In Vertica, when querying for month_name with variations of December (e.g., dec, Dec) what will the output be?

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Multiple Choice

In Vertica, when querying for month_name with variations of December (e.g., dec, Dec) what will the output be?

Case-sensitive string comparison in Vertica means that exact capitalization must match when filtering data. When you filter for a value like DEC, Vertica checks for rows where month_name is exactly the three characters D, E, C in upper case. Variants such as dec or Dec are considered different strings, so they won't be returned by a simple equality check. That’s why only entries that have DEC exactly will be included. If you want to include all case variants, you can normalize the case on both sides (for example, WHERE UPPER(month_name) = 'DEC' or WHERE LOWER(month_name) = 'dec') or use a case-insensitive pattern match like month_name ILIKE 'dec'.

Case-sensitive string comparison in Vertica means that exact capitalization must match when filtering data. When you filter for a value like DEC, Vertica checks for rows where month_name is exactly the three characters D, E, C in upper case. Variants such as dec or Dec are considered different strings, so they won't be returned by a simple equality check. That’s why only entries that have DEC exactly will be included.

If you want to include all case variants, you can normalize the case on both sides (for example, WHERE UPPER(month_name) = 'DEC' or WHERE LOWER(month_name) = 'dec') or use a case-insensitive pattern match like month_name ILIKE 'dec'.

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