AbhiJeet
asked on
delphi 3
I have two implement below logic,
case function of
1 : Showmessage ('1');
2: Showmessage('2');
3: showmessage('3');
function in above statement shall return 1 or 2 or 3 querying a table on below conditions:
The table has two columns eg A and B, which contain either 0 or 1 values.
First condition shall be querying the table where column B has all 0 values. For this condition the function shall return 1.
Second condition: Column B has all 1 values and column A has 0 values. For this condition the function shall return 2.
Third condition: Column B has all 1 values and Column A has 1 values, for this condition the function shall returen 3.
Need help with code snippet !
case function of
1 : Showmessage ('1');
2: Showmessage('2');
3: showmessage('3');
function in above statement shall return 1 or 2 or 3 querying a table on below conditions:
The table has two columns eg A and B, which contain either 0 or 1 values.
First condition shall be querying the table where column B has all 0 values. For this condition the function shall return 1.
Second condition: Column B has all 1 values and column A has 0 values. For this condition the function shall return 2.
Third condition: Column B has all 1 values and Column A has 1 values, for this condition the function shall returen 3.
Need help with code snippet !
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ASKER
any other nice and simple work around?
It involves DB and records, no other work around.
The only way to do that is to read the records from the database so that's the best that it could be.
Probably you can explain, what did you expect the solution to look like.
The only way to do that is to read the records from the database so that's the best that it could be.
Probably you can explain, what did you expect the solution to look like.
from a quote: "nulls are evil"
from the text of your question: either 0 or 1 values
what do you understand as 0 values
> the column has all values as zero (or 0)
> the column has all nulls (or 0 values)
your question contains ambiguities and because of that it's unclear what you want
> you'll have to explain in more detail what you want
from the text of your question: either 0 or 1 values
what do you understand as 0 values
> the column has all values as zero (or 0)
> the column has all nulls (or 0 values)
your question contains ambiguities and because of that it's unclear what you want
> you'll have to explain in more detail what you want
as jimyX pointed out, the else condition is missing
or the equation of your abstract problem is not complete