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Oracle 1z0-071日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using DDL Statements to Create and Manage Tables | 14% | - Create a simple table - Drop, rename, and truncate tables - Categorize the main database objects - Alter table definitions - Review the table structure - Describe the data types that are available for columns |
| Topic 2: Displaying Data from Multiple Tables Using Joins | 15% | - Write SELECT statements to access data from more than one table using equijoins and non-equijoins - View data that does not meet a join condition by using outer joins - Join a table to itself by using a self-join - Cross join tables |
| Topic 3: Retrieving Data Using the SQL SELECT Statement | 5% | - List the capabilities of SQL SELECT statements - Execute a basic SELECT statement - Differentiate between SQL statements and SQL*Plus commands |
| Topic 4: Using Conversion Functions and Conditional Expressions | 10% | - Apply the NVL, NULLIF, and COALESCE functions to data - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Use conditional IF THEN ELSE logic in a SELECT statement - Describe implicit and explicit data type conversion |
| Topic 5: Manipulating Data | 14% | - Update rows in a table - Control transactions - Describe each data manipulation language (DML) statement - Insert rows into a table - Delete rows from a table |
| Topic 6: Using Single-Row Functions to Customize Output | 10% | - Manipulate dates with the date functions - Describe the differences between single-row and multiple-row functions - Perform arithmetic with date data - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Manipulate strings with character function in the SELECT and WHERE clauses |
| Topic 7: Creating Other Schema Objects | 10% | - Create, maintain, and use sequences - Create, modify, and retrieve data from a view - Create and maintain indexes - Create synonyms for database objects |
| Topic 8: Reporting Aggregated Data Using Group Functions | 15% | - Group data by using the GROUP BY clause - Describe the use of group functions - Include or exclude grouped rows by using the HAVING clause - Identify the available group functions |
| Topic 9: Using Set Operators | 5% | - Use a set operator to combine multiple queries into a single query - Describe the order of precedence when the set operators are used - Describe set operators |
| Topic 10: Using Subqueries to Solve Queries | 15% | - Write single-row and multi-row subqueries - List the types of subqueries - Describe the types of problems that subqueries can solve - Define subqueries |
| Topic 11: Restricting and Sorting Data | 6% | - Use DEFINE and UNDEFINE commands - Limit the rows that are retrieved by a query - Use ampersand substitution to restrict and sort output at runtime - Sort the rows that are retrieved by a query |
| Topic 12: Working with Oracle Database SQL | 8% | - Explain the installation of Oracle Database software - Start up and shut down a database - Create a container database - Describe the Oracle Database architecture |
| Topic 13: Controlling User Access | 5% | - Differentiate system privileges from object privileges - Distinguish between granting privileges and roles - Grant privileges on tables and on a view |
Your 1z0-071日本語 Exam Questions, Answered
The Oracle Database SQL (1z0-071日本語版) exam (code: 1z0-071日本語) is the official Oracle exam that leads to the Oracle PL/SQL Developer Certified Associate certification. It sits at the Associate level of the Oracle certification track. It is also connected with related credentials such as Oracle Database Administrator Certified Associate (DBA), Oracle Database SQL Certified Associate. Passing it proves to employers that your skills have been validated by Oracle itself, which is why the 1z0-071日本語 credential keeps showing up in job postings.
The Oracle Database SQL (1z0-071日本語版) exam gives you 120 minutes to work through 70. Pacing matters more than most candidates expect, so before exam day, run at least one full timed session in the ExamTorrent test engine to learn how long you can afford per question. If an item stalls you, flag it and move on — coming back later beats burning five minutes on a single question.
The passing score for the Oracle Database SQL (1z0-071日本語版) exam is 63%, and the official registration fee is $245 USD. Remember that a failed attempt means paying that fee in full again, so a timed self-assessment with ExamTorrent practice questions about a week before your exam date is a cheap way to confirm you are scoring comfortably above 63%.
According to Oracle, the following applies: No formal prerequisites required, but basic knowledge of relational database concepts is recommended. Certification policies do change from time to time, so confirm the latest requirements on the official exam page at https://education.oracle.com/oracle-database-sql-exam before you register.
