1z1-909 Revolutionary Guide To Exam Oracle Dumps
1z1-909 Free Study Guide! with New Update 66 Exam Questions
NEW QUESTION 11
Examine this statement and output:
Which will provide the same level of detail when the error is encountered within a stored routine?
A)
B)
C)
D)
- A. Option B
- B. Option D
- C. Option A
- D. Option C
Answer: D
NEW QUESTION 12
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 view only.
- B. It returns an error because an insert operation is not allowed on views.
- C. It inserts a row in the emp table.
- D. It returns an error because the PRIMARY ACCOUNT column is not selected for the view definition.
Answer: C
NEW QUESTION 13
Examine this event's metadata:
Now examine this command:
DROP USER 'userl'e'localhost';
Which effect will the command have on the event?
- A. The event is not scheduled and will no longer execute. The system will log an error.
- B. The event is scheduled but will no longer execute. The system will log an error.
- C. The event is scheduled and executed but fails. The system will log an error.
- D. The event will be dropped without an error or warning.
Answer: B
NEW QUESTION 14
Examine this statement and output:
Now, examine these desired output values:
Which statement updates the table data as require
- A. UPDATE exam_result SET score=ROUND(score,1);
- B. UPDATE exam_result SET score=TRUNCATE
- C. UPDATE exam_result SET score=CEIL(ROUND(score,1));
- D. UPDATE examresult SET score=ROUND(CEIL(score
- E. UPDATE exam_result SET score=CEIL(TRUNCATE(sco
- F. UPDATE exam_result SET score=TRUNCATE(score,1);
Answer: A
NEW QUESTION 15
Which two are true about MySQL Document Store?
- A. It helps to store data items in a schema-less key-value store.
- B. It can store documents greater than 4 GB.
- C. It allows one to bypass the SQL layer of the server.
- D. It depends heavily on strictly typed data.
- E. There is no access to relational tables.
Answer: A,C
NEW QUESTION 16
Which two differences exist between the timestamp and date time data types?
- A. timestamp converts the value based on the session time zone.
- B. timestamp has larger range of values.
- C. timestamp stores more decimal points in seconds
- D. timestamp stores the interval between two dates.
- E. timestamp uses less storage space.
Answer: A,E
NEW QUESTION 17
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 B
- B. Option D
- C. Option C
- D. Option A
Answer: D
NEW QUESTION 18
Examine this statement that execute successfully in an interactive session:
The user running this session now goes to lunch for an hour.
Now, examine these statements executed independently in separate sessions while Session 0 is still active:
How many of them will complete while Session 0 is still active?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
- F. 5
Answer: B
NEW QUESTION 19
Examine this statement:
- A. Inserting COMMIT; SET @m :=: before line 4
- B. user who creates the procedure needing the create and execute privileges
- C. inserting USE <database >; before line 3
- D. user who creates the procedure needing the create routine privilege
- E. Inserting DEFINER 'username '@' localhost' clause into the CREATE PROCEDURE statement
Answer: E
NEW QUESTION 20
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(20) AS (product-
>* S .varieties. VarietyName ' ) VIRTUAL, ADD KEY idx_name (name.) ; - B. ALTER TABLE fshop ADD COLUMN name VARCHAR(20) AS (product->' S - name' ) VIRTUAL, ADD KEY idx_name (name) ;
- C. ALTER TABLE fshop ADD COLUMN name VARCHAR(20), ADD KEY idx_name (name) ;
- D. ALTER TABLE fshop ADD name VARCHAR(20) AS (JSON_ONQUOTE (product->"S.varieties.VarietyName")), ADD INDEX (name);
- E. ALTER TABLE fshop ADD COLUMN name VARCHAR(100) AS (product->' S - varieties' ) VIRTUAL, ADD KEY idx_name (name) ;
Answer: E
NEW QUESTION 21
Which two statements are true about aggregate functions?
- A. AVG () does not allow use of the distinct option.
- B. MIN () cannot use distinct when it executes as a Windows function.
- C. MAX () returns null if there are no rows to aggregate.
- D. SUM () returns o if there are no rows to aggregate.
- E. COUNT (distinct) returns a count of the number of rows with different values including Null.
Answer: A
NEW QUESTION 22
How does InnoDB choose deadlock victims in MySQL?
- A. It chooses the transaction randomly.
- B. It chooses the transaction with the lowest transaction ID.
- C. It chooses the transaction with the least accumulated CPU time.
- D. It chooses the transaction with the most modified rows.
- E. It chooses the transaction with the fewest modified rows.
- F. It chooses the transaction with the most accumulated CPU time.
Answer: A
NEW QUESTION 23
Examine this statement and output:
CREATE TABLE geom (g GEOMETRY NOT NOLL, SPATIAL INDEX(g) ) ; Query OK, 0 rows affected, 1 warning (0.01 sec) An attempt is made to add an SRID attribute to the column using the statement:
ALTER TABLE geom MODIFY COLUMN g geometry NOT NULL SRID 0;
Which is true?
- A. Execution succeeds and allows the use of the index by the optimizer.
- B. An error is generated because the index prevents changes to the column.
- C. An error is generated because srid o is an invalid identifier value.
- D. Execution succeeds with a warning.
Answer: B
NEW QUESTION 24
Examine this table definition:
The table must always remain a valid document store collection. What restriction does this impose on any added column?
- A. The column must be indexed.
- B. The column must have a default value.
- C. The column must be a generated column referencing any attribute of doc.
- D. The column must be used in a unique constraint.
- E. The column must be a generated column referencing only an existing attribute of doc.
Answer: C
NEW QUESTION 25
You must write a statement that combines the first_name and last_name columns from the employees table as "last_name, first_name." Which two statements will do this?
- A. SELECT CONCAT_WS(', ',last_name,first_name) FROM employees;
- B. SELECT last_name, ' , ',first_name FROM employees;
- C. SELECT last_name + ', ' + first_name FROM employees;
- D. SELECT CONCAT(last name,', ',first_name) FROM employees;
- E. SELECT GROUP_CONCAT(last_name, first_name) FROM employees;
Answer: C,E
NEW QUESTION 26
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