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Oracle 1z0-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q300-Q305):

NEW QUESTION # 300
Examine the structure of the BOOKS_TRANSACTIONStable.

You want to update this table such that BOOK_IDis set to 'INVALID'for all rows where no MEMBER_ID has been entered.
Examine this partial SQL statement:

Which condition must be used in the WHEREclause to perform the required update?
MEMBER_ID = '';

A. MEMBER_ID = NULL;
B. MEMBER_ID IS NULL;
C. MEMBER_ID = "";
D.

Answer: B

NEW QUESTION # 301
You are designing the structure of a table in which two columns have the specifications:
COMPONENT_ID - must be able to contain a maximum of 12 alphanumeric characters and must uniquely identify the row
EXECUTION_DATETIME - contains Century, Year, Month, Day, Hour, Minute, Second to the maximum precision and is used for calculations and comparisons between components.
Which two options define the data types that satisfy these requirements most efficiently? (Choose two.)

A. The COMPONENT_ID must be of ROWID data type.
B. The COMPONENT_ID must be of VARCHAR2 data type.
C. The EXECUTION_DATETIME must be of TIMESTAMP data type.
D. The EXECUTION_DATETIME must be of INTERVAL DAY TO SECOND data type.
E. The EXECUTION_DATETIME must be of DATE data type.
F. The COMPONENT_ID column must be of CHAR data type.

Answer: E,F

NEW QUESTION # 302
Which two statements are true about conditional INSERT ALL? (Choose two.)

A. The total number of rows inserted is always equal to the number of rows returned by the subquery.
B. It cannot have an ELSEclause.
C. Each WHENcondition is tested for each row returned by the subquery.
D. Each row returned by the subquery can be inserted into only a single target table.
E. A single WHEN condition can be used for multiple INTOclauses.

Answer: C,E

NEW QUESTION # 303
Which three statements are true about indexes and their administration in an Oracle database?

A. If a query filters on an indexed column then it will always be used during execution of the query
B. A descending index is a type of function-based index
C. An index can be created as part of a CREATE TABLE statement.
D. A DROP INDEX statement always prevents updates to the table during the drop operation
E. An INVISIBLE index is not maintained when Data Manipulation Language (DML) is performed on its underlying table.
F. A UNIQUE and non-unique index can be created on the same table column

Answer: B,C,D

NEW QUESTION # 304
Examine the following query:
SQL> SELECT prod_id, amount_sold
FROM sales
ORDER BY amount_sold
FETCH FIRST 5 PERCENT ROWS ONLY;
What is the output of this query?

A. It displays 5 percent of the products with the highest amount sold.
B. It displays 5 percent of the products with the lowest amount sold.
C. It results in an error because the ORDER BY clause should be the last clause.
D. It displays the first 5 percent of the rows from the SALES table.

Answer: B

Explanation:
References:
https://oracle-base.com/articles/12c/row-limiting-clause-for-top-n-queries-12cr1

NEW QUESTION # 305
......

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