`SingleType`

SingleType ::= SimpleTypeName "?"

Appears in specifications:

XML Path Language (XPath) 3.1

3 Expressions
- 3.14 Expressions on SequenceTypes
  - 3.14.2 Cast
  - 3.14.3 Castable
1 XPath 3.1 Grammar
- 1.1 EBNF

XQuery 3.1: An XML Query Language

3 Expressions
- 3.18 Expressions on SequenceTypes
  - 3.18.3 Cast
  - 3.18.4 Castable
1 XQuery 3.1 Grammar
- 1.1 EBNF