SDS™ — Simple DataSet Service

Version: 2025.1
Build: 0.1.1 PRE-REL 4
Specification: SDS Language Spec v1.0-alpha

Overview

SDS™ (Simple DataSet Service) is a lightweight, SQL-inspired data query and manipulation language designed specifically for Scratch-based environments. It provides a structured, readable command format that allows creators to work with datasets, variables, and table-like structures using simple, deterministic instructions.

Core Language Features

• SELECT — Extracts a table from the MAIN dataset
• GET — Retrieves a specific field, item, or value
• ADD — Appends items or variables to lists or tables
• SEND TO — Routes values into SDS or Scratch variables
• MAIN — Central dataset storage for all SDS operations
• Deterministic, line-by-line execution order

What SDS™ Is

SDS™ defines the language, syntax, and behavior of all SDS commands. It is independent of any specific runtime and can be implemented in multiple environments, though it is primarily designed for Scratch.

What SDS™ Is Not

SDS™ is not the SDS Server™ runtime. SDS Server™ executes SDS commands, but the commands themselves belong to the SDS™ language specification.

Language Specification Highlights

• Bracketed identifiers for tables, variables, and fields
• Simple, readable command structure
• Scratch-friendly parsing rules
• Reserved keywords for future expansion
• Designed for low-overhead interpreters

Known Limitations

• No conditional expressions inside SDS commands
• No JOIN, MERGE, or FILTER operations (planned for future specs)
• Error handling is minimal in PRE-REL builds

License Summary

SDS™ is free to use in Scratch projects, educational tools, and non-commercial software. Extensions, interpreters, and modified implementations are allowed with proper attribution to SDS™ by Jasok. SDS™ is provided “as-is” without warranty.