1Z Oracle Database 11g - SQL Fundamentals I Exam Summary Syllabus Questions

Transcription

1 1Z0-051 Oracle Database 11g - SQL Fundamentals I Exam Summary Syllabus Questions

2 Table of Contents Introduction to 1Z0-051 Exam on Oracle Database 11g - SQL Fundamentals I 2 Oracle 1Z0-051 Certification Details:... 2 Oracle 1Z0-051 Exam Syllabus: Z0-051 Sample Questions:... 4 Answers to 1Z0-051 Exam Questions:... 8 pg. 1

3 Introduction to 1Z0-051 Exam on Oracle Database 11g - SQL Fundamentals I You can use this document to collect all the information about Oracle Database 11g - SQL Fundamentals I (1Z0-051) certification. The Oracle 1Z0-051 certification is mainly targeted to those candidates who are from Database background and want to flourish their career with Oracle Database 11g Administrator Certified Associate (OCA) credential. The Oracle Database 11g - SQL Fundamentals I certification exam validates your understanding of the Oracle Database technology and sets the stage for your future progression. Oracle 1Z0-051 Certification Details: Exam Name Exam Code 1Z0-051 Oracle Database 11g: SQL Fundamentals I Exam Product Version Exam Price Duration Oracle Database 11g USD $125 (Pricing may vary by country or by localized currency) 120 Mins Number of Questions 64 Passing Score 60% Validated Against Format This exam has been validated against Oracle Database 11g Release 2 version Multiple Choice Recommended Training Oracle Database: Introduction to SQL Schedule Exam Pearson VUE - Oracle Recommended Practice 1Z0-051 Online Practice Exam pg. 2

4 Oracle 1Z0-051 Exam Syllabus: Retrieving Data using the SQL SELECT Statement Restricting and Sorting Data - Explain the capabilities of SQL SELECT statements - Execute a basic SELECT statement - Limit the rows that are retrieved by a query - Sort the rows that are retrieved by a query - Use ampersand substitution to restrict and sort output at runtime Using Single-Row Functions to Customize Output Using Conversion Functions and Conditional Expressions - Describe various types of functions available in SQL - Use character, number, and date functions in SELECT statements - Describe various types of conversion functions that are available in SQL - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Apply conditional expressions in a SELECT statement Reporting Aggregated Data Using the Group Functions - Identify the available group functions - Describe the use of group functions - Group data by using the GROUP BY clause - Include or exclude grouped rows by using the HAVING clause Displaying Data From Multiple Tables - Write SELECT statements to access data from more than one table using equijoins and nonequijoins - Join a table to itself by using a self-join - View data that generally does not meet a join condition by using OUTER joins - Generate a Cartesian product of all rows from two or more tables Using Subqueries to Solve Queries Using the SET Operators - Define subqueries - Describe the types of problems that the subqueries can solve - List the types of subqueries - Write single-row and multiple-row subqueries - Describe set operators - Use a set operator to combine multiple queries into a single query - Control the order of rows returned pg. 3

5 - Describe each data manipulation language (DML) statement - Insert rows into a table Manipulating Data - Update rows in a table - Delete rows from a table - Control transactions Using DDL Statements to Create and Manage Tables Creating Other Schema Objects - Categorize the main database objects - Review the table structure - List the data types that are available for columns - Create a simple table - Explain how constraints are created at the time of table creation - Describe how schema objects work - Create simple and complex views - Retrieve data from views - Create, maintain, and use sequences - Create and maintain indexes - Create private and public synonyms 1Z0-051 Sample Questions: 01) Examine the structures of the PATIENT, PHYSICIAN, and ADMISSION tables. Which SQL statement will produce a list of all patients who have more than one physician? pg. 4

