Send the following on WhatsApp
Continue to ChatRecords, Attributes, Keys, Integrity constraints, Schema Architecture, Data independence https://indiafreenotes.com/records-attributes-keys-integrity-constraints-schema-architecture-data-independence/
Records, Attributes, Keys, Integrity constraints, Schema Architecture, Data independence https://indiafreenotes.com/records-attributes-keys-integrity-constraints-schema-architecture-data-independence/