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: Jun 01, 2023

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1Z0-071 Online Practice Questions and Answers

Questions 1

What is true about non-equijoin statement performance?

A. The between condition always performs less well than using the >= and <= conditions.

B. The Oracle join syntax performs better than the SQL: 1999 compliant ANSI join syntax.

C. The join syntax used makes no difference to performance.

D. The between condition always performs better than using the >= and <= conditions.

E. Table aliases can improve performance.

Show Answer
Questions 2

Which three statements are true about views in an Oracle database?

A. A SELECT statement cannot contain a where clause when querying a view containing a WHERE clause in its defining query

B. Rows inserted into a table using a view are retained in the table if the view is dropped

C. Views can join tables only if they belong to the same schema.

D. Views have no segment.

E. Views have no object number.

F. A view can be created that refers to a non-existent table in its defining query.

Show Answer
Questions 3

Which two tasks can be performed by using Oracle SQL statements? (Choose two.)

A. changing the password for an existing database user

B. connecting to a database instance

C. querying data from tables in different databases

D. starting up a database instance

E. executing operating system (OS) commands in a session

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