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Oracle 1z0-909 Exam With Confidence Using Practice Dumps

Exam Code:
1z0-909
Exam Name:
MySQL 8.0 Database Developer
Certification:
MySQL Developer
Vendor:
Oracle
Questions:
65
Last Updated:
Nov 21, 2024
Exam Status:
Stable
Oracle 1z0-909

1z0-909: MySQL Developer Exam 2024 Study Guide Pdf and Test Engine

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MySQL 8.0 Database Developer Questions and Answers

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Question 1

Examine these statements issued from Session 1 which execute successfully:

Now, examine this statement issued from Session 2:

What is the outcome of the update statement in Session 2?

Options:

A.

The row will be updated immediately.

B.

The statement will wait for the transaction in Session 1 to finish.

C.

A deadlock will occur.

D.

The transaction in Session 1 will be rolled back automatically.

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Question 2

Examine this statement and output:

Which is true?

Options:

A.

The underlying table's index on the Name column is not chosen because of low selectivity.

B.

myview cannot be automatically indexed.

C.

myview was defined with the temptable processing algorithm.

D.

Column Name in myview can be indexed if the is_updatable attribute is true.

Question 3

Examine these statements and output:

Now, examine this command:

Mysql> ROLLBACK;

What is true about the effect of the command?

Options:

A.

It undoes the update command.

B.

It returns an error because there is no active transaction.

C.

It undoes the insert command.

D.

It undoes both insert and update commands.

E.

It has no effect.

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