Data Modeling - Schema

A schema is a metadata that defines the structure of data.

Complex relational schemas are more difficult to scale due to the number of data consistency constraints that introduces extra locks.

See Data Validation (Schema Validation)

schema on read:

• Data - Semi-Structured Data
• Data - Unstructured data - (structure-later|schema-later|schema on read) data

schema on write: Data - (Structured Data|Schema before)

See:

• Data - Semi-Structured Data
• Data - Unstructured data - (structure-later|schema-later|schema on read) data

see:

• Data - Unstructured data - (structure-later|schema-later|schema on read) data
• Data - Semi-Structured Data

see Data - (Structured Data|Schema before)

• Schema diff tool thread