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Oracle 1z0-071 Exam Syllabus Topics:

Section	Weight	Objectives
Aggregating Data Using Group Functions	10%	- Handling NULLs in group functions - SUM, AVG, COUNT, MAX, MIN functions - GROUP BY and HAVING clauses
Managing Views		- Updatable and read-only views - Create, modify and drop views
Managing Tables and Constraints		- Constraints: primary key, foreign key, unique, check, not null - Temporary and external tables - Data types, creating/altering/dropping tables
Restricting and Sorting Data	15%	- Operator precedence - Substitution variables, DEFINE and VERIFY commands - WHERE clause and filtering conditions - ORDER BY clause and sorting rules
Retrieving Data Using SQL SELECT Statement	20%	- Arithmetic operations and NULL handling - SELECT statement syntax and usage - Column aliases, concatenation, literals and DISTINCT
Displaying Data from Multiple Tables	15%	- Cartesian products - Equijoins and non-equijoins - Self-joins and outer joins
Working with Time Zones and Date/Time Data		- TIMESTAMP, INTERVAL data types - Time zone conversion functions
Relational Database Concepts	10%	- ERD and SQL statement mapping - Relationship between database and SQL - Theoretical and physical aspects of relational databases
Managing Indexes, Synonyms and Sequences		- Create and use synonyms - Create and maintain indexes - Create and use sequences
Using SET Operators		- Ordering results with set operations - UNION, UNION ALL, INTERSECT, MINUS operators
Using Subqueries to Solve Queries		- Single-row and multi-row subqueries - Correlated subqueries for update/delete
Manipulating Data and Managing Transactions		- INSERT, UPDATE, DELETE, MERGE statements - Multi-table inserts - Transaction control: COMMIT, ROLLBACK, SAVEPOINT
Conversion Functions and Conditional Expressions	10%	- Implicit and explicit data type conversion - TO_CHAR, TO_NUMBER, TO_DATE functions - NVL, NULLIF, COALESCE and CASE expressions
Controlling User Access		- System and object privileges - Roles, granting and revoking privileges
Using Data Dictionary Views		- Retrieve metadata and object information
Using Single-Row Functions to Customize Output	20%	- Nested functions usage - Character, number, and date functions

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Oracle Database SQL Sample Questions (Q188-Q193):

NEW QUESTION # 188
You create a table named 123.
Which statement runs successfully?

A. SELECT * FROM \'123\';
B. SELECT * FROM '123';
C. SELECT * FROM "123";
D. SELECT * FROM TABLE(123);

Answer: B

NEW QUESTION # 189
Examine the structure of the SHIPMENTS table:

You want to generate a report that displays the PO_IDand the penalty amount to be paid if the SHIPMENT_DATEis later than one month from the PO_DATE. The penalty is $20 per day.
Evaluate the following two queries:

Which statement is true regarding the above commands?

A. Only the first query executes successfully but gives a wrong result.
B. Only the first query executes successfully and gives the correct result.
C. Only the second query executes successfully and gives the correct result.
D. Both execute successfully and give correct results.
E. Only the second query executes successfully but gives a wrong result.

Answer: B

NEW QUESTION # 190
Examine the data in the CUST_NAMEcolumn of the CUSTOMERStable.

You want to extract only those customer names that have three names and display the * symbol in place of the first name as follows:

Which two queries give the required output? (Choose two.)

A. SELECT LPAD(SUBSTR(cust_name, INSTR (cust_name ' ')),LENGTH(cust_name) - INSTR(cust_name, '
'), '*') "CUST NAME"
FROM customers
WHERE INSTR(cust_name, ' ',1,2)<>0;
B. SELECT LPAD(SUBSTR(cust_name, INSTR (cust_name ' ')),LENGTH(cust_name) - INSTR(cust_name, '
'), '*') "CUST NAME"
FROM customers
WHERE INSTR(cust_name, ' ',1,-2)<>0;
C. SELECT LPAD(SUBSTR(cust_name, INSTR(cust_name, ' ')),LENGTH(cust_name),'*') "CUST NAME" FROM customers WHERE INSTR(cust_name, ' ',-1,2)<>0;
D. SELECT LPAD(SUBSTR(cust_name, INSTR(cust_name, ' ')),LENGTH(cust_name),'*') "CUST NAME" FROM customers WHERE INSTR(cust_name, ' ',1,2)<>0;

Answer: C,D

NEW QUESTION # 191
Examine the description of the EMPLOYEES table:

Which two queries return the highest salary in the table?

A. SELECT MAX (MAX (salary))
FROM employees
GROUP BY department_id;
B. SELECT MAX (salary)
FROM employees
GROUP BY department_id;
C. SELECT MAX (salary)
FROM employees
GROUP BY department_id
HAVING MAX (salary) = MAX (MAX (salary));
D. SELECT department_id, MAX(salary)
FROM employees
GROUP BY department_id;
E. SELECT MAX (salary)
FROM employees;

Answer: A,E

NEW QUESTION # 192
Examine this partial command:

Which two clauses are required for this command to execute successfully?

A. the ACCESS PARAMETERS clause
B. the access driver TYPE clause
C. the DEFAULT DIRECTORY clause
D. the LOCATION clause
E. the REJECT LIMIT clause

Answer: B,D

NEW QUESTION # 193
......

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