Schema

Raw Schema

Column Name	Data Type	Description	Example
_ingest_time	timestamp	Timestamp of data ingestion	’2026-04-10 12:00:00’
emis_issue_guid	varchar	Issue identifier	’issue-12345’
exa_issue_guid	varchar	External issue identifier	’ext-issue-67890’
pseudo_registration_guid	varchar	Hashed registration identifier	’reg-98765’
pseudo_patient_id	varchar	Hashed patient identifier	’pat-54321’
emis_medication_organisation_guid	varchar	Medication organisation GUID	’org-11223’
emis_registration_organisation_guid	varchar	Registration organisation GUID	’org-11223’
emis_drug_guid	varchar	Authorisation/drug identifier	’drug-54321’
effective_date	date	Effective date	’2026-01-01’
effective_date_precision	varchar	Precision of effective date	’day’
entered_date	date	Date recorded	’2026-01-02’
entered_time	time	Time recorded	’12:34:56’
emis_authorising_userinrole_guid	varchar	Authorising user-in-role GUID	’auth-45678’
emis_enteredby_userinrole_guid	varchar	Entered-by user-in-role GUID	’auth-56789’
emis_code_id	varchar	Code identifier	’code-67890’
emis_original_term	varchar	Original term	’Medication issue’
dose	varchar	Dose text	’10 mg’
quantity	varchar	Quantity	’1’
uom	varchar	Unit of measure	’tablet’
duration_in_days	int	Duration in days	30
estimated_nhs_cost	double	Estimated NHS cost	12.34
confidential_flag	boolean	Confidentiality flag	false
_execution_date	varchar	Extract execution date	’2026-04-10’
organisation	varchar	Organisation identifier	’CDB-0001’
study_id	varchar	Study identifier from included patients view	’study-12345’