SQL. Write true or false. INNER JOIN = CROSS JOIN WHERE is always TRUE.INNER JOIN combines two relations. It takes the second relation, and appends it tothe end of the first relation.In Corelated Subqueries, subquery is executed independent of the outer query:subquery is executed only once.SELECT * FROM sys.Relationsdisplays information about all the user-defined relations within a database.Given GENDER and STUDENT relations,SELECT Gender, FName, LNameFROM GENDERLEFT OUTER JOIN STUDENTON STUDENT.GenderCode = GENDER.GenderCodeSELECT Gender,FName, LNameFROM STUDENTRIGHT OUTER JOIN GENDERON STUDENT.GenderCode = GENDER.GenderCode|The statementsselect RIGHT('l wish I had attended the practice hours', 9) andselect REVERSE(LEFT(REVERSE('l wish I had attended the practice hours'),9))return/produce the same result.

I have provided a solution in step2.

Answered: |The statements select RIGHT('l wish I…

|The statements select RIGHT('l wish I had attended the practice hours', 9) and select REVERSE(LEFT(REVERSE('I wish I had attended the practice hours'),9)) return/produce the same result.

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter13: Views

Section: Chapter Questions

Problem 5MC

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Concept explainers

Single Table

In a database management system, a single table is designed to obtain data of heterogeneous items. A single-table design with DynamoDB resolves the issue of raising multiple requests for the relevant data of an entity.

Question

SQL. Write true or false.

INNER JOIN = CROSS JOIN WHERE <condition> is always TRUE.
INNER JOIN combines two relations. It takes the second relation, and appends it to
the end of the first relation.
In Corelated Subqueries, subquery is executed independent of the outer query:
subquery is executed only once.
SELECT * FROM sys.Relations
displays information about all the user-defined relations within a database.
Given GENDER and STUDENT relations,
SELECT Gender, FName, LName
FROM GENDER
LEFT OUTER JOIN STUDENT
ON STUDENT.GenderCode = GENDER.GenderCode
SELECT Gender,FName, LName
FROM STUDENT
RIGHT OUTER JOIN GENDER
ON STUDENT.GenderCode = GENDER.GenderCode
|The statements
select RIGHT('l wish I had attended the practice hours', 9) and
select REVERSE(LEFT(REVERSE('l wish I had attended the practice hours'),9))
return/produce the same result.

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