1z0-071テスト資料 & 1z0-071無料試験

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1z0-071試験に合格すると多くのメリットが得られることは誰もが知っていますが、Oracleすべての受験者がそれを達成するのは容易ではありません。 1z0-071ガイド急流は、すべての受験者が試験に合格するのを支援することを目的としたツールです。私たちの試験資料は、コンピュータと人の量に制限なしでインストールおよびダウンロードできます。弊社が提供する1z0-071学習資料が有用であり、テストに合格するのに役立つことを保証します。製品を購入すると、便利な方法を使用して、いつでもどこでも1z0-071試験トレントを学習できます。そのため、購入の前後に安心して、1z0-071学習教材にウイルスがないことを信頼してください。 Oracle Database SQL当社の製品Fast2testに慣れるために、1z0-071学習教材の機能と利点を次のようにリストします。

Oracle 1z0-071 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Using Single-Row Functions to Customize Output	10%	- Manipulate numbers with the ROUND, TRUNC, and MOD functions - Manipulate strings with character function in the SELECT and WHERE clauses - Perform arithmetic with date data - Manipulate dates with the date functions - Describe the differences between single-row and multiple-row functions
Topic 2: Controlling User Access	5%	- Differentiate system privileges from object privileges - Grant privileges on tables and on a view - Distinguish between granting privileges and roles
Topic 3: Manipulating Data	14%	- Update rows in a table - Describe each data manipulation language (DML) statement - Control transactions - Insert rows into a table - Delete rows from a table
Topic 4: Reporting Aggregated Data Using Group Functions	15%	- Describe the use of group functions - Include or exclude grouped rows by using the HAVING clause - Identify the available group functions - Group data by using the GROUP BY clause
Topic 5: Retrieving Data Using the SQL SELECT Statement	5%	- Differentiate between SQL statements and SQL*Plus commands - List the capabilities of SQL SELECT statements - Execute a basic SELECT statement
Topic 6: Working with Oracle Database SQL	8%	- Create a container database - Describe the Oracle Database architecture - Start up and shut down a database - Explain the installation of Oracle Database software
Topic 7: Using DDL Statements to Create and Manage Tables	14%	- Describe the data types that are available for columns - Review the table structure - Create a simple table - Categorize the main database objects - Drop, rename, and truncate tables - Alter table definitions
Topic 8: Using Subqueries to Solve Queries	15%	- Write single-row and multi-row subqueries - Define subqueries - Describe the types of problems that subqueries can solve - List the types of subqueries
Topic 9: Restricting and Sorting Data	6%	- Sort the rows that are retrieved by a query - Use ampersand substitution to restrict and sort output at runtime - Use DEFINE and UNDEFINE commands - Limit the rows that are retrieved by a query
Topic 10: Creating Other Schema Objects	10%	- Create and maintain indexes - Create synonyms for database objects - Create, maintain, and use sequences - Create, modify, and retrieve data from a view
Topic 11: Displaying Data from Multiple Tables Using Joins	15%	- View data that does not meet a join condition by using outer joins - Cross join tables - Write SELECT statements to access data from more than one table using equijoins and non-equijoins - Join a table to itself by using a self-join
Topic 12: Using Conversion Functions and Conditional Expressions	10%	- Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Use conditional IF THEN ELSE logic in a SELECT statement - Apply the NVL, NULLIF, and COALESCE functions to data - Describe implicit and explicit data type conversion
Topic 13: Using Set Operators	5%	- Describe the order of precedence when the set operators are used - Use a set operator to combine multiple queries into a single query - Describe set operators

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Oracle Database SQL 認定 1z0-071 試験問題 (Q153-Q158):

質問 # 153
Which three statements are true about dropping and unused columns in an Oracle database?

A. Partition key columns cannot be dropped.
B. An unused column's space is reclaimed automatically when the block containing that column is next queried.
C. A drop column command can be rolled back.
D. A primary key column referenced by another column as a foreign key can be dropped if using the cascade option.
E. An unused column's space is reclaimed automatically when the row containing that column is next queried.
F. A column that is set to unused still counts towards the limit of 1000 columns per table.

正解：A、B、F

質問 # 154
Examine the ORDER _ITEms table:

Which two queries return rows where QUANTITY is a multiple of ten?

A. SELECT * FROM order_ items WHERE MOD (quantity, 10) = 0;
B. SELECT FROM order_ items WHERE quantity / 10 = TRUNC (quantity);
C. SELECT" FROM order_ items WHERE FLOOR (quantity / 10) = TRUNC (quantity / 10);
D. SELECT * FROM order_ items WHERE quantity = TRUNC (quantity, -1);
E. SELECT" FROM order_ _items WHERE quantity = ROUND (quantity, 1);

正解：A、D

質問 # 155
View the Exhibit and examine the data in the PROMOTIONS table.

PROMO_BEGIN_DATE is stored in the default date format, dd-mon-rr.
You need to produce a report that provides the name, cost, and start date of all promos in the POST category that were launched before January 1, 2000.
Which SQL statement would you use?

A. SELECT promo_name, promo_cost, promo_begin_dateFROM promotionsWHERE promo_category LIKE 'P%' AND promo_begin_date < '1-JANUARY-00';
B. SELECT promo_name, promo_cost, promo_begin_dateFROM promotionsWHERE promo_cost LIKE
'post%' AND promo_begin_date < '01-01-2000';
C. SELECT promo_name, promo_cost, promo_begin_dateFROM promotionsWHERE promo_category LIKE '%post%' AND promo_begin_date < '1-JAN-00';
D. SELECT promo_name, promo_cost, promo_begin_dateFROM promotionsWHERE promo_category =
'post' AND promo_begin_date < '01-01-00';

正解：C

質問 # 156
Which three statements are true about inner and outer joins?

A. Outer joins can only be used between two tables per query.
B. A full outer join returns matched and unmatched rows.
C. An inner join returns matched rows.
D. A full outer join must use Oracle syntax.
E. Outer joins can be used when there are multiple join conditions on two tables.
F. A left or right outer join returns only unmatched rows.

正解：A、B、C

質問 # 157
Which two statements are true about outer Joins?

A. A condition representing an outer join cannot be linked to another condition using the or logical operator.
B. An outer join is used to retrieve only the rows that do not meet the join condition.
C. The outer join operator (+) can be used on both sides of the join condition in an outer join.
D. The IN operator cannot be used in a condition that Involves an outer join.
E. The outer join operator (+) is used next to the column of the table without the matching rows.

正解：A、E

解説：
Regarding the usage and rules of outer joins in SQL, specifically Oracle SQL:
D . A condition representing an outer join cannot be linked to another condition using the OR logical operator: In SQL, when using the Oracle-specific (+) notation for outer joins, it is not permitted to combine this condition with another using the OR operator. The use of (+) imposes restrictions to ensure the join logic is correctly interpreted.
E . The outer join operator (+) is used next to the column of the table without the matching rows: The (+) symbol in Oracle's SQL syntax denotes the table that should include "null" where data does not exist to satisfy the join condition, effectively including rows that do not have a match in the joined table.
Incorrect options:
A: The (+) operator cannot be used on both sides of a condition within the same join; it can only appear on one side to define which side of the join is the outer part.
B: An outer join is used to retrieve all rows from one table and the matched rows from the other table; it does not solely retrieve rows that do not meet the join condition.
C: The IN operator can be used in conditions involving an outer join, although specific rules and behaviors need to be considered depending on the SQL version and implementation.

質問 # 158
......

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