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Oracle 1z1-909 Exam Syllabus Topics:

Topic Details
Topic 1
  • Use MySQL Shell to access document stores
  • Retrieve data from the database by using a connector
Topic 2
  • Demonstrate connector use, management and configuration
  • Secure credentials and connections
Topic 3
  • Create and access a document store
  • JSON and Document Store
  • Store and process numeric data
Topic 4
  • Schedule database operations
  • Store and process temporal data
Topic 5
  • Explain application development with NoSQL and XDevAPI
  • Handle and interpret errors and warnings
Topic 6
  • Create and execute stored routines
  • MySQL Schema Objects and Data

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Oracle MySQL 8.0 Database Developer Sample Questions (Q64-Q69):

NEW QUESTION # 64
You are using buffered queries with PHP mysqli in a browser-based web application. Which three are true?

  • A. Buffered queries are enabled by default.
  • B. Results are sent from the server to the browser for buffering.
  • C. Buffered queries should be used on large tables when the result size is unknown.
  • D. Results are sent to the calling PHP process for buffering.
  • E. Buffered queries must be explicitly enabled using mysqliuseresult.
  • F. Large results can have a negative impact on performance.
  • G. Additional queries on the same session are blocked until the result set is released.

Answer: C,E,F
NEW QUESTION # 65
Examine the employee table structure:

Which set of statements immediately returns empname for a given emp_id by using a parameterized prepare statement?
A)



D)

  • A. Option A
  • B. Option B
  • C. Option C
  • D. Option D

Answer: B
NEW QUESTION # 66
You must write a statement that combines the firstname and lastname columns from the employees table as "lastname, firstname." Which two statements will do this?

  • A. SELECT lastname, ' , ',firstname FROM employees;
  • B. SELECT GROUPCONCAT(lastname, first_name) FROM employees;
  • C. SELECT lastname + ', ' + firstname FROM employees;
  • D. SELECT CONCATWS(', ',lastname,first_name) FROM employees;
  • E. SELECT CONCAT(last name,', ',first_name) FROM employees;

Answer: B,C
NEW QUESTION # 67
The continent column in the country table contains no null values.
Examine this output:

A)

B)

C)

D)

  • A. Option B
  • B. Option A
  • C. Option C
  • D. Option D

Answer: B
NEW QUESTION # 68
Examine these commands and output:

Which is true?

  • A. It returns an error because the DROP TABLE statement did not drop the view.
  • B. It returns an error because the CREATE TABLE statement automatically recreated the view.
  • C. Existing empvuL is dropped and a new empvu1 created with the new definition.
  • D. A new view is created because the previous was dropped on execution of the drop table statement.

Answer: C
NEW QUESTION # 69
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