創建存儲過程時出現MySQL錯誤＃1064

Question

這是代碼：

IF(selected_item_id IS NOT NULL AND selected_category IS NOT NULL) THEN

    IF(selected_item_id <> "all") THEN

        SELECT i.id, i.name, i.summary, i.description, i.location, c.name AS 'category_name' FROM items i, categories c WHERE i.category_id = c.id AND i.id LIKE selected_item_id;

    ELSE IF(selected_item_id = "all" AND selected_category <> "all" AND selected_category in (SELECT name FROM categories)) THEN

        SELECT i.id, i.name, i.summary, i.description, i.location, c.name AS 'category_name' FROM items i, categories c WHERE i.category_id = c.id AND c.name LIKE selected_category;

    ELSE IF(selected_item_id = "all" AND selected_category = "all") THEN

        SELECT i.id, i.name, i.summary, i.description, i.location, c.name AS 'category_name' FROM items i, categories c WHERE i.category_id = c.id;

    END IF

END IF

當我嘗試保存它時，我得到：

MySQL說：＃1064在第17行的“ END IF”附近（這是最后一個END IF）

非常感謝您的幫助。

Answer 1

您不需要在ELSE和IF之間添加空間。 請參閱此了解詳情。 然后以分號結束IF。