To take the correct result if you have LA=False
and MD=True
, try
SELECT Amount * (LA + MD)
FROM test
WHERE LA = true
OR MD = true
Question
I am trying to count the number of true values from a row, and so far it's looking good. After I get the value I would like to multiply that with the value from column 'Amount' in the same row.
Table test look like this, type of LA and MD are tinyint (checkbox)
ID | Amount | LA | MD
------------------------------------
1 | 7 | 1 | 0
2 | 2 | 1 | 1
So far I can count true values from table test using:
SELECT count(*)
FROM test
WHERE LA = true
But ones I start implementing the multiplication it gets messy, not yet that steady on the syntax. Any tips would be greatly appreciated.
La solution
To take the correct result if you have LA=False
and MD=True
, try
SELECT Amount * (LA + MD)
FROM test
WHERE LA = true
OR MD = true
Autres conseils
According to your last comment, the query should be following
SELECT Amount * (LA + MD)
FROM test