liquibase-core/src/main/java/liquibase/database/core/OracleDatabase.java
public boolean isValidOracleIdentifier(String identifier, Class<? extends DatabaseObject> type) {
        if ((identifier == null) || (identifier.length() < 1))
            return false;

        if (!identifier.matches("^(i?)[A-Z][A-Z0-9\\$\\_\\#]*$"))
            return false;

        /*
         * @todo It seems we currently do not have a class for tablespace identifiers, and all other classes
         * we do know seem to be supported as 12cR2 long identifiers, so:
         */
        return (identifier.length() <= LONG_IDENTIFIERS_LEGNTH);
    }
public boolean isValidOracleIdentifier(String identifier, Class<? extends DatabaseObject> type) {
        if ((identifier == null) || (identifier.length() < 1))
            return false;

        if (!identifier.matches("^(i?)[A-Z][A-Z0-9\\$\\_\\#]*$"))
            return false;

        /*
         * @todo It seems we currently do not have a class for tablespace identifiers, and all other classes
         * we do know seem to be supported as 12cR2 long identifiers, so:
         */
        return (identifier.length() <= LONG_IDENTIFIERS_LEGNTH);
    }
Tests if the given String would be a valid identifier in Oracle DBMS. In Oracle, a valid identifier has
the following form (case-insensitive comparison):
1st character: A-Z
2..n characters: A-Z0-9$_#
The maximum length of an identifier differs by Oracle version and object type.