ACCESS SQL - Sum column grouped by a criteria and show also empty results












1














For this question, let's say I have two tables: Transactions and Categories.



Transactions:




  • Transaction_ID

  • Category_ID_FK

  • TransactionDate

  • TransactionValue


Categories:




  • Category_ID

  • CategoryDescritpion


I am trying to write a query that will sum all the TransactionValues that took place in a month (December, for instance) grouped by Category_ID and display the results for all category even when there are no Transactions on the table for a specific Category.



SELECT Categories.Category_ID, Sum(TransactionValue) 
FROM Categories LEFT JOIN Transactions ON Categories.Category_ID = Transactions.Category_ID_FK
WHERE Month(TransactionDate) = '12'


With this, I only get results from categories that have at least one transaction on the Transactions table.



Thank you all!










share|improve this question
























  • Your query has no GROUP BY, so you should be getting a syntax error.
    – Gordon Linoff
    Nov 12 '18 at 21:19
















1














For this question, let's say I have two tables: Transactions and Categories.



Transactions:




  • Transaction_ID

  • Category_ID_FK

  • TransactionDate

  • TransactionValue


Categories:




  • Category_ID

  • CategoryDescritpion


I am trying to write a query that will sum all the TransactionValues that took place in a month (December, for instance) grouped by Category_ID and display the results for all category even when there are no Transactions on the table for a specific Category.



SELECT Categories.Category_ID, Sum(TransactionValue) 
FROM Categories LEFT JOIN Transactions ON Categories.Category_ID = Transactions.Category_ID_FK
WHERE Month(TransactionDate) = '12'


With this, I only get results from categories that have at least one transaction on the Transactions table.



Thank you all!










share|improve this question
























  • Your query has no GROUP BY, so you should be getting a syntax error.
    – Gordon Linoff
    Nov 12 '18 at 21:19














1












1








1







For this question, let's say I have two tables: Transactions and Categories.



Transactions:




  • Transaction_ID

  • Category_ID_FK

  • TransactionDate

  • TransactionValue


Categories:




  • Category_ID

  • CategoryDescritpion


I am trying to write a query that will sum all the TransactionValues that took place in a month (December, for instance) grouped by Category_ID and display the results for all category even when there are no Transactions on the table for a specific Category.



SELECT Categories.Category_ID, Sum(TransactionValue) 
FROM Categories LEFT JOIN Transactions ON Categories.Category_ID = Transactions.Category_ID_FK
WHERE Month(TransactionDate) = '12'


With this, I only get results from categories that have at least one transaction on the Transactions table.



Thank you all!










share|improve this question















For this question, let's say I have two tables: Transactions and Categories.



Transactions:




  • Transaction_ID

  • Category_ID_FK

  • TransactionDate

  • TransactionValue


Categories:




  • Category_ID

  • CategoryDescritpion


I am trying to write a query that will sum all the TransactionValues that took place in a month (December, for instance) grouped by Category_ID and display the results for all category even when there are no Transactions on the table for a specific Category.



SELECT Categories.Category_ID, Sum(TransactionValue) 
FROM Categories LEFT JOIN Transactions ON Categories.Category_ID = Transactions.Category_ID_FK
WHERE Month(TransactionDate) = '12'


With this, I only get results from categories that have at least one transaction on the Transactions table.



Thank you all!







sql ms-access






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share|improve this question








edited Nov 12 '18 at 21:19









Gordon Linoff

758k35291399




758k35291399










asked Nov 12 '18 at 21:18









Bruno Giusti Coronato

82




82












  • Your query has no GROUP BY, so you should be getting a syntax error.
    – Gordon Linoff
    Nov 12 '18 at 21:19


















  • Your query has no GROUP BY, so you should be getting a syntax error.
    – Gordon Linoff
    Nov 12 '18 at 21:19
















Your query has no GROUP BY, so you should be getting a syntax error.
– Gordon Linoff
Nov 12 '18 at 21:19




Your query has no GROUP BY, so you should be getting a syntax error.
– Gordon Linoff
Nov 12 '18 at 21:19












1 Answer
1






active

oldest

votes


















0














You can use a subquery in MS Access:



SELECT c.Category_ID, Sum(t.TransactionValue) 
FROM Categories as c LEFT JOIN
(SELECT t.*
FROM Transactions as t
WHERE Month(t.TransactionDate) = 12
) as t
ON c.Category_ID = t.Category_ID_FK
GROUP BY c.Category_ID;


The typical SQL syntax would include the condition in the ON clause:



SELECT c.Category_ID, Sum(t.TransactionValue) 
FROM Categories as c LEFT JOIN
Transactions as t
ON c.Category_ID = t.Category_ID_FK AND Month(t.TransactionDate) = 12
GROUP BY c.Category_ID;


