The collection col contains all episodes for all seasons for a TV show. Examine this document which has an example of the details for each episode: https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/1Z0-909/page_14_img_2.jpg Which query returns all expisode names from the first season?

SELECT "S.name" FROM col WHERE "S.season" = "1";

SELECT doc->"$.name" FROM col WHERE doc->"$.season" = "1";

SELECT "S.name" FROM col WHERE "S.season" = "1";

SELECT doc-»,,$.name,, FROM col WHERE doc-»"$ . season" = "1";

SELECT name FROM col WHERE season = 1;

Examine this statement which has executed successfully: https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/1Z0-909/page_4_img_1.jpg

Execution performance can be improved by using like instead of RLIKE.

The statement takes advantage of index description_idx.

Execution performance can be improved by, using a composite index with column description as the leftmost prefix column description.

No index will improve statement performance.

Execution performance can be improved by adding an index on column description.

Examine this event's metadata: https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/1Z0-909/page_16_img_1.jpg Now examine this command: DROP USER 'userl'e'localhost'; Which effect will the command have on the event?

The event is scheduled but will no longer execute. The system will log an error.

The event is scheduled and executed but fails. The system will log an error.

The event is scheduled but will no longer execute. The system will log an error.

The event will be dropped without an error or warning.

The event is not scheduled and will no longer execute. The system will log an error.

Examine these commands and output: https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/1Z0-909/page_2_img_1.jpg Which is true?

It returns an error because the DROP TABLE statement did not drop the view.

Existing emp_vuL is dropped and a new emp_vu1 created with the new definition.

A new view is created because the previous was dropped on execution of the drop table statement.

It returns an error because the CREATE TABLE statement automatically recreated the view.

It returns an error because the DROP TABLE statement did not drop the view.

The meeting table stores meeting schedules with participants from five continents. The participants' details are stored in another table. https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/1Z0-909/page_18_img_2.jpg You need to adjust the start_time and duration columns for optimal storage. What datatype changes would achieve this?

start_time DATETIME duration DATETIME

start_time TIMESTAMP duration TIMESTAMP

start_time TIMESTAMP duration TIME

start_time DATETIME duration DATETIME

start__time DATETIME duration TIME

Examine the structure of the emp table: https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/1Z0-909/page_3_img_1.jpg Examine the structure of the emp_vu1 view based on the emp table: https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/1Z0-909/page_3_img_2.jpg Now, examine this statement: mysq1> INSERT INTO emp_vul VALUES ('Alice',20000) ; What is true about executing the statement?

It inserts a row in the emp table.

It returns an error because an insert operation is not allowed on views.

It inserts a row in the view only.

It returns an error because the PRIMARY ACCOUNT column is not selected for the view definition.

Examine this statement and output: https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/1Z0-909/page_18_img_1.jpg What causes the error?

The database server process does not have sufficient privilege.

The set local_infile option has not been enabled.

The database user does not have sufficient privilege.

The database server process does not have sufficient privilege.

The database client process does not have sufficient privilege.

The database server is running in read-only mode.

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Oracle 1Z0-909

Q: 1

You are using buffered queries with PHP mysqli in a browser-based web application. Which three are true?

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Q: 2

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?

Options

Q: 3

The collection col contains all episodes for all seasons for a TV show. Examine this document which has an example of the details for each episode: Oracle 1Z0-909 question

Which query returns all expisode names from the first season?

Options

Q: 4

Examine this statement which has executed successfully: Oracle 1Z0-909 question

Options

Q: 5

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

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Q: 6

The continent column in the country table contains no null values. Examine this output: Oracle 1Z0-909 question

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Q: 7

Examine this event's metadata: Oracle 1Z0-909 question

Now examine this command: DROP USER 'userl'e'localhost'; Which effect will the command have on the event?

Options

Q: 8

Examine these commands and output: Oracle 1Z0-909 question

Which is true?

Options

Q: 9

Which select statement returns true?

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Q: 10

The meeting table stores meeting schedules with participants from five continents. The participants' details are stored in another table. Oracle 1Z0-909 question

You need to adjust the start_time and duration columns for optimal storage. What datatype changes would achieve this?

Options

Q: 11

Which change will prevent negative ages to be inserted into the people table?

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Q: 12

What is an advantage of using mysqli in PHP programs rather than using PHP Data Objects (PDO)?

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Q: 13

Examine the structure of the emp table: Oracle 1Z0-909 question

Examine the structure of the emp_vu1 view based on the emp table: Oracle 1Z0-909 question

Now, examine this statement: mysq1> INSERT INTO emp_vul VALUES ('Alice',20000) ; What is true about executing the statement?

Options

Q: 14

Examine this statement and output: Oracle 1Z0-909 question

What causes the error?

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Q: 15

Which two differences exist between the timestamp and date time data types?

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Question 1 of 20

Oracle 1Z0-909

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Free 1Z0-909 Practice Test Questions and Answers (2026) | Cert Empire Practice Questions

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