Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
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CREATE TABLE request (
req_id INT NOT NULL,
req_text VARCHAR(255) NOT NULL,
recipient_id INT NOT NULL,
sender_id INT NOT NULL,
PRIMARY KEY (req_id)
);
CREATE TABLE users (
id INT NOT NULL,
name VARCHAR(255) NOT NULL,
PRIMARY KEY (id)
);
select
req_id, req_text,
recipient.name as recipient_name,
sender.name as sender_name
from request
join users as recipient on request.recipient_id = recipient.id
join users as sender on request.sender_id = sender.id;
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