SQL reference (H2 mirror)

H2Sharp's own design over H2 content. Anchors are stable: #commands, #functions, #datatypes, #grammar, #systemtables — deep links survive a site move.

This is H2's full grammar, not the engine's capabilities. The pages below mirror what the port is written against; the engine executes a subset today (no JOIN, subqueries, window functions or MERGE yet). See port status for what actually runs.
Verified against the project's own copy. The main repo commits the same 8 files in docs/ with a SHA-256 manifest, and its conformance suite cites line numbers in them — a drift would break tests. Our mirror is byte-identical, all 8 files; check with python tools/verify-snapshot.py.

Commands mirror

SELECT · INSERT · UPDATE · DELETE · MERGE · DDL · SET · SCRIPT…

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Functions mirror

Scalar, aggregate, and window.

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Data Types mirror

Types, domains, literals, CAST.

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Grammar mirror

Expressions, predicates, railroad diagrams.

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System Tables mirror

INFORMATION_SCHEMA, system views.

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Cheat Sheet mirror

H2's one-page summary — a link list rather than a specification, so no conformance test cites it.

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