Nils-Johan Gynther
21 lines
695 B
SQL
21 lines
695 B
SQL
-- Lägg till L2: Te & choklad under Dryck
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INSERT INTO `Category` (`name`, `parentId`)
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SELECT 'Te & choklad', c1.id
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FROM `Category` c1
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WHERE c1.name = 'Dryck' AND c1.parentId IS NULL
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AND NOT EXISTS (
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SELECT 1 FROM `Category` c2
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WHERE c2.name = 'Te & choklad' AND c2.parentId = c1.id
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);
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-- Lägg till L3: Te under Te & choklad
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INSERT INTO `Category` (`name`, `parentId`)
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SELECT 'Te', c2.id
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FROM `Category` c1
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JOIN `Category` c2 ON c2.parentId = c1.id AND c2.name = 'Te & choklad'
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WHERE c1.name = 'Dryck' AND c1.parentId IS NULL
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AND NOT EXISTS (
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SELECT 1 FROM `Category` c3
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WHERE c3.name = 'Te' AND c3.parentId = c2.id
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);
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