee the success of long-running queries or Oracle Flashback operations, you can enable retention guarantee. If retention guarantee is enabled, the specified minimum undo retention is guaranteed; the database never overwrites unexpired undo data even if it means that transactions fail due to lack of space in the undo tablespace. If retention guarantee is not enabled, the database can overwrite unexpired undo when space is low, thus lowering the undo retention for the system. This option is disabled by default.
NEW QUESTION # 42
You have been tasked to create a table for a banking application.
One of the columns must meet three requirements:
1. Be stored in a format supporting date arithmetic without using
conversion functions
2. Store a loan period of up to 10 years
3. Be used for calculating interest for the number of days the loan
remains unpaid
Which data type should you use?
Answer: A
NEW QUESTION # 43
Which three Oracle database space management features will work with both Dictionary and Locally managed tablespaces? (Choose three.)
Answer: A,B,C
NEW QUESTION # 44
Which two are true about a SQL statement using SET operators such as UNION? (Choose two.)
Answer: A,E
NEW QUESTION # 45
......
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