I don't think that MS Access supports this syntax.






share|improve this answer





















  • Thank you, Gordon. That solved it. The second solution didn't work on Access, as you mentioned. I got a "JOIN expression not supported" error
    – Bruno Giusti Coronato
    Nov 13 '18 at 14:30











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














You can use a subquery in MS Access:



SELECT c.Category_ID, Sum(t.TransactionValue) 
FROM Categories as c LEFT JOIN
(SELECT t.*
FROM Transactions as t
WHERE Month(t.TransactionDate) = 12
) as t
ON c.Category_ID = t.Category_ID_FK
GROUP BY c.Category_ID;


The typical SQL syntax would include the condition in the ON clause:



SELECT c.Category_ID, Sum(t.TransactionValue) 
FROM Categories as c LEFT JOIN
Transactions as t
ON c.Category_ID = t.Category_ID_FK AND Month(t.TransactionDate) = 12
GROUP BY c.Category_ID;


I don't think that MS Access supports this syntax.






share|improve this answer





















  • Thank you, Gordon. That solved it. The second solution didn't work on Access, as you mentioned. I got a "JOIN expression not supported" error
    – Bruno Giusti Coronato
    Nov 13 '18 at 14:30
















0














You can use a subquery in MS Access:



SELECT c.Category_ID, Sum(t.TransactionValue) 
FROM Categories as c LEFT JOIN
(SELECT t.*
FROM Transactions as t
WHERE Month(t.TransactionDate) = 12
) as t
ON c.Category_ID = t.Category_ID_FK
GROUP BY c.Category_ID;


The typical SQL syntax would include the condition in the ON clause:



SELECT c.Category_ID, Sum(t.TransactionValue) 
FROM Categories as c LEFT JOIN
Transactions as t
ON c.Category_ID = t.Category_ID_FK AND Month(t.TransactionDate) = 12
GROUP BY c.Category_ID;


I don't think that MS Access supports this syntax.






share|improve this answer





















  • Thank you, Gordon. That solved it. The second solution didn't work on Access, as you mentioned. I got a "JOIN expression not supported" error
    – Bruno Giusti Coronato
    Nov 13 '18 at 14:30














0












0








0






You can use a subquery in MS Access:



SELECT c.Category_ID, Sum(t.TransactionValue) 
FROM Categories as c LEFT JOIN
(SELECT t.*
FROM Transactions as t
WHERE Month(t.TransactionDate) = 12
) as t
ON c.Category_ID = t.Category_ID_FK
GROUP BY c.Category_ID;


The typical SQL syntax would include the condition in the ON clause:



SELECT c.Category_ID, Sum(t.TransactionValue) 
FROM Categories as c LEFT JOIN
Transactions as t
ON c.Category_ID = t.Category_ID_FK AND Month(t.TransactionDate) = 12
GROUP BY c.Category_ID;


I don't think that MS Access supports this syntax.






share|improve this answer












You can use a subquery in MS Access:



SELECT c.Category_ID, Sum(t.TransactionValue) 
FROM Categories as c LEFT JOIN
(SELECT t.*
FROM Transactions as t
WHERE Month(t.TransactionDate) = 12
) as t
ON c.Category_ID = t.Category_ID_FK
GROUP BY c.Category_ID;


The typical SQL syntax would include the condition in the ON clause:



SELECT c.Category_ID, Sum(t.TransactionValue) 
FROM Categories as c LEFT JOIN
Transactions as t
ON c.Category_ID = t.Category_ID_FK AND Month(t.TransactionDate) = 12
GROUP BY c.Category_ID;


I don't think that MS Access supports this syntax.







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 12 '18 at 21:19









Gordon Linoff

758k35291399




758k35291399












  • Thank you, Gordon. That solved it. The second solution didn't work on Access, as you mentioned. I got a "JOIN expression not supported" error
    – Bruno Giusti Coronato
    Nov 13 '18 at 14:30


















  • Thank you, Gordon. That solved it. The second solution didn't work on Access, as you mentioned. I got a "JOIN expression not supported" error
    – Bruno Giusti Coronato
    Nov 13 '18 at 14:30
















Thank you, Gordon. That solved it. The second solution didn't work on Access, as you mentioned. I got a "JOIN expression not supported" error
– Bruno Giusti Coronato
Nov 13 '18 at 14:30




Thank you, Gordon. That solved it. The second solution didn't work on Access, as you mentioned. I got a "JOIN expression not supported" error
– Bruno Giusti Coronato
Nov 13 '18 at 14:30


















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