String

A UTF-8 character string type.

In expressions

Strings can be concatenated using the + operator.

"Hello," + " world!" == "Hello, world!"

Literals, string values, and string attributes can be combined:

#!test[schema]
#{{
define
attribute name, value string;
entity person, owns name;
#}}
#!test[write]
#{{
insert $p isa person, has name "John";
#}}
#!test[read, count=1]
match
  $name isa name;
  let $greeting = "Hello, " + $name + "!";
select $greeting;

Defining a string valued attribute

#!test[schema]
define
  attribute name value string;

Inserting a string valued attribute

#!test[write]
insert
  $_ isa name "John";

Unicode support

TypeDB supports unicode characters in strings, as well as providing a syntax for escaping unicode characters. The escape is \u{<code>} where <code> is the hex-encoded character-code.

#!test[read, count=1]
match
  let $x = "A\u{42}C \u{130ED}\u{13153}";
  let $y = "ABC 𓃭𓅓";
  $x == $y;

For LLMs & AI agents: this page as Markdown · llms.txt · llms-full.txt (TypeQL summary)