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Latest Upload Oracle Free 1Z0-909 Brain Dumps - 1Z0-909 MySQL 8.0 Database Developer Reliable Test Labs

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Oracle 1Z0-909 Exam, also known as the MySQL 8.0 Database Developer exam, is a certification exam that tests a candidate's knowledge and skills in designing, developing, and managing MySQL databases. 1Z0-909 exam is intended for database developers who want to validate their expertise in MySQL technologies and acquire a professional certification that demonstrates their proficiency to potential employers or clients.

Oracle MySQL 8.0 Database Developer Sample Questions (Q28-Q33):

NEW QUESTION # 28
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?

A. The statement will wait for the transaction in Session 1 to finish.
B. The row will be updated immediately.
C. A deadlock will occur.
D. The transaction in Session 1 will be rolled back automatically.

Answer: D

NEW QUESTION # 29
Examine these MySQL Shell statements:

What is the true about the attempts to add document to the collection?

A. First two documents are added, then mismatched field names cause a warning.
B. All documents are added without any error or warning.
C. First two documents are added, then mismatched field names cause an error.
D. All documents are added and cause a warning.
E. First three documents are added, then different number of fields cause an error.

Answer: D

NEW QUESTION # 30
Which two statements are true about AUTO_INCREMENT?

A. An AUTO_INCREMENT column must be indexed.
B. AUTO_INCREMENT values allocated to a transaction that is rolled back are not reused.
C. The decimal data type supports AUTO_INCREMENT.
D. A server restart always resets the AUTO_INCREMENT value to largest value in the AUTO_INCREMENT column plus 1.
E. A table can have multiple AUTO_INCREMENT columns.

Answer: C,D

NEW QUESTION # 31
Examine this statement which executes successfully:
CREATE TABLE 'fshop' ('product' JSON DEFAULT NULL ) ENGINE=InnoDB;
Now, examine a json value contained in the table:
{"name" : "orange", "varieties" : [{"VarietyName":"Clementine", "Origin" : ["PA", "BU"] }, {"VarietyName": "tangerine", "Origin" : ["CH","JP"]>]> Which will cause documents to be indexed over the 'name' key?

A. ALTER TABLE fshop ADD COLUMN name VARCHAR(100) AS (product->' S - varieties' ) VIRTUAL, ADD KEY idx_name (name) ;
B. ALTER TABLE fshop ADD name VARCHAR(20) AS (JSON_ONQUOTE (product->"S.varieties.VarietyName")), ADD INDEX (name);
C. ALTER TABLE fshop ADD COLUMN name VARCHAR(20) AS (product->' S - name' ) VIRTUAL, ADD KEY idx_name (name) ;
D. ALTER TABLE fshop ADD COLUMN name VARCHAR(20), ADD KEY idx_name (name) ;
E. ALTER TABLE fshop ADD COLUMN name VARCHAR(20) AS (product-
>* S .varieties. VarietyName ' ) VIRTUAL, ADD KEY idx_name (name.) ;

Answer: A

NEW QUESTION # 32
The employee table includes these columns:
e_id INT, e_name VARCHAR (45), dept_id INT salart INT
You must create a stored function, getMaxSalary(), which returns the maximum salary paid for a given department id.
Which statement will create the function?

Answer: C

NEW QUESTION # 33
......

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