1z0-071 Exam Dumps | Which three statements are true about defining relations between tables in a relational database?

Home
Oracle
Oracle Database SQL
Oracle.1z0-071.v2024-08-31.q139
Question 134

Valid 1z0-071 Dumps shared by ExamDiscuss.com for Helping Passing 1z0-071 Exam! ExamDiscuss.com now offer the newest 1z0-071 exam dumps, the ExamDiscuss.com 1z0-071 exam questions have been updated and answers have been corrected get the newest ExamDiscuss.com 1z0-071 dumps with Test Engine here:

Access 1z0-071 Dumps Premium Version
(325 Q&As Dumps, 35%OFF Special Discount Code: freecram)

<< Prev Question Next Question >>

Question 134/139

Which three statements are true about defining relations between tables in a relational database?

A. Foreign key columns allow null values.

B. Unique key columns allow null values

C. Primary key columns allow null values.

D. Every primary or unique key value must refer to a matching foreign key value.

E. Every foreign key value must refer to a matching primary or unique key value.

Correct Answer: A,E

A). Correct. Foreign key constraints can be nullable. This allows the possibility of a row not having a link to another table. B. Incorrect. Unique key constraints do not allow multiple rows to have null values unless the constraint is defined on multiple columns. C. Incorrect. Primary key columns must be NOT NULL and unique across the table. D. Incorrect. Primary or unique key values do not refer to foreign keys; it's the foreign keys that refer to primary or unique keys. E. Correct. Foreign key constraints enforce referential integrity by requiring that each foreign key value matches a primary or unique key value in the related table.
These are standard rules in relational databases, which can be confirmed in the Oracle Database Concepts Guide.

