1Z1-082ブロンズ教材 & 1Z1-082試験勉強書

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Oracle 1Z1-082 Exam Syllabus Topics:

Section	Objectives
Topic 1: Using Conversion Functions and Conditional Expressions	- Use nested functions - Use the CAST function for data type conversion - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Apply the NVL, NULLIF, and COALESCE functions
Topic 2: Understanding Oracle Database Architecture - Database Storage Structures	- Manage space in tablespaces - Create and manage tablespaces - Describe tablespaces and data files - Describe the logical and physical database structures
Topic 3: Managing Data in Different Time Zones	- Use various datetime data types (DATE, TIMESTAMP, INTERVAL) - Describe the use of datetime functions (CURRENT_DATE, EXTRACT, LOCALTIMESTAMP) - Explain the concepts of time zones and daylight savings
Topic 4: Restricting and Sorting Data	- Use the WHERE clause to limit retrieved rows - Sort data using the ORDER BY clause - Use the LIKE and IN operators - Use the NULL operators (IS NULL, IS NOT NULL) - Use the BETWEEN comparator - Use comparison operators and logical operators (AND, OR, NOT)
Topic 5: Using Single-Row Functions to Customize Output	- Use character, number, and date functions in SELECT statements - Describe the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) - Describe various types of functions available in SQL - Use CASE and DECODE for conditional expressions
Topic 6: Working with Oracle Cloud Exadata Express Cloud Service	- Navigate the Exadata Express Cloud Service console - Provision and manage an Exadata Express Cloud Service instance - Identify the prerequisites for Exadata Express Cloud Service - Describe the features and benefits of Exadata Express Cloud Service
Topic 7: Using the Set Operators	- Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) - Use set operators to combine multiple queries into a single query
Topic 8: Managing Oracle Database Instances	- View the alert log and access dynamic performance views - Start up and shut down an Oracle Database instance - Manage initialization parameter files (SPFILE, PFILE) - Use the Automatic Diagnostic Repository (ADR)
Topic 9: Understanding Oracle Database Architecture - Oracle Database Instance	- Explain the memory structures (SGA, PGA) - Describe the background processes - Understand Oracle Database instance management
Topic 10: Using Subqueries to Solve Queries	- Use single-row subqueries with single-row and multiple-row operators - Describe the types of subqueries (single-row, multi-row, multiple-column) - Use multiple-row subqueries with multiple-row operators (IN, ANY, ALL) - Use scalar subqueries in SQL - Define subqueries - Use subqueries in the WHERE clause and HAVING clause
Topic 11: 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
Topic 12: Introduction to Oracle Database	- Describe Oracle Database instance and memory structures - Explain Oracle Database server architecture - 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 - Describe Oracle Database architecture
Topic 13: Managing Schema Objects	- Create and modify tables - Create indexes and views - Manage sequences and synonyms - Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK)
Topic 14: Retrieving Data using the SQL SELECT Statement	- Use SQL row functions (character, number, date, conversion, general) - List the capabilities of SQL SELECT statements - Execute a basic SELECT statement - Use scalar and correlated subqueries - Use the ORDER BY clause - Describe how schema objects work
Topic 15: Displaying Data from Multiple Tables Using Joins	- Join a table to itself using self-join - Use OUTER joins (LEFT, RIGHT, FULL) - Describe different types of joins and their features - Use Equijoins and Non-equijoins - Use CROSS joins
Topic 16: 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

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Oracle 1Z1-082ブロンズ教材: Oracle Database Administration I - CertJuken クリア試験をアシスト

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Oracle Database Administration I 認定 1Z1-082 試験問題 (Q57-Q62):

質問 # 57
Evaluate these commands which execute successfully:

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

A. If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS
B. 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
C. Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ
D. Sequence ORD_SEQ is guaranteed not to generate duplicate numbers
E. Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times

正解：C、D

質問 # 58
Your database instance is started with a PFILE.
Examine these parameters:

You want to increase the size of the buffer cache.
Free memory is available to increase the size of the buffer cache.
You execute the command:
SQL> ALTER SYSTEM SET DB_CACHE_SIZE=1024M;
What is the outcome?

A. It fails because the SCOPE clause is missing
B. The value is changed for the current instance and in the PFILE
C. The value is changed only in the PFILE and takes effect at the next instance startup
D. Change is applied to the current instance, but does not persist after instance restart

正解：D

解説：
Explanation/Reference: https://docs.oracle.com/database/121/SQLRF/statements_2017.htm#SQLRF00902

質問 # 59
Which statement is true about database links?

A. A database link can be created only between two Oracle databases.
B. Private database link creation requires the same user to exist in both the local and the remote databases.
C. A public database link can be created only by sys.
D. A database link created in a database allows a connection from that database's instance to the target database's Instance, but not vice versa.
E. A public database link can be used by a user connected to the local database instance to connect to any schema in the remote database instance.

正解：E

質問 # 60
Which statement is true about smallfile tablespaces?

A. Segments can span multiple tablespaces.
B. Maximum file size can be set to unlimited only if the logical volume manager supports striping.
C. The number of data files is constrained only by the size of the storage array.
D. Segments can span multiple data files.
E. Extent location metadata is stored in the data dictionary by default.

正解：D

質問 # 61
View the Exhibit and examine the structure of the PRODUCTS table.
Which two tasks require subqueries? (Choose two.)

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

正解：B、C

質問 # 62
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