Access 'Join not supported' Moving LEFT Join - sql

Question

I've done some research here and I understand that in Access nested joins cause issues.
I believe that is the issue in the first example.
SELECT
Recipe_Classes.RecipeClassDescription,
Recipes.RecipeTitle,
Recipes.Preparation,
Ingredients.IngredientName,
Recipe_Ingredients.RecipeSeqNo,
Recipe_Ingredients.Amount,
Measurements.MeasurementDescription
FROM (((
Recipe_Classes
LEFT JOIN Recipes
ON Recipe_Classes.RecipeClassID = Recipes.RecipeClassID)
INNER JOIN Recipe_Ingredients
ON Recipes.RecipeID = Recipe_Ingredients.RecipeID)
INNER JOIN Ingredients
ON Ingredients.IngredientID = Recipe_Ingredients.IngredientID)
INNER JOIN Measurements
ON Measurements.MeasureAmountID = Recipe_Ingredients.MeasureAmountID
ORDER BY RecipeTitle, RecipeSeqNo;
I made an attempt to remove the nesting and created a right join in this example
SELECT
Recipe_Classes.RecipeClassDescription,
Recipes.RecipeTitle,
Recipes.Preparation,
Ingredients.IngredientName,
Recipe_Ingredients.RecipeSeqNo,
Recipe_Ingredients.Amount,
Measurements.MeasurementDescription
FROM (((
Ingredients
INNER JOIN Recipe_Ingredients
ON Ingredeints.IngredientID = Recipe_Ingredients.IngredientID)
INNER JOIN Measurements
ON Measurements.MeasureAmountID = Recipe_Ingredients.MeasureAmountID)
INNER JOIN Recipes
ON Recipes.RecipeID = Recipe_Ingredients.RecipeID)
RIGHT JOIN Recipe_Classes
ON Recipe_Classes.RecipeClassID = Recipes.RecipeClassID
ORDER BY RecipeTitle, RecipeSeqNo;
Can anyone point me in the right direction?

Answer 1

The issue may be the left join that is not needed. Try this from clause:
SELECT Recipe_Classes.RecipeClassDescription,
Recipes.RecipeTitle,
Recipes.Preparation,
Ingredients.IngredientName,
Recipe_Ingredients.RecipeSeqNo,
Recipe_Ingredients.Amount,
Measurements.MeasurementDescription
FROM (((Recipes LEFT JOIN
Recipe_Classes
ON Recipe_Classes.RecipeClassID = Recipes.RecipeClassID
) LEFT JOIN
Recipe_Ingredients
ON Recipes.RecipeID = Recipe_Ingredients.RecipeID
) LEFT JOIN
Ingredients
ON Ingredients.IngredientID = Recipe_Ingredients.IngredientID
) LEFT JOIN Measurements
ON Measurements.MeasureAmountID = Recipe_Ingredients.MeasureAmountID
ORDER BY RecipeTitle, RecipeSeqNo;
Once you start with LEFT JOINs, generally all the remaining joins should also be LEFT JOINs.

Answer 2

Since your main focal point table is Recipe_Ingredients, consider starting with this table in FROM and then JOIN the other parent tables and even nest the Recipes and Recipe_Classes pair:
SELECT
c.RecipeClassDescription,
r.RecipeTitle,
r.Preparation,
i.IngredientName,
ri.RecipeSeqNo,
ri.Amount,
m.MeasurementDescription
FROM
((Recipe_Ingredients ri
INNER JOIN (Recipes r
RIGHT JOIN Recipe_Classes c
ON c.RecipeClassID = r.RecipeClassID)
ON r.RecipeID = ri.RecipeID)
INNER JOIN Ingredients i
ON i.IngredientID = ri.IngredientID)
INNER JOIN Measurements m
ON m.MeasureAmountID = ri.MeasureAmountID
ORDER BY r.RecipeTitle, ri.RecipeSeqNo;
Of course this is untested without data. Due to Access' JOIN requirements like parnetheses, it is often recommended for new users to build complex queries with MS Access' GUI Query Design then modify generated SQL as needed.