Using multiple OR in SQL [closed] - mysql

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I need to write a query which should check if there is at least one column which has a value greater than 0 (>0) in the table. Currently, I have written a 'WHERE' clause with multiple OR conditions. I suspect that this may not be the best way of doing this (may be use SUM?). Seeking opinion from SQL experts.
WHERE raw_0 >0 OR raw_1 >0 OR raw_2 >0 OR raw_3 >0 OR raw_4>0

Answer 1

You can use
WHERE (raw_0 >0 OR raw_1 >0 OR raw_2 >0 OR raw_3 >0 OR raw_4>0);
As per your question. As dnoeth commented, is the easiest to write and understand (and probably the best for the optimizer as there's no calculation involved)
Alternatively you can use:
WHERE ((RAW_0 + RAW_1 + RAW_2 + RAW_3) > 0);
The above condition would be satisfied IF and only IF, atleast one of the values is >0.
You can also use concat operator to concat the strings and check if the concatenated string has value other than zero:
WHERE TO_NUMBER ( RAW_0 || RAW_1 || RAW_2 || RAW_3 ) > 0
Test data for 3rd query:
select 'YES value' data from dual where TO_NUMBER ( 1 || 2) > 0 ;
select 'NO value' data from dual where TO_NUMBER ( 0 || 0) > 0 ;

Answer 2

If the values can only be non-negative, as in one of the OP comment then you can check the multiplication
WHERE raw_0 * raw_1 * raw_2 * raw_3 * raw_4 > 0
but that will check if every value as positive. To check if only one is positive we can negate this logic using the SIGN function
WHERE (1 - SIGN(raw_0))
* (1 - SIGN(raw_1))
* (1 - SIGN(raw_2))
* (1 - SIGN(raw_3))
* (1 - SIGN(raw_4)) = 0
(1 - SIGN(value)) return 1 when the value is zero and 0 when the value is positive, so if at least one value is positive the product will be 0.