1Z0-071 Questions and Answers

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Oracle Database 12c SQL: 1Z0-071

Rating: 4.5

Vendor: Oracle

Certifications: Oracle Database

Exam Name: Oracle Database 12c SQL

Exam Code: 1Z0-071

Total Questions: 439 Q&As

Last Updated: Jan 17, 2023

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1Z0-071 Online Practice Questions and Answers

Questions 1

Which two are true about the USING clause when joining tables?

A. All column names in a USING clause must be qualified with a table name or table alias.

B. It can never be used with onatural join.

C. It is used to specify an equijoin of columns that have the same name in both tables.

D. It can never be used with a full outer join.

E. It is used to specify an explicit join condition involving operators.

Show Answer
Questions 2

Which three statements are true about a self join?

A. It must be an inner join.

B. It must be an equijoin.

C. The query must use two different aliases for the table.

D. The on clause can be used.

E. The on clause must be used.

F. It can be an outer join.

Show Answer
Questions 3

Which two statements are true about the results of using the intersect operator in compound queries?

A. intersect ignores nulls.

B. Reversing the order of the intersected tables can sometimes affect the output.

C. Column names in each select in the compound query can be different.

D. intersect returns rows common to both sides of the compound query.

E. The number of columns in each select in the compound query can be different.

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