Literals

With the exception of NULL values, there are corresponding literals for each group of values:

---

literal ::= { alphanumeric_literal | national_literal | special_literal | numeric_literal | time_literal }

---

alphanumeric_literal

Alphanumeric literal (see section "Alphanumeric literals").

national_literal

National literal (see section "National literals").

special_literal

Special literal (see section "Special literals").

numeric_literal

Numeric literal (see section "Numeric literals").

time_literal

Time value (see section "Time literals").