The query below is working perfectly well if the user’s phone supports sqlite version 3.25.0 or higher. Otherwise, as you can guess, the query doesn’t work. How can I transform the code, without using the row_number () function?
SELECT * FROM ( SELECT ROW_NUMBER() OVER (PARTITION BY recipe_name) AS rn, rt.* FROM SyncRecipeIngredientTable sr JOIN RecipeIngredientTable ri ON ri.recipe_ingredient_id = sr.recipe_ingredient_id JOIN RecipeTable rt ON rt.recipe_id = sr.recipe_id WHERE ri.recipe_item_name in ("patates", "soğan", "su") GROUP by rt.recipe_id HAVING COUNT(*) >= 3 ) WHERE rn = 1
Advertisement
Answer
I would expect recipes to have unique names. If so, then the outer quer is simply not needed:
SELECT rt.* FROM SyncRecipeIngredientTable sr JOIN RecipeIngredientTable ri ON ri.recipe_ingredient_id = sr.recipe_ingredient_id JOIN RecipeTable rt ON rt.recipe_id = sr.recipe_id WHERE ri.recipe_item_name in ('patates', 'soğan', 'su') GROUP by rt.recipe_id HAVING COUNT(*) >= 3;
If recipes can have duplicated names, then you can use a correlated subquery:
WITH rt AS ( SELECT rt.* FROM SyncRecipeIngredientTable sr JOIN RecipeIngredientTable ri ON ri.recipe_ingredient_id = sr.recipe_ingredient_id JOIN RecipeTable rt ON rt.recipe_id = sr.recipe_id WHERE ri.recipe_item_name in ('patates', 'soğan', 'su') GROUP by rt.recipe_id HAVING COUNT(*) >= 3 ) SELECT rt.* FROM rt WHERE rt.recipe_id = (SELECT MAX(rt2.recipe_id) FROM rt rt2 WHERE rt2.recipe_name = rt.recipe_name );