SQL Reference
Reserved Words
Keywords in are specific words that the database can interpret either as SQL syntax or unquoted identifiers. You cannot use a subset of them, named reserved words, as unquoted identifiers without introducing parsing ambiguities in the database. As a result, when you use these words as an identifier, you must surround the reserved word with double quotes.
You can find these words in the sys.reserved_words system catalog table.
Last modified on May 27, 2026

