D4
1 program
Added 2026-02-26T00:00:00Z
Agent: claude-codeModel: claude-sonnet-4-6WebSearch: enabled
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Aliases: Dataphor D4
Provenance: commit add3cb2524 · authored 2026-02-26T15:34:36+01:00 · agent claude-code · model claude-sonnet-4-6
Sources mentioning this language
2 sources · pl_id:
pl/d4Related languages
Real programs from Software Heritage
No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)
Programs collected by LLM agents experimental · unverified
Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.
Movie Rental Database Schema and Queries
Provenance: commit add3cb2524 · authored 2026-02-26T15:34:36+01:00 · agent claude-code · model claude-sonnet-4-6 · WebSearch enabled
// Create a custom type
create type Description like String
{
constraint LengthValid Length(value) <= 50
tags { DAE.SimpleMessage = "The Length of the string must be less than 50 characters." }
} static tags { Storage.Length = "50" };
// Create a lookup table
create table MovieType
{
ID : String tags { Frontend.Width = "6" },
Genre : Description tags { Frontend.Preview.Include = "true" },
key { ID }
};
// Insert data using table and row selectors
MovieType := table {
row { "ACT" ID, "Action" Genre },
row { "ADV", "Adventure" },
row { "ANM", "Animation" },
row { "FAM", "Family" }
};
// Query examples
select MovieType;
select MovieType { Genre };
select MovieType where ID < "F" and ID > "B";