6 a) SELECT p.patient_id FROM patient p WHERE p.patient_id IN (SELECT patient_id FROM admission GROUP BY patient_id HAVING COUNT(*) > 1); b) SELECT DISTINCT a.patient_id FROM admission a, admission a2 WHERE a.patient_id = a2.patient_id AND a.physician_id <> a2.physician_id; c) SELECT patient_id FROM admission WHERE COUNT(physician_id) > 1; d) SELECT patient_id FROM patient FULL OUTER JOIN physician; 02) The transaction table contains these columns: SQL> DESCRIBE transaction TRANSACTION_ID NUMBER(9) TRANS_CODE VARCHAR2(5) CUST_ACCOUNT VARCHAR2(12) A new standard was adopted in your department affecting reports produced by querying the transaction table. When creating reports, a dash (-) followed by the three characters 'ANI' must be appended to all transaction codes that contain only three characters. Any leading 'W' in a transaction code must be removed from the resulting data display. Which query will return the desired results? a) SELECT TRIM('W' (RPAD(trans_code, 7, '-ANI')))FROM transaction WHERE LENGTH(trans_code) = 3; b) SELECT TRIM('W' FROM (RPAD(trans_code, 3, '-ANI')))FROM transaction WHERE LENGTH(trans_code) = 3; c) SELECT TRIM(LEADING 'W' FROM (RPAD(trans_code, 7, '-ANI')))FROM transaction WHERE LENGTH(trans_code) = 3; d) SELECT TRIM(LEADING 'W' FROM (RPAD(trans_code, 3, '-ANI')))FROM transaction WHERE LENGTH(trans_code) = 3; 03) The current date is January 1, You need to store this date value: 19-OCT-99 Which statement about the date format for this value is TRUE? a) Both the YY and RR date formats will interpret the year as b) Both the YY and RR date formats will interpret the year as c) The RR date format will interpret the year as 2099, and the YY date format will interpret the year as d) The RR date format will interpret the year as 1999, and the YY date format will interpret the year as ) Which two statements would cause an implicit COMMIT to occur? (Choose two.) a) GRANT b) SELECT pg. 5

7 c) RENAME d) COMMIT e) UPDATE f) ROLLBACK 05) The EMPLOYEE table contains these columns: EMP_ID NUMBER(9) FNAME VARCHAR2(25) LNAME VARCHAR(30) SALARY NUMBER(7,2) BONUS NUMBER(5,2) DEPT_ID NUMBER(9) You need to calculate the average bonus for all the employees in each department. The average should be calculated based on all the rows in the table, even if some employees do not receive a bonus. Which group function should you use to calculate this value? a) AVG b) SUM c) MAX d) MEAN e) COUNT f) AVERAGE 06) Which statement concerning SQL functions is TRUE? a) All date functions return DATE datatype values. b) Character functions can return character or number values. c) Single-row functions can only be used in SELECT and WHERE clauses. d) Conversion functions convert a column definition from one datatype to another datatype. 07) Examine the data from the DONATION table. This statement fails when executed: SELECT amount_pledged, amount_paid FROM donation WHERE donor_id = (SELECT donor_id FROM donation WHERE amount_pledged = OR pledge_dt = '05-JAN-2002'); pg. 6

8 Which two changes could correct the problem? (Choose two. Each correct answer is a separate solution.) a) Remove the subquery WHERE clause. b) Change the outer query WHERE clause to WHERE donor_id IN. c) Change the outer query WHERE clause to WHERE donor_id LIKE. d) Include the DONOR_ID column in the select list of the outer query. e) Remove the single quotes around the date value in the inner query WHERE clause. f) Change the subquery WHERE clause to WHERE amount_pledged = AND pledge_dt = '05-JAN-2002'. 08) Which statements concerning the creation of a view are TRUE? (Choose all that apply.) a) View columns that are the result of derived values must be given a column alias. b) A constraint name must be provided when using the WITH CHECK OPTION clause or the statement will fail. c) A view may have column names that are different from the actual base table(s) column names by using column aliases. d) When the view already exists, using the OR REPLACE option requires regranting the object privileges previously granted on the view. 09) You want to query employee information and display the results sorted by the employee's department, then by their salaries from highest to lowest. When multiple employees within the same department share a last name, they must be displayed in alphabetical order by first name. Which ORDER BY clause should you use in your query? a) ORDER BY department_id, salary, last_name, first_name b) ORDER BY department_id, salary ASC, last_name, first_name c) ORDER BY department_id, salary DESC, last_name, first_name d) ORDER BY department_id, salary DESC, first_name ' ' last_name ASC 10) Examine the data in the LINE_ITEM table. You query the database and return the value 23. Which SELECT statement did you use? a) SELECT SUBSTR(product_id, 3) FROM line_item WHERE line_item_id = 2 AND order_id = 1494; b) SELECT SUBSTR(product_id, 3, -2) pg. 7

9 FROM line_item WHERE line_item_id = 2 AND order_id = 1494; c) SELECT SUBSTR(product_id, -3, 2) FROM line_item WHERE line_item_id = 2 AND order_id = 1494; d) SELECT SUBSTR(product_id, 3, 2) FROM line_item WHERE line_item_id = 2 AND order_id = 1494; Answers to 1Z0-051 Exam Questions: QUESTION: 01 QUESTION: 02 QUESTION: 03 QUESTION: 04 QUESTION: 05 Answer: b Answer: c Answer: d Answer: a, c Answer: a QUESTION: 06 QUESTION: 07 QUESTION: 08 QUESTION: 09 QUESTION: 10 Answer: b Answer: b, f Answer: a, c Answer: c Answer: d Note: If you find any typo or data entry error in these sample questions, we request you to update us by commenting on this page or write an on feedback@oraclestudy.com pg. 8