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Oracle 1z0-071 Exam Syllabus Topics:

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

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Oracle Database SQL 1z0-071 Prüfungsfragen mit Lösungen (Q252-Q257):

252. Frage
Which two are true about the NVL, NVL2, and COALESCE functions?

A. COALESCE stops evaluating the list of expressions when it finds the first non-null value.
B. NVL2 can have any number of expressions in the list.
C. NVL can have any number of expressions in the list.
D. COALESCE stops evaluating the list of expressions when it finds the first null value.
E. NVL must have expressions of the same data type.
F. The first expression in NVL2 is never returned.

Antwort: A,F

253. Frage
Which task can be performed by using a single Data Manipulation Language (DML) statement?

A. Removing all data from a single column on which a unique constraint is defined.
B. Adding a column constraint while inserting a row into a table.
C. Removing all data only from a single column on which a primary key constraint is defined.
D. Adding a column with a default value while inserting a row into a table.

Antwort: C

254. Frage
Which three are true about system and object privileges? (Choose three.)

A. Adding a primary key constraint to an existing table in another schema requires a system privilege
B. Revoking a system privilege that was granted with WITH ADMIN OPTION has a cascading effect
C. WITH GRANT OPTION cannot be used when granting an object privilege to PUBLIC
D. WITH GRANT OPTION can be used when granting an object privilege to both users and roles
E. Revoking an object privilege that was granted with the WITH GRANT OPTION clause has a cascading effect.
F. Adding a foreign key constraint pointing to a table in another schema requires the REFERENCES object privilege

Antwort: D,E,F

Begründung:
https://docs.oracle.com/cd/B28359_01/network.111/b28531/authorization.htm#DBSEG004

255. Frage
Examine the description of the EMPLOYEES table:

NLS_DATE FORMAT is DD-MON-RR.
Which two queries will execute successfully?

A. SELECT dept_ id, AVG (MAX(salary)) FROM employees GROUP By dept_id HAVING hire_date> ' O1-JAN-19';
B. SELECT dept id, MAX (SUM(salary)) FROM employees GROUP BY dept_id;
C. SELECT dept_ iD, sum(salary) FROM employees WHERE hire_date > '01-JAN-9' GROUP BY dept_id;
D. SELECT dept_ id, AVG(MAX(salary)) FROM employees GROUP BY dept_id, salary;
E. SELECT AVG(MAX(salary)) FROM employees GROUP BY salary;

Antwort: C,E

256. Frage
View the exhibit and examine the description for the SALESand CHANNELStables.

You issued this SQL statement:

Which statement is true regarding the result?

A. The statement will fail because a subquery cannot be used in a VALUESclause.
B. The statement will fail because the subquery in the VALUESclause is not enclosed within single quotation marks.
C. The statement will fail because the VALUESclause is not required with a subquery.
D. The statement will execute and a new row will be inserted in the SALEStable.

Antwort: D

257. Frage
......

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