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The organization charges nominal assessment fees. A single attempt fee is charged at the time of the attempt. The average number of attempts a candidate can take before being required to make a payment is unlimited.
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The Oracle certification program is a worldwide program and there is a network of many different types of certifications available from Oracle. The 1Z0-071 exam is the first exam in the SQL Practice certification track. This track is meant for people who plan to build their career in SQL administration and want to specialize in managing the RDBMS with Oracle Community Platform, Enterprise Edition.
ORACLE 1Z0-071 Certification Exam is a certification exam for Oracle Database Administration, DBA. Oracle Database Administration, DBA certification proves that applicants have the skills and detailed knowledge needed to manage a company database resources. It is an important credential in the IT industry as it shows competencies of job positions such as application developers, database administrators, and IT managers. This is an online test preloaded with multiple-choice questions which are all included in Oracle 1Z0-071 Dumps. You have to select actual and relevant answers. Prepare yourself for this exam Guide by practicing with this assessment of the top websites to prepare for the 1Z0-071 exam.
Oracle 1z0-071日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| 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 |
| Displaying Data from Multiple Tables Using Joins | 15% | - Cross join tables - Join a table to itself by using a self-join - View data that does not meet a join condition by using outer joins - Write SELECT statements to access data from more than one table using equijoins and non-equijoins |
| Using Single-Row Functions to Customize Output | 10% | - Perform arithmetic with date data - Manipulate dates with the date functions - Describe the differences between single-row and multiple-row functions - Manipulate strings with character function in the SELECT and WHERE clauses - Manipulate numbers with the ROUND, TRUNC, and MOD functions |
| Using Set Operators | 5% | - Describe set operators - Use a set operator to combine multiple queries into a single query - Describe the order of precedence when the set operators are used |
| Reporting Aggregated Data Using Group Functions | 15% | - Group data by using the GROUP BY clause - Include or exclude grouped rows by using the HAVING clause - Describe the use of group functions - Identify the available group functions |
| Retrieving Data Using the SQL SELECT Statement | 5% | - List the capabilities of SQL SELECT statements - Differentiate between SQL statements and SQL*Plus commands - Execute a basic SELECT statement |
| Using DDL Statements to Create and Manage Tables | 14% | - Create a simple table - Drop, rename, and truncate tables - Categorize the main database objects - Describe the data types that are available for columns - Review the table structure - Alter table definitions |
| Working with Oracle Database SQL | 8% | - Describe the Oracle Database architecture - Start up and shut down a database - Explain the installation of Oracle Database software - Create a container database |
| Manipulating Data | 14% | - Delete rows from a table - Control transactions - Update rows in a table - Insert rows into a table - Describe each data manipulation language (DML) statement |
| Restricting and Sorting Data | 6% | - Sort the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands - Limit the rows that are retrieved by a query - Use ampersand substitution to restrict and sort output at runtime |
| Using Conversion Functions and Conditional Expressions | 10% | - Apply the NVL, NULLIF, and COALESCE functions to data - Use conditional IF THEN ELSE logic in a SELECT statement - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Describe implicit and explicit data type conversion |
| Controlling User Access | 5% | - Grant privileges on tables and on a view - Differentiate system privileges from object privileges - Distinguish between granting privileges and roles |
| Creating Other Schema Objects | 10% | - Create synonyms for database objects - Create, modify, and retrieve data from a view - Create and maintain indexes - Create, maintain, and use sequences |
Oracle Database SQL (1z0-071日本語版) Sample Questions:
PRODUCTSテーブルの説明を確認してください。
このテーブルには、すべての列にデータを持つ行が存在します。PRODUCTSテーブルを読み取り専用モードに設定しました。
PRODUCTS上で正常に実行されるコマンドを3つ選択してください。
- A. ALTER TABLE products DROP COLUMN expiry_date;
- B. 切り捨てテーブル製品
- C. ドロップテーブル製品
- D. CREATE INDEX price_idx ON products (price);
- E. ALTER TABLE products SET UNUSED (expiry_date);
- F. ALTER TABLE products DROP UNUSED COLUMS;
Correct Answer: B,C,D 🗳️
ORDERSテーブルには、ORDER_ID列に主キー制約が設定されています。
ORDER_ITEMSテーブルのORDER_ID列には、ORDERSテーブルの主キーを参照する外部キー制約が設定されています。
この制約は ON DELETE CASCADE で定義されています。
ORDERSテーブルには、ORDER_TOTALが1000未満の行が存在します。
どの3つのDELETE文が正常に実行されますか？
- A. DELETE * FROM orders WHERE order_total < 1000;
- B. 注文から削除します。
- C. 注文合計が 1000 未満の注文を削除します。
- D. order_total < 1000 の orders テーブルから削除します。
- E. order_id を orders から削除します。ただし、order_total が 1000 未満である必要があります。
Correct Answer: C,E 🗳️
制約条件に関して正しい記述はどれですか？(2つ選択してください。)
- A. 制約列にデータが含まれていても、制約を無効にすることができます。
- B. すべての制約は、列レベルとテーブルレベルで定義できます。
- C. 制約はINSERT操作に対してのみ適用されます。
- D. UNIQUE制約を持つ列にはNULL値を含めることができます。
- E. 外部キー列にはNULLを含めることはできません。
Correct Answer: A,D 🗳️
顧客テーブルの説明を確認してください。
これらの結果を返すSELECT文はどれですか？(2つ選択してください。)
- A. SELECT customer_name FROM customers WHERE customer_name LIKE `%a%';
- B. SELECT customer_name FROM customers WHERE customer_name LIKE `*Ma*';
- C. SELECT customer_name FROM customers WHERE customer_name LIKE `Ma*';
- D. SELECT customer_name FROM customers WHERE customer_name = `*Ma*';
- E. SELECT customer_name FROM customers WHERE UPPER (customer_name) LIKE `MA%';
- F. SELECT customer_name FROM customers WHERE UPPER (customer_name) LIKE `MA*';
- G. SELECT customer_name FROM customers WHERE customer_name LIKE `Ma%';
Correct Answer: E,F 🗳️
Explanation: Only visible for PassCollection members. You can sign-up / login (it's free).
複合クエリで使用されるINTERSECT演算子について、正しい記述はどれですか？
- A. NULL値を無視します。
- B. INTERSECT は UNION または UNION ALL よりも優先順位が低くなります。
- C. 選択された列のNULL値を処理します。
- D. 同じ SQL ステートメント内で複数の INTERSECT 演算子を使用することはできません。
Correct Answer: C 🗳️
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