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Oracle 1z1-071 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Using Conversion Functions and Conditional Expressions	10%	- 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 - Apply the NVL, NULLIF, and COALESCE functions to data
Topic 2: Reporting Aggregated Data Using Group Functions	15%	- Include or exclude grouped rows by using the HAVING clause - Identify the available group functions - Group data by using the GROUP BY clause - Describe the use of group functions
Topic 3: Working with Oracle Database SQL	8%	- Create a container database - Describe the Oracle Database architecture - Start up and shut down a database - Explain the installation of Oracle Database software
Topic 4: Using Single-Row Functions to Customize Output	10%	- Describe the differences between single-row and multiple-row functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Perform arithmetic with date data - Manipulate strings with character function in the SELECT and WHERE clauses - Manipulate dates with the date functions
Topic 5: 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 6: Using DDL Statements to Create and Manage Tables	14%	- Describe the data types that are available for columns - Categorize the main database objects - Alter table definitions - Drop, rename, and truncate tables - Create a simple table - Review the table structure
Topic 7: 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 8: 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
Topic 9: Manipulating Data	14%	- Insert rows into a table - Describe each data manipulation language (DML) statement - Control transactions - Update rows in a table - Delete rows from a table
Topic 10: Displaying Data from Multiple Tables Using Joins	15%	- View data that does not meet a join condition by using outer joins - 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
Topic 11: Restricting and Sorting Data	6%	- Sort the rows that are retrieved by a query - Limit the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands - Use ampersand substitution to restrict and sort output at runtime
Topic 12: 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 13: Using Subqueries to Solve Queries	15%	- Describe the types of problems that subqueries can solve - List the types of subqueries - Define subqueries - Write single-row and multi-row subqueries

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Oracle Database SQL Sample Questions (Q354-Q359):

NEW QUESTION # 354
Which two are true about dropping columns from a table? (Choose two.)

A. A column must be set as unused before it is dropped from a table.
B. Multiple columns can be dropped simultaneously using the ALTER TABLEcommand.
C. A column that is referenced by another column in any other table cannot be dropped.
D. A column drop is implicitly committed.
E. A column can be removed only if it contains no data.
F. A primary key column cannot be dropped.

Answer: B,F

NEW QUESTION # 355
Examine the structure of the MEMBERS table:

You want to display details of all members who reside in states starting with the letter A followed by exactly one character.
Which SQL statement must you execute?

A. SELECT * FROM MEMBERS WHERE state LIKE 'A%';
B. SELECT * FROM MEMBERS WHERE state LIKE '%A_';
C. SELECT * FROM MEMBERS WHERE state LIKE 'A_';
D. SELECT * FROM MEMBERS WHERE state LIKE 'A_%';

Answer: C

NEW QUESTION # 356
Examine the description of the EMPLOYEEStable:

Examine this query:

Which line produces an error?

A. Line 5
B. Line 8
C. Line 7
D. Line 3

Answer: D

NEW QUESTION # 357
In the PROMOTIONS table, the PROMO_BEGIN_DATEcolumn is of data type DATEand the default date format is DD-MON-RR.
Which two statements are true about expressions using PROMO_BEGIN_DATEcontained a query? (Choose two.)

A. PROMO_BEGIN_DATE - SYSDATEwill return an error.
B. PROMO_BEGIN_DATE - SYSDATEwill return a number.
C. PROMO_BEGIN_DATE- 5 will return a date.
D. TO_NUMBER(PROMO_BEGIN_DATE)- 5 will return a number.
E. TO_DATE(PROMO_BEGIN_DATE * 5)will return a date.

Answer: B,C

NEW QUESTION # 358
Evaluate the following SQL statement:
SQL> SELECT cust_id, cust_last_name "Last Name"
FROM customers
WHERE country_id = 10
UNION
SELECT cust_id CUST_NO, cust_last_name
FROM customers
WHERE country_id = 30;
Which ORDER BY clause are valid for the above query? (Choose all that apply.)

A. ORDER BY "Last Name"
B. ORDER BY 2, cust_id
C. ORDER BY 2,1
D. ORDER BY "CUST_NO"
E. ORDER BY CUST_NO

Answer: A,B,C

Explanation:
Using the ORDER BY Clause in Set Operations
- The ORDER BY clause can appear only once at the end of the compound query.
- Component queries cannot have individual ORDER BY clauses.
- The ORDER BY clause recognizes only the columns of the first SELECT query.
- By default, the first column of the first SELECT query is used to sort the output in an ascending order.

NEW QUESTION # 359
......

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