Your email address will not be published. Required fields are marked *

Comment: *

Name: *

Email: *

Rating: *

Verification: *

Question List (139q): Question 1: Examine the description of the PRODUCT_ STATUS table: (Exhib...; Question 2: Evaluate the following SQL statement SQL>SELECT promo_id,...; Question 3: Which two statements are true about Oracle synonyms?...; Question 4: SELECT * FROM bricks,colors; Which two statements are true?...; Question 5: Which three statements are true about indexes and their admi...; Question 6: The PROD_ID column is the foreign key in the SALES table.Whi...; Question 7: Which three statements are true about Structured Query Langu...; Question 8: The STORES table has a column START_ DATE of data type DATE,...; Question 9: Examine the description of the CUSTOMERS table: (Exhibit) Wh...; Question 10: Examine the description of the countries table: (Exhibit) Ex...; Question 11: Which is the default column or columns for sorting output fr...; Question 12: Which statement fails to execute successfully?...; Question 13: Which two are true about rollbacks?...; Question 14: Examine this SQL statement: SELECT cust_id, cus_last_name "L...; Question 15: You execute this query: SELECT TO CHAR (NEXT_DAY(LAST_DAY(SY...; Question 16: Which two tasks require subqueries?...; Question 17: Examine the data in the CUST_NAME column of the CUSTOMERS ta...; Question 18: Examine the description products table: (Exhibit) Examine th...; Question 19: Examine this Statement which returns the name of each employ...; Question 20: Which three statements are true about dropping and unused co...; Question 21: Which three statements are true about single row functions?...; Question 22: Which two statements are true about outer Joins?...; Question 23: which three statements are true about indexes and their admi...; Question 24: Examine the data in the EMPLOYEES table: (Exhibit) Which sta...; Question 25: Which two statements about INVISIBLE indexes are true?...; Question 26: Examine the description of the CUSTONERS table (Exhibit) CUS...; Question 27: Which two are SQL features?; Question 28: Which two actions can you perform with object privileges?...; Question 29: Which three statements are true about a self join?...; Question 30: Which three statements are true about the DESCRIBE command?...; Question 31: Which two are true about multiple table INSERT statements?...; Question 32: Which three queries execute successfully?...; Question 33: Which two statements are true about the ORDER BY clause?...; Question 34: Which three are true about granting object privileges on tab...; Question 35: Which two statements are true?; Question 36: Which three statements are true about single-row functions?...; Question 37: The SALES table has columns PROD_ID and QUANTITY_SOLD of dat...; Question 38: Which two join conditions in a from clause are non-equijoins...; Question 39: Which three actions can you perform by using the ORACLE DATA...; Question 40: Which two true about a sql statement using SET operations su...; Question 41: Examine this statement: (Exhibit) Which two things must be c...; Question 42: Which three are true about dropping columns from a table?...; Question 43: Examine the description of the ENPLOYES table: (Exhibit) Whi...; Question 44: Examine this query which executes successfully: SELECT job, ...; Question 45: Examine the description of the PROMTIONS table: (Exhibit) Yo...; Question 46: Examine the description of the EMPLOYEES table: (Exhibit) Wh...; Question 47: Which three are true about privileges?...; Question 48: Examine the description of the ORDER_ITEMS table: (Exhibit) ...; Question 49: Examine the description of the EMPLOYEES table: (Exhibit) Wh...; Question 50: Examine the data in the ORDERS table: (Exhibit) Examine the ...; Question 51: The EMPLOYEES table contains columns EMP_ID of data type NUM...; Question 52: Which three items does a direction of a relationship contain...; Question 53: Examine the data in the ENPLOYEES table: (Exhibit) Which sta...; Question 54: Examine the description of the EMPLOYEES table: (Exhibit) Ex...; Question 55: Which three statements are true regarding single row subquer...; Question 56: Examine this partial command: CREATE TABLE cust( cust_id NUM...; Question 57: Examine this partial command: (Exhibit) Which two clauses ar...; Question 58: .No user-defined locks are used in your database. Which thre...; Question 59: Which four statements are true regarding primary and foreign...; Question 60: Which three are true about subqueries?...; Question 61: Which two are true about unused columns?...; Question 62: Which two statements are true about the results of using the...; Question 63: Which two will execute successfully?...; Question 64: Examine this query: SELECT employee_id, first_name, salary F...; Question 65: You have the privileges to create any type of synonym. Which...; Question 66: You have been asked to create a table for a banking applicat...; Question 67: Which statement will execute successfully?...; Question 68: Which statement will return the last sequence number generat...; Question 69: Table ORDER_ITEMS contains columns ORDER_ID, UNIT_PRICE and ...; Question 70: Examine this statement: SELECT1 AS id,' John' AS first_name,...; Question 71: Examine the description of the EMPLOYEES table: (Exhibit) NL...; Question 72: Which two queries return the string Hello! we're ready?...; Question 73: What is true about non-equijoin statement performance?...; Question 74: Which three are true about multiple INSERT statements?...; Question 75: Which three statements are true about GLOBAL TEMPORARY TABLE...; Question 76: Which statements are true regarding primary and foreign key ...; Question 77: Which two statements are true about the DUAL table?...; Question 78: Which two statements execute successfully?...; Question 79: Which two are true about scalar subquery expressions?...; Question 80: Which two statements will do an implicit conversion?...; Question 81: Which three are key components of an Entity Relationship Mod...; Question 82: Examine this query: SELECT SUBSTR (SYSDATE,1,5) 'Result' FRO...; Question 83: Which two statements are true about the order by clause when...; Question 84: Which two are true about creating tables in an Oracle databa...; Question 85: You issued this command: DROP TABLE hr. employees; Which thr...; Question 86: Which two are true?; Question 87: Examine the description of the BOOKS table: (Exhibit) The ta...; Question 88: Examine the description of the SALES1 table: (Exhibit) SALES...; Question 89: Examine this statement: SELECT last name FROM employees ORDE...; Question 90: In the PROMOTIONS table, the PROMO_BEGTN_DATE column is of d...; Question 91: Which two statements are true about substitution variables?...; Question 92: Which two statements are true about CURRENT_TIMEITAMP?...; Question 93: Which two statements are true? (Choose two.)...; Question 94: Examine this data in the EMPLOYERS table (Exhibit) Which sta...; Question 95: You need to calculate the number of days from 1st January 20...; Question 96: Examine this list of requirements for a sequence: 1. Name:EM...; Question 97: Which two are true about virtual columns?...; Question 98: Which statement will return a comma-separated list of employ...; Question 99: Examine these two queries and their output: SELECT deptno, d...; Question 100: Examine this query which executes successfully; Select job,d...; Question 101: Which three statements are true regarding indexes?...; Question 102: Which two statements are true about date/time functions in a...; Question 103: Which two are true about using constraints?...; Question 104: Examine the description of the CUSTOMERS table: Which three ...; Question 105: Examine the description of the PROMOTIONS TABLE: You want to...; Question 106: Examine the data in the COLORS table: (Exhibit) Examine the ...; Question 107: Which two are true about the MERGE statement?...; Question 108: Examine these statements which execute successfully: ALTER S...; Question 109: Choose two Examine the description of the PRODUCT DETALS tab...; Question 110: Which two are true about the data dictionary?...; Question 111: Examine this query: SELECT TRUNC (ROUND(156.00,-2),-1) FROM ...; Question 112: Examine the description of the EMPLOYEES table (Exhibit) You...; Question 113: The SYSDATE function displays the current Oracle Server date...; Question 114: Examine the data in the EMPLOYEES table: (Exhibit) Which sta...; Question 115: Examine this description of the EMP table: (Exhibit) You exe...; Question 116: Which two are true about granting privilege on objects?...; Question 117: Which two are true about self joins?...; Question 118: Examine the description of the EMPLOYEES table: (Exhibit) Wh...; Question 119: Which two statements are true about an Oracle database?...; Question 120: Which two are true about creating tables in an Oracle databa...; Question 121: Examine this statement: CREATE TABTE orders (sarial_no NUMBE...; Question 122: Which two statements will return the names of the three empl...; Question 123: which three statements are true regarding single row subquer...; Question 124: Which statements is true about using functions in WHERE and ...; Question 125: Which three actions can you perform on an existing table con...; Question 126: Examine the description of the EMPLOYEES table: (Exhibit) Wh...; Question 127: (Exhibit) Which two queries only return CUBE?...; Question 128: Examine this statement,which executes successfully: In which...; Question 129: Which two statements are true about the COUNT function?...; Question 130: In your session, the NLS._DAE_FORMAT is DD- MM- YYYY.There a...; Question 131: Examine the description of the PRODUCTS table: (Exhibit) Whi...; Question 132: Which two statements are true about * TABLES views?...; Question 133: Examine the ORDER _ITEms table: (Exhibit) Which two queries ...; Question 134: Which three statements are true about defining relations bet...; Question 135: Which two are true about the USING clause when joining table...; Question 136: Which three statements are true about built-in data types?...; Question 137: Which two statements are true about the rules of precedence ...; Question 138: Examine this list of queries: Which two statements are true?...; Question 139: Which two statements are true regarding non equijoins?...

