Set a flag if certain columns contain a value

Question

I have a table with multiple different columns. Each of these fields can contain 1 or 0. So how would I write a statement that sets a "flag" if each of these columns contain a 1. Again, I only want the field to be set if
each column in the row contains a 1. I know I can use "nested If statements" but I was wondering if there is a cleaner, more organized way.
Thanks.

Answer 1

>> I have a table with multiple different columns. Each of these fields [sic] can contain 1 or 0. So how would I write a statement that sets a "flag" if each of these columns contain a 1. <<
You missed a basic concept; columns are not fields. This is fundamental. Then you do not know that we never use flags in SQL. That was assembly language, not SQL. Please read:
https://www.simple-talk.com/sql/t-sql-programming/bit-of-a-problem/
>> Again, I only want the field [sic] to be set if each column in the row contains a 1. I know I can use "nested If statements" but I was wondering if there is a cleaner, more organized way. <<
SELECT
 CASE (c1+ c2+ c3+ ..+ cn)
  WHEN <<n>>  THEN 'All Bit flags on!'
  WHEN 0 THEN 'No Bit flags on!'
  ELSE 'Some Bit flags on!'
END AS assembly_flg
FROM Foobar;
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