ActualVCE 1Z0-909 Real Exam Question Answers Updated [Feb 14, 2023]
Easily To Pass New Oracle 1Z0-909 Dumps with 66 Questions
Oracle 1Z0-909 Exam Syllabus Topics:
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NEW QUESTION 23
Examine these statement which execute successfully:
Now, examine the statements executed in the mysqi command-line client:
What is true?
- A.
- B.
- C.
- D.
Answer: D
NEW QUESTION 24
Examine the content of the employee table:
Now examine this PHP script:
Finally examine this desired output:
- A. $options = [PDO:: ATTR_DEFAULT_FETCH__MODE => PDO: : FETCH_ASSOC] ;
- B. $options = [PDO:: ATTR_DEFAOLT_FETCH__MODE => PDO : : FETCH_BOTH] ;
- C. $options = [PDO:: ATTR__DEFAULT_FETCH MODE => PDO: :FETCH_CLASS] ;
- D. $options = [PDO:: ATTR_DEFAUXT_FETCH__MODE => PDO: : PDO: :FETCH_OBJ] ;
Answer: B
NEW QUESTION 25
Examine these statements:
SET collation_connection=utf8mb4_0900_as_cs;
SELECT STRCMPCAlice', UCASE ('Alice* )) ;
What is displayed?
- A. 0
- B. ERROR: 1267 (HYOOO): Illegal mix of collations
- C. 1
- D. 2
- E. NULL
Answer: A
NEW QUESTION 26
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(last name,', ',first_name) FROM employees;
- B. SELECT CONCAT_WS(', ',last_name,first_name) FROM employees;
- C. SELECT last_name, ' , ',first_name FROM employees;
- D. SELECT GROUP_CONCAT(last_name, first_name) FROM employees;
- E. SELECT last_name + ', ' + first_name FROM employees;
Answer: A,B
NEW QUESTION 27
Examine this statement:
DECLARE not_found CONDITION FOR SQLSTATE '02000';
In which two statements can not found be used?
- A. in a handler declaration
- B. in a while loop
- C. in a leave statement to exit a loop
- D. in a signal statement
- E. in an if statement
Answer: B,D
NEW QUESTION 28
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.
Answer: A
NEW QUESTION 29
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 30
Examine these statement which execute successfully:
Now, examine this desired output:
Which two queries will produce the out?
A)
B)
D)
E)
- A. Option B
- B. Option C
- C. Option E
- D. Option D
- E. Option A
Answer: A,B
NEW QUESTION 31
Examine these statements which execute successfully:
Which two changes will improve this query performance?
- A. CREATE INDEX 1X2 ON locations (loc_mapping) USING HASH; fH
- B. CREATE INDEX 1X6 ON users (user_name);
- C. CREATE INDEX 1X3 ON locations <loc_site_id) ;
- D. CREATE INDEX 1X4 ON Locations (site_id, loc_shared);
- E. CREATE INDEX 1X7 ON users (user_name) USING HASH;
- F. CREATE INDEX IX1 ON locations (loc_shareci) ;
- G. CREATE INDEX 1X5 ON users (loc_id);
Answer: B,E
NEW QUESTION 32
Examine the output:
Which explain command will obtain the output?
- A. EXPLAIN PORMAT=JSON
- B. EXPLAIN FORMAT=TREE
- C. EXPLAIN ANALYZE
- D. EXPLAIN PARTITIONS
- E. EXPLAIN PORMAT^TRADITIONAL
Answer: D
NEW QUESTION 33
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. There is no access to relational tables.
- E. It depends heavily on strictly typed data.
Answer: A,C
NEW QUESTION 34
A server hosts MySQL Server and Apache Webserver supporting a PHP/PDO based application.
The application must be migrated from PHP to their Java application server on another host. The MySQL instance remains on the original host.
Examine the PDO connection string used in the existing application:
Mysql:host-localhost;dbname=sales;unix_socket=/var/run/mysql.sock
Which two prevent Java from using the Unix socket?
- A. The socket can only be accessed from the local host.
- B. socket is a reserved word in Java.
- C. Java treats the socket file as insecure.
- D. The X Dev API protocol must be enabled to use sockets in Connector/J driver.
- E. The socket is not implemented in Connector/J driver.
Answer: C,E
NEW QUESTION 35
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 returns an error because the PRIMARY ACCOUNT column is not selected for the view definition.
- B. It inserts a row in the emp table.
- C. It returns an error because an insert operation is not allowed on views.
- D. It inserts a row in the view only.
Answer: B
NEW QUESTION 36
Which two are true about MySQL connectors?
- A. Connectors must be installed on both the client and server hosts.
- B. Connector/J is based on Connector/C.
- C. Connector/Python is released in precompiled binary and source code.
- D. Connector/ODBC is available on Unix, Windows, and MacOS X.
- E. Connector/NET runs on the Windows platform only.
Answer: A,B
NEW QUESTION 37
Examine these commands and output:
Which is true?
- A. Existing emp_vuL is dropped and a new emp_vu1 created with the new definition.
- B. It returns an error because the DROP TABLE statement did not drop the view.
- C. A new view is created because the previous was dropped on execution of the drop table statement.
- D. It returns an error because the CREATE TABLE statement automatically recreated the view.
Answer: A
NEW QUESTION 38
Examine these statements and output:
Now, examine this command:
Mysql> ROLLBACK;
What is true about the effect of the command?
- A. It returns an error because there is no active transaction.
- B. It undoes the update command.
- C. It undoes both insert and update commands.
- D. It undoes the insert command.
- E. It has no effect.
Answer: D
NEW QUESTION 39
The variables c and d are declared as integer types.
Examine these initialization statements with placeholder value <p1>, which execute successfully:
Now, examine this loop which executes successfully:
Which loop results in the same value of d for all valid values of <p1>?
A)
B)
C)
- A. Option B
- B. Option C
- C. Option D
- D. Option A
Answer: D
NEW QUESTION 40
Examine this statement:
- A. user who creates the procedure needing the create and execute privileges
- B. Inserting COMMIT; SET @m :=: before line 4
- C. Inserting DEFINER 'username '@' localhost' clause into the CREATE PROCEDURE statement
- D. inserting USE <database >; before line 3
- E. user who creates the procedure needing the create routine privilege
Answer: C
NEW QUESTION 41
Examine this statement and output:
Now, examine these desired output values:
Which statement updates the table data as require
- A. UPDATE examresult SET score=ROUND(CEIL(score
- B. UPDATE exam_result SET score=TRUNCATE
- C. UPDATE exam_result SET score=CEIL(TRUNCATE(sco
- D. UPDATE exam_result SET score=ROUND(score,1);
- E. UPDATE exam_result SET score=CEIL(ROUND(score,1));
- F. UPDATE exam_result SET score=TRUNCATE(score,1);
Answer: D
NEW QUESTION 42
Examine these commands which execute successfully in the sequence shown in Sessions S1 and S2:
Now, examine this statement that execute successfully in s1:
S1> SELECT * FROM emp;
Which is true about the result of the select statement?
- A. The inserted row is not returned because the transaction still active in s2.
- B. The inserted row is returned because the transaction is auto committed in S2.
- C. The inserted row is not returned because the isolation level is READ COMMITTED in S2.
- D. The inserted row is returned because the isolation level is RPEATABLE READ in S1.
Answer: A
NEW QUESTION 43
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