[×]

Download PDF File

Enter your email address to download Oracle.1z0-071.v2024-08-31.q139.pdf

Email:

Disclaimer:
Freecram doesn't offer Real GIAC Exam Questions. Freecram doesn't offer Real SAP Exam Questions. Freecram doesn't offer Real (ISC)² Exam Questions. Freecram doesn't offer Real CompTIA Exam Questions. Freecram doesn't offer Real Microsoft Exam Questions.
Oracle and Java are registered trademarks of Oracle and/or its affiliates.
Freecram material do not contain actual actual Oracle Exam Questions or material.
Microsoft®, Azure®, Windows®, Windows Vista®, and the Windows logo are registered trademarks of Microsoft Corporation.
Freecram Materials do not contain actual questions and answers from Cisco's Certification Exams. The brand Cisco is a registered trademark of CISCO, Inc.
CFA Institute does not endorse, promote or warrant the accuracy or quality of these questions. CFA® and Chartered Financial Analyst® are registered trademarks owned by CFA Institute.
Freecram does not offer exam dumps or questions from actual exams. We offer learning material and practice tests created by subject matter experts to assist and help learners prepare for those exams. All certification brands used on the website are owned by the respective brand owners. Freecram does not own or claim any ownership on any of the brands.

Question 134/139

LEAVE A REPLY

Download PDF File