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The official Oracle Database SQL (1z0-071日本語版) syllabus is organized into 13 main domains. The first three are Displaying Data from Multiple Tables Using Joins (15%), Using Set Operators (5%), and Reporting Aggregated Data Using Group Functions (15%). For the full domain-by-domain breakdown, see the complete Exam Topics outline above.
Oracle Database SQL (1z0-071日本語版) Sample Questions:
ORDERSテーブルの構造を調べてください。(最適な回答を選択してください。)
各年の全注文の合計金額を求めたい場合は、以下のコマンドを実行してください。
SQL> SELECT TO_CHAR(order_date,'rr'),
SUM(order_total) FROM orders
TO_CHAR(order_date, 'yyyy')でグループ化します。
結果に関して、次のうち正しい記述はどれですか？
- A. SELECT リストのデータ型変換が GROUP BY 句のデータ型変換と一致しないため、エラーが返されます。
- B. TO_CHAR関数が無効であるため、エラーが返されます。
- C. 正常に実行されますが、正しい出力が得られません。
- D. 正常に実行され、正しい出力が得られます。
Correct Answer: A 🗳️
あなたは以下のコマンドを実行しました。
SQL> DROP TABLE employees;
次の3つの記述のうち、正しいものはどれですか？
- A. 従業員の机はリサイクルボックスに移動されました。
- B. 従業員テーブルで使用されているシーケンスが無効になります。
- C. ロールバックコマンドを使用して従業員テーブルを復元できます。
- D. 未コミットのトランザクションはすべてコミットされます。
- E. 削除対象のテーブルに定義されているすべてのインデックスと制約も削除されます。
- F. 従業員のテーブルが使用していたスペースはすぐに再利用されます。
Correct Answer: A,D,E 🗳️
PROGRAMSテーブルの構造を調べてください。
どの2つのSQL文が正常に実行されるでしょうか？
- A. SELECT NVL (TO_CHAR (MONTHS_BETWEEN (start-date, end_date)), `Ongoing') FROM programs
- B. SELECT NVL (MONTHS_BETWEEN (start_date, end_date), `Ongoing') FROM programs;
- C. SELECT NVL (ADD_MONTHS (END_DATE,1) SYSDATE) FROM programs;
- D. SELECT TO_DATE (NVL (SYSDATE-END_DATE, SYSDATE)) FROM programs;
Correct Answer: A,C 🗳️
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データ型に関して、正しい記述は次のうちどれですか？(３つ選択)
- A. varchar2 データ型の列に指定できる最小列幅は 1 です。
- B. CHARデータ型の列の値は、定義された最大列幅まで空白で埋められます。
- C. ATIMESTAMPデータ型の列には、秒の小数を含む時間値のみが格納されます。
- D. BLOBデータ型の列は、オペレーティングシステムファイルにバイナリデータを格納するために使用されます。
- E. テーブルごとに使用できるLONG列は1つだけです。
Correct Answer: A,B,E 🗳️
展示資料を参照し、EMPテーブルとDEPTテーブルのデータを確認してください。
DEPTテーブルでは、DEPTNOが主キーです。
EMPテーブルでは、EMPNOが主キーであり、DEPTNOはDEPTテーブルのDEPTNO列を参照する外部キーです。
以下のステートメントを指定された順序で実行した場合、どのような結果になるでしょうか？
DROP TABLE emp;
フラッシュバックテーブルempをドロップ前に移動します。
INSERT INTO emp VALUES (2, 'SCOTT', 10);
INSERT INTO emp VALUES (3, 'KING', 55);
- A. テーブルがフラッシュバックされた後、主キー制約を除くすべての制約が自動的に取得されるため、最初の INSERT ステートメントのみが成功します。
- B. テーブルがフラッシュバックされると制約が自動的に取得されるため、どちらの INSERT ステートメントも失敗します。
- C. テーブルがフラッシュバックされた後、他のテーブルを参照する参照整合性制約を除くすべての制約が自動的に取得されるため、2 番目の INSERT ステートメントのみが成功します。
- D. テーブルがフラッシュバックされる際に、テーブルに対する制約は自動的に取得されないため、どちらのINSERT文も成功します。
Correct Answer: C 🗳️
