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Asked: 2026-05-10T21:02:37+00:00

My list (@degree) is built from a SQL command. The NVL command in the

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My list (@degree) is built from a SQL command. The NVL command in the SQL isn’t working, neither are tests such as:

if (@degree[$i] == '') if (@degree[$i] == ' ') if (@degree[$i] == '') if (@degree[$i] == -1) if (@degree[$i] == 0) if (@degree[$i] == ()) if (@degree[$i] == undef)

$i is a counter variable in a for loop. Basically it goes through and grabs unique degrees from a table and ends up creating ('AFA', 'AS', 'AAS', '', 'BS'). The list is not always this long, and the empty element is not always in that position 3.

Can anyone help?

I want to either test during the for loop, or after the loop completes for where this empty element is and then replace it with the word, ‘OTHER’.

Thanks for anything -Ken

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1 Answer

  1. First of all, the ith element in an array is $degree[$i], not @degree[$i]. Second, ‘==’ is for numerical comparisons – use ‘eq’ for lexical comparisons. Third of all, try if (defined($degree[$i]))

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