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Oracle 1Z0-909 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Analyze queries for optimization
  • Aggregate and summarize data
  • Data-driven Applications
Topic 2
  • Schedule database operations
  • Store and process temporal data
Topic 3
  • Resolve consistency problems with isolation levels
  • Set SQL Modes to change MySQL behavior
Topic 4
  • Create and execute stored routines
  • MySQL Schema Objects and Data
Topic 5
  • Demonstrate connector use, management and configuration
  • Secure credentials and connections
Topic 6
  • Create and access a document store
  • JSON and Document Store
  • Store and process numeric data
Topic 7
  • Rewrite queries for optimization
  • Store and process string data
Topic 8
  • Understand locking mechanisms within MySQL
  • Control transactions in applications
Topic 9
  • Explain the programming constructs used in stored routines
  • Choose between connectors for a given application

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Oracle MySQL 8.0 Database Developer Sample Questions (Q52-Q57):

NEW QUESTION # 52
Examine the contents of these tables:

Now examine the expected results for a user with privileges to access the table:

Which query returns the expected results?
A)

B)

C)

D)

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

Answer: B


NEW QUESTION # 53
Examine these statements:
SET collation_connection=utf8mb4_0900_as_cs;
SELECT STRCMPCAlice', UCASE ('Alice* )) ;
What is displayed?

  • A. ERROR: 1267 (HYOOO): Illegal mix of collations
  • B. NULL
  • C. 0
  • D. 1
  • E. 2

Answer: C


NEW QUESTION # 54
Examine this bar graph based on columns from the players table:

Which two statements would generate this bar graph?

  • A. SELECT Name, Gender, Sport, CHAR_LENGTH ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
  • B. SELECT Name, Gender, Sport, CONCAT ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
  • C. SELECT Name, Gender, Sport, REPEAT('# 'Y GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
  • D. SELECT Name, Gender, Sport, LENGTH (GPA*10, '# ') AS GPA_Graph FROM players ORDER BY GPA DESC;
  • E. SELECT Name, Gender, Sport, RPAD ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

Answer: D,E


NEW QUESTION # 55
Which select statement returns true?

  • A. SELECT NULL <=> NULL;
  • B. SELECT NULL := NULL;
  • C. SELECT NULL <> NULL;
  • D. SELECT NULL = NULL;

Answer: A


NEW QUESTION # 56
Which statement is true about the show errors command?

  • A. It cannot display information for more than max_errot_count server system variable setting.
  • B. It displays similar diagnostics results as get diagnostics.
  • C. It displays the total number of errors, warnings, and notes since the server last restarted.
  • D. It displays errors messages only, since the server last restarted.
  • E. It displays the total number of errors, warnings, and notes since the beginning of the current session.
  • F. It displays errors messages only, since the start time of the current session.

Answer: E


NEW QUESTION # 57
......

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