Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
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CREATE TABLE users (
id SERIAL PRIMARY KEY,
nane text
-- other columns
);
CREATE TABLE categories (
key SERIAL PRIMARY KEY,
user_id int,
nane text
-- other columns
);
SELECT
users.*, categories.key as category
FROM users
JOIN categories ON categories.user_id = users.id
WHERE categories.key = 1
;
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