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Oracle 1z0-071 Exam Syllabus Topics:

Section	Weight	Objectives
Controlling User Access	5%	- Distinguish between granting privileges and roles - Differentiate system privileges from object privileges - Grant privileges on tables and on a view
Creating Other Schema Objects	10%	- Create, maintain, and use sequences - Create synonyms for database objects - Create and maintain indexes - Create, modify, and retrieve data from a view
Displaying Data from Multiple Tables Using Joins	15%	- Cross join tables - 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 - Join a table to itself by using a self-join
Using Subqueries to Solve Queries	15%	- Write single-row and multi-row subqueries - Describe the types of problems that subqueries can solve - List the types of subqueries - Define subqueries
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 Conversion Functions and Conditional Expressions	10%	- Describe implicit and explicit data type conversion - 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
Using DDL Statements to Create and Manage Tables	14%	- Alter table definitions - Create a simple table - Drop, rename, and truncate tables - Review the table structure - Describe the data types that are available for columns - Categorize the main database objects
Using Set Operators	5%	- Use a set operator to combine multiple queries into a single query - Describe set operators - Describe the order of precedence when the set operators are used
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 Single-Row Functions to Customize Output	10%	- Manipulate numbers with the ROUND, TRUNC, and MOD functions - 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
Manipulating Data	14%	- Delete rows from a table - Update rows in a table - Control transactions - Describe each data manipulation language (DML) statement - Insert rows into a table
Reporting Aggregated Data Using Group Functions	15%	- Identify the available group functions - Group data by using the GROUP BY clause - Describe the use of group functions - Include or exclude grouped rows by using the HAVING clause
Working with Oracle Database SQL	8%	- Create a container database - Start up and shut down a database - Describe the Oracle Database architecture - Explain the installation of Oracle Database software

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Oracle 1z0-071 Schulungsunterlagen, 1z0-071 Prüfungsaufgaben

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Oracle Database SQL 1z0-071 Prüfungsfragen mit Lösungen (Q124-Q129):

124. Frage
Examine the structure of the PROMOTIONS table: (Choose the best answer.)

Management requires a report of unique promotion costs in each promotion category.
Which query would satisfy this requirement?

A. SELECT DISTINCT promo_cost, promo_category FROM promotions
B. SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1
C. SELECT promo_category, DISTINCT promo_cost FROM promotions
D. SELECT DISTINCT promo_cost, DISTINCT promo_category FROM promotions;

Antwort: B

125. Frage
View the Exhibit and examine the description of the EMPLOYEEStable.

You want to calculate the total renumeration for each employee. Total renumeration is the sum of the annual salary and the percentage commission earned for a year. Only a few employees earn commission.
Which SQL statement would you execute to get the desired output?
SELECT first_name, salary, salary*12+(salary*NVL2 (commission_pct,

A. FROM EMPLOYEES;
B. FROM EMPLOYEES;
SELECT first_name, salary (salary + NVL (commission_pct, 0)*salary)*12
C. salary,salary+commission_pct))"Total"
FROM EMPLOYEES;
SELECT first_name, salary, salary*12+salary*commission_pct "Total"
D. "Total"
FROM EMPLOYEES;
SELECT first_name, salary*12 + NVL(salary,0)*commission_pct, "Total"

Antwort: C

126. Frage
View the Exhibit and examine the structure in the EMPLOYEES tables.

Evaluate the following SQL statement:
SELECT employee_id, department_id
FROM employees
WHERE department_id= 50 ORDER BY department_id
UNION
SELECT employee_id, department_id
FROM employees
WHERE department_id=90
UNION
SELECT employee_id, department_id
FROM employees
WHERE department_id=10;
What would be the outcome of the above SQL statement?

A. The statement would not execute because the positional notation instead of the column name should be used with the ORDER BY clause.
B. The statement would execute successfully and display all the rows in the ascending order of DEPARTMENT_ID.
C. The statement would execute successfully but it will ignore the ORDER BY clause and display the rows in random order.
D. The statement would not execute because the ORDER BY clause should appear only at the end of the SQL statement, that is, in the last SELECT statement.

Antwort: D

127. Frage
Which two statements are true regarding non equijoins?

A. The SQL:1999 compliant ANSI join syntax must be used.
B. The USING clause can be used.
C. The ON clause can be used.
D. The Oracle join syntax can be used.
E. Table aliases must be used.

Antwort: C,D

Begründung:
Non-equi joins are joins where the join condition is based on something other than equality. In Oracle SQL, you can perform non-equi joins using various clauses:
* A. The ON clause can be used: True, the ON clause can specify any condition for the join, including non-equijoins. It is not limited to equijoins.
* E. The Oracle join syntax can be used: The traditional Oracle join syntax, which uses the WHERE clause to specify the join condition, can be used for all types of joins, including non-equijoins.
References:
* Oracle Database SQL Language Reference 12c, especially the sections on join clauses including the ON clause and Oracle's proprietary join syntax.

128. Frage
View the exhibit for the structure of the STUDENTand FACULTYtables.

You need to display the faculty name followed by the number of students handled by the faculty at the base location.
Examine the following two SQL statements:
Statement 1
SQL>SELECT faculty_name, COUNT(student_id)
FROM student JOIN faculty
USING (faculty_id, location_id)
GROUP BY faculty_name;
Statement 2
SQL>SELECT faculty_name, COUNT(student_id)
FROM student NATURAL JOIN faculty
GROUP BY faculty_name;
Which statement is true regarding the outcome?

A. Only statement 2 executes successfully and gives the required result.
B. Both statements 1 and 2 execute successfully and give the same required result.
C. Only statement 1 executes successfully and gives the required result.
D. Both statements 1 and 2 execute successfully and give different results.

Antwort: C

129. Frage
......

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