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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
Using DDL Statements to Create and Manage Tables	14%	- Categorize the main database objects - Create a simple table - Review the table structure - Drop, rename, and truncate tables - Alter table definitions - Describe the data types that are available for columns
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 - Describe the differences between single-row and multiple-row functions - Perform arithmetic with date data - Manipulate dates with the date functions
Reporting Aggregated Data Using Group Functions	15%	- Group data by using the GROUP BY clause - Identify the available group functions - Describe the use of group functions - Include or exclude grouped rows by using the HAVING clause
Restricting and Sorting Data	6%	- Use DEFINE and UNDEFINE commands - 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
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
Manipulating Data	14%	- Insert rows into a table - Update rows in a table - Describe each data manipulation language (DML) statement - Delete rows from a table - Control transactions
Working with Oracle Database SQL	8%	- Start up and shut down a database - Describe the Oracle Database architecture - Create a container database - Explain the installation of Oracle Database software
Creating Other Schema Objects	10%	- Create synonyms for database objects - Create and maintain indexes - Create, modify, and retrieve data from a view - Create, maintain, and use sequences
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
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
Using Conversion Functions and Conditional Expressions	10%	- Describe implicit and explicit data type conversion - Apply the NVL, NULLIF, and COALESCE functions to data - Use conditional IF THEN ELSE logic in a SELECT statement - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
Using Subqueries to Solve Queries	15%	- Describe the types of problems that subqueries can solve - Write single-row and multi-row subqueries - List the types of subqueries - Define subqueries

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Oracle Database SQL Sample Questions (Q154-Q159):

NEW QUESTION # 154
Which two statements are true about outer Joins?

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

Answer: B,C

Explanation:
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.

NEW QUESTION # 155
You create a table by using this command:
CREATE TABLE rate_list (rate NUMBER(6,2));
Which two are true about executing statements?

A. INSERT INTO rate_list VALUES (-99.99) inserts the value as 99.99.
B. INSERT INTO rate_list VALUES (-10) produces an error.
C. INSERT INTO rate_list VALUES (-.9) inserts the value as -.9.
D. INSERT INTO rate_list VALUES (0.999) produces an error.
E. INSERT INTO rate_list VALUES (87654.556) inserts the value as 87654.6.
F. INSERT INTO rate_list VALUES (0.551) inserts the value as .55.

Answer: A,F

NEW QUESTION # 156
Which two statements are true regarding constraints? (Choose two.)

A. The foreign key and parent table primary key must have the same name.
B. A table can have only one primary key and one foreign key.
C. Both primary key and foreign key constraints can be defined at both column and table levels.
D. Only the primary key can be defined at the column and table levels.
E. A table can have only one primary key but multiple foreign keys.

Answer: C,E

NEW QUESTION # 157
A non-correlated subquery can be defined as __________. (Choose the best answer.)

A. A set of sequential queries, all of which must return values from the same table.
B. A SELECT statement that can be embedded in a clause of another SELECT statement only.
C. A set of one or more sequential queries in which generally the result of the inner query is used as the search value in the outer query.
D. A set of sequential queries, all of which must always return a single value.

Answer: C

NEW QUESTION # 158
View the exhibit and examine the structure of the SALES, CUSTOMERS, PRODUCTS and TIMES tables.

The PROD_ID column is the foreign key in the SALES table, which references the PRODUCTS table.
Similarly, the CUST_ID and TIME_ID columns are also foreign keys in the SALES table referencing the CUSTOMERS and TIMES tables, respectively.
Evaluate the following CREATE TABLE command:
CREATE TABLE new_sales (prod_id, cust_id, order_date DEFAULT SYSDATE)
AS
SELECT prod_id, cust_id, time_id
FROM sales;
Which statement is true regarding the above command?

A. The NEW_SALES table would get created and all the FOREIGN KEY constraints defined on the specified columns would be passed to the new table.
B. The NEW_SALES table would not get created because the DEFAULT value cannot be specified in the column definition.
C. The NEW_SALES table would get created and all the NOT NULL constraints defined on the specified columns would be passed to the new table.
D. The NEW_SALES table would not get created because the column names in the CREATE TABLE command and the SELECT clause do not match.

Answer: C

NEW QUESTION # 159
......

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