The database system uses a number of words as keywords, for example as syntax elements in SQL statements or as command names.
There are reserved and non-reserved keywords.
You can use reserved keywords in special identifiers for database objects, but not in simple identifiers.
Example: SELECT
You can use non-reserved keywords in any identifiers for database objects.
Example: COMMIT
We recommend though that you use neither non-reserved nor reserved keywords in identifiers for database objects.