Exam Name: MySQL 8.0 Database Developer
Certification Provider: Oracle
Corresponding Certification: MySQL Developer
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No. of Questions: 66 Questions & Answers
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Oracle 1Z0-909 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Data-driven Applications | - Application-level SQL usage
|
| Topic 2: Query Optimization | - Performance tuning
|
| Topic 3: Transactions | - Transaction management
|
| Topic 4: MySQL Schema Objects and Data | - Database object design
|
| Topic 5: MySQL Stored Programs | - Stored program development
|
| Topic 6: Connectors and APIs | - Connector selection and usage
|
| Topic 7: JSON and Document Store | - JSON processing and NoSQL features
|
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Yes, the official recommendations are:
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The Oracle MySQL 8.0 Database Developer leads to the Oracle Certified Professional (OCP) MySQL 8.0 Database Developer certification at the Professional level. Employers notice it in interviews — it's shorthand for proven ability, and it often decides who reaches the final round. It also pairs with related credentials like MySQL 8.0 Database Administrator, Oracle Certified Professional MySQL 8.0 if you plan to keep climbing.
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The Oracle MySQL 8.0 Database Developer blueprint spans 7 domains, including Query Optimization, Transactions, Data-driven Applications. Those percentages are the vendor telling you where the points are — spend your limited study hours accordingly. The complete outline above breaks down every subtopic.
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Oracle MySQL 8.0 Database Developer Sample Questions:
Examine these statement which execute successfully:
Now, examine this desired output:
Which two queries will produce the out?
- A.
- B.
- C.
- D.
- E.
Correct Answer: D,E 🗳️
You must enforce data integrity for data Inserted in a JSON column.
Which statement successfully creates a constraint in a 3SON column?
- A. CREATE TABLE fshop ( product JSON, f INT' GENERATED ALWAYS AS (product->"S - id") ) ;
- B. CREATE TABLE fshop (id INT NOT NULL AUTO_ INCREMENT, product JSON, CHECK (id>0) ) ENGXNE=InnoDB;
- C. CREATE TABLE fshop (product JSON CHECK (JSON_VALID(product) ) ) ;
- D. CREATE TABLE fshop (id INT NOT NULL AUTOINCREMENT, product JSON, PRIMARY KEY (id)) ENGINE=InnoDB;
Correct Answer: D 🗳️
Examine these statements which execute successfully:
The statements executed without exception. Which two are true?
- A. No row is inserted into band.
- B. No transaction commits.
- C. Two transactions commit.
- D. The transaction is rolled back to the savepoint.
- E. One row is inserted into band.
Correct Answer: B,E 🗳️
Which two differences exist between the timestamp and date time data types?
- A. timestamp stores more decimal points in seconds
- B. timestamp converts the value based on the session time zone.
- C. timestamp stores the interval between two dates.
- D. timestamp has larger range of values.
- E. timestamp uses less storage space.
Correct Answer: B,E 🗳️
Examine the structure of the emp table:
Examine the structure of the emp_vu1 view based on the emp table:
Now, examine this statement:
mysq1> INSERT INTO emp_vul VALUES ('Alice',20000) ;
What is true about executing the statement?
- A. It inserts a row in the emp table.
- B. It inserts a row in the view only.
- C. It returns an error because the PRIMARY ACCOUNT column is not selected for the view definition.
- D. It returns an error because an insert operation is not allowed on views.
Correct Answer: A 🗳️
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