높은통과율1z1-071최고덤프자료덤프문제

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Oracle 1z1-071 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Working with Oracle Database SQL	8%	- Describe the Oracle Database architecture - Create a container database - Start up and shut down a database - Explain the installation of Oracle Database software
Topic 2: Creating Other Schema Objects	10%	- Create, modify, and retrieve data from a view - Create, maintain, and use sequences - Create and maintain indexes - Create synonyms for database objects
Topic 3: Using Subqueries to Solve Queries	15%	- Describe the types of problems that subqueries can solve - Write single-row and multi-row subqueries - Define subqueries - List the types of subqueries
Topic 4: Using Conversion Functions and Conditional Expressions	10%	- Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Apply the NVL, NULLIF, and COALESCE functions to data - Use conditional IF THEN ELSE logic in a SELECT statement - Describe implicit and explicit data type conversion
Topic 5: Using Single-Row Functions to Customize Output	10%	- Perform arithmetic with date data - Manipulate strings with character function in the SELECT and WHERE clauses - Describe the differences between single-row and multiple-row functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Manipulate dates with the date functions
Topic 6: Controlling User Access	5%	- Grant privileges on tables and on a view - Distinguish between granting privileges and roles - Differentiate system privileges from object privileges
Topic 7: Restricting and Sorting Data	6%	- Limit the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands - Use ampersand substitution to restrict and sort output at runtime - Sort the rows that are retrieved by a query
Topic 8: Reporting Aggregated Data Using Group Functions	15%	- Group data by using the GROUP BY clause - Describe the use of group functions - Identify the available group functions - Include or exclude grouped rows by using the HAVING clause
Topic 9: Displaying Data from Multiple Tables Using Joins	15%	- Join a table to itself by using a self-join - 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 - Cross join tables
Topic 10: Manipulating Data	14%	- Update rows in a table - Insert rows into a table - Control transactions - Delete rows from a table - Describe each data manipulation language (DML) statement
Topic 11: Retrieving Data Using the SQL SELECT Statement	5%	- Differentiate between SQL statements and SQL*Plus commands - Execute a basic SELECT statement - List the capabilities of SQL SELECT statements
Topic 12: Using DDL Statements to Create and Manage Tables	14%	- Review the table structure - Categorize the main database objects - Create a simple table - Drop, rename, and truncate tables - Describe the data types that are available for columns - Alter table definitions
Topic 13: Using Set Operators	5%	- Describe the order of precedence when the set operators are used - Describe set operators - Use a set operator to combine multiple queries into a single query

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1z1-071최고덤프자료 인기자격증 시험덤프데모

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최신 Oracle PL/SQL Developer Certified Associate 1z1-071 무료샘플문제 (Q359-Q364):

질문 # 359
Evaluate the following query:

What would be the outcome of the above query?

A. It executes successfully and displays the literal " {'s start date was \> "for each row in the output.
B. It executes successfully and introduces an 'sat the end of each promo_namein the output.
C. It produces an error because the data types are not matching.
D. It produces an error because flower braces have been used.

정답：B

질문 # 360
View the Exhibit and examine the description of the tables.

You execute this SQL statement:

Which three statements are true? (Choose three.)

A. A product can have a different unit price at different times.
B. The statement will fail if a row already exists in the SALES table for product 23.
C. A customer can exist in many countries.
D. The SALES table has five foreign keys.
E. The statement will fail because a subquery may not be contained in a VALUES clause.
F. The statement will execute successfully and a new row will be inserted into the SALES table.

정답：C,D,F

질문 # 361
Examine this partial query:
SELECT ch.channel_type, t.month, co.country_code, SUM(s.amount_sold) SALES FROM sales s, times t, channels ch, countries co WHERE s.time_ id = t.time id AND s.country_ id = co. country id AND s. channel id = ch.channel id AND ch.channel type IN ('Direct Sales', 'Internet') AND t.month IN ('2000-09', '2000-10') AND co.country code IN ('GB', 'US') Examine this output:

Which GROUP BY clause must be added so the query returns the results shown?

A. GROUP BY ch.channel_type,ROLLUP (t month, co. country_ code) ;
B. GROUP BY CUBE (ch. channel_ type, t .month, co. country code);
C. GROUP BY ch.channel_type, t.month, co.country code;
D. GROUP BYch. channel_ type, t.month,ROLIUP (co. country_ code) ;

정답：A

질문 # 362
Which two are true?

A. CONCAT joins two character strings together.
B. INSTR finds the offset within a character string, starting from position 0.
C. FLOOR returns the largest positive integer less than or equal to a specified number.
D. INSTR finds the offset within a string of a single character only.
E. CONCAT joins two or more character strings together.
F. FLOOR returns the largest integer less than or equal to a specified number.

정답：E,F

설명：
The CONCAT function and FLOOR function in Oracle SQL have specific behaviors:
A). CONCAT function joins two or more character strings into one string, making this statement true.
B). FLOOR function returns the largest integer that is less than or equal to the specified number, making this statement true.
C). While CONCAT can join two strings together, this statement is incomplete as it can join more than two.
D). INSTR can find the offset of a substring within a string, not just a single character.
E). INSTR starts searching the string from position 1 in Oracle SQL, not position 0.
F). FLOOR does return the largest integer less than or equal to the specified number, but it can be any integer, not just positive ones.
References:
* Oracle Database SQL Language Reference, 12c Release 1 (12.1): "Single-Row Functions"

질문 # 363
Examine this SQL statement
DELETE FROM employees e
WHERE EXISTS
(SELECT' dummy'
FROM emp history
WHERE employee_ id= e. employee id);
Which two are true?

A. The DELETE statement executes successfully even if the subquery selects multiple rows.
B. The subquery is executed before the DELETE statement is executed.
C. The subquery is executed for every row in the EMPLOYEES table.
D. All existing rows in the EMPLOYEES table are deleted,
E. The subquery is not a correlated subquery.

정답：A,C

질문 # 364
......

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