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| Section | Objectives |
|---|---|
| Reporting Aggregated Data Using the Group Functions | - Use the HAVING clause to filter grouped data - Describe group functions (AVG, SUM, MIN, MAX, COUNT) - Use the GROUP BY clause to group data |
| Introduction to Oracle Database | - Describe Oracle Database architecture - Describe Oracle Database Cloud Service (DBCS) architecture and features - Explain database storage structures (data blocks, segments, tablespaces, data files) - Describe Oracle Database instance and memory structures - Explain Oracle Database server architecture - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) |
| Retrieving Data using the SQL SELECT Statement | - Use the ORDER BY clause - Describe how schema objects work - Use scalar and correlated subqueries - Use SQL row functions (character, number, date, conversion, general) - Execute a basic SELECT statement - List the capabilities of SQL SELECT statements |
| Displaying Data from Multiple Tables Using Joins | - Describe different types of joins and their features - Join a table to itself using self-join - Use OUTER joins (LEFT, RIGHT, FULL) - Use Equijoins and Non-equijoins - Use CROSS joins |
| 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) |
| 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 |
| Managing Users, Roles, and Privileges | - Create and manage database user accounts - Create and manage roles - Differentiate system privileges and object privileges - Grant and revoke privileges |
| Understanding Oracle Database Architecture - Oracle Database Instance | - Understand Oracle Database instance management - Describe the background processes - Explain the memory structures (SGA, PGA) |
| 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 Schema Objects | - Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) - Create and modify tables - Manage sequences and synonyms - Create indexes and views |
| 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 |
| Using the Set Operators | - Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) - Use set operators to combine multiple queries into a single query |
| Restricting and Sorting Data | - Use the WHERE clause to limit retrieved rows - Use the BETWEEN comparator - Use the LIKE and IN operators - Use comparison operators and logical operators (AND, OR, NOT) - Sort data using the ORDER BY clause - Use the NULL operators (IS NULL, IS NOT NULL) |
| Using Single-Row Functions to Customize Output | - Use character, number, and date functions in SELECT statements - Describe various types of functions available in SQL - Use CASE and DECODE for conditional expressions - Describe the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) |
| Working with Oracle Cloud Exadata Express Cloud Service | - Describe the features and benefits of Exadata Express Cloud Service - Provision and manage an Exadata Express Cloud Service instance - Identify the prerequisites for Exadata Express Cloud Service - Navigate the Exadata Express Cloud Service console |
| 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 - Use subqueries in the WHERE clause and HAVING clause - Use scalar subqueries in SQL - Describe the types of subqueries (single-row, multi-row, multiple-column) - Define subqueries |
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NEW QUESTION # 57
You want to write a query that prompts for two column names and the WHERE condition each time it is executed in a session but only prompts for the table name the first time it is executed.
The variables used in your query are never undefined in your session.
Which query can be used?
Answer: A
NEW QUESTION # 58
Which statement is true about aggregate functions?
Answer: D
NEW QUESTION # 59
Which two statements are true about single row functions? (Choose two.)
Answer: C,E
Explanation:
Explanation/Reference: https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/Single-Row- Functions.html#GUID-B93F789D-B486-49FF-B0CD-0C6181C5D85C
NEW QUESTION # 60
Examine these commands:
Which two statements are true about the sqiidr execution?
Answer: B,E
NEW QUESTION # 61
Which two statements are true about the DUAL table? (Choose two.)
Answer: A,B
Explanation:
Explanation/Reference: https://en.wikipedia.org/wiki/DUAL_table
NEW QUESTION # 62
......
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