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mysql select nested statement
Dear Experts,
I want to learn why I need to use NULL twice for this nested statement? what is NULL for in this statement?
I want to learn why I need to use NULL twice for this nested statement? what is NULL for in this statement?
SELECT table1.uid,
table1.isim,
NULL,
NULL
FROM table1
WHERE NOT EXISTS (SELECT 1
FROM table2
WHERE bayikodu = table1.uid);
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