Entities
Groups of SQL Domains are Entities
An SQLa entity is a concrete instance of a group of domain instances such as attributes or properties. An entity is usally a table in SQL but might also be represented as a view or a stored function.
Entities
- Table in
render/ddl/table/mod.ts
- Enum Table in
pattern/enum-table.ts
(text key, numeric values, automatic seeds) - Enum Table in
pattern/enum-table.ts
(type-safe text key, text values, automatic seeds) - Data Vault 2.0 Tables in
pattern/data-vault.ts
(build on Immutable Table patterns) - Immutable Table (see Data-Oriented Programming patterns)
- Association Table (
M:M
relationship between two entities) - Unified Star Schema (USS) “presentation layer” measures, bridges, etc.
Entities (Table) Capabilities
- identity
- columns (“attributes”) declared as domains
- primary key(s)
- foreign key references (outbound)
- columns referenced as foreign keys (inbound, aggregations, to define 1:M, 1:1, M:1 “links”)
- Zanzibar (Permify style) ACLs definition in entities and enforcement in SQL
- table labels/tags for grouping of tables like domain labels group columns
- rollup sensitive-labeled columns and auto-label tables as sensitive
- rollup identity-labeled (PII, PHI) columns and auto-label tables as PII/PHI
- JSON Schema (from Zod)
- Invisible XML schema
- CSV Schema, examples