Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
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CREATE TABLE table1
(
id int
);
INSERT INTO table1 VALUES (1), (2), (3);
CREATE TABLE table2
(
id int
);
INSERT INTO table2 VALUES (1), (2);
SELECT * FROM table1;
DELETE FROM table1
WHERE NOT EXISTS (SELECT id FROM table2 WHERE table2.id = table1.id);
SELECT * FROM table1;
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