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diff --git a/extras/v53_v54_conversion/README.txt b/extras/v53_v54_conversion/README.txt
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+
+README
+------
+
+v5.3 to v5.4 CDM conversion
+
+NOTES
+-----
+
+The *_v53_to_v54_migration.sql scripts are SQL scripts that migrate a v5.3 CDM to a v5.4 CDM.
+The changes implemented are found here: http://ohdsi.github.io/CommonDataModel/cdm54Changes.html.
+Please replace @cdmDatabaseSchema with your schema name.
+Links to database documentation are included in each script to facilitate debugging.
diff --git a/extras/v53_v54_conversion/bigquery_migration.sql b/extras/v53_v54_conversion/bigquery_migration.sql
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+-- http://ohdsi.github.io/CommonDataModel/cdm54Changes.html
+-- BigQuery SQL references: 
+--	https://cloud.google.com/bigquery/docs/reference/standard-sql/data-definition-language#creating_a_new_table_from_an_existing_table
+--	https://cloud.google.com/bigquery/docs/manually-changing-schemas
+--	https://cloud.google.com/bigquery/docs/reference/standard-sql/data-definition-language#alter_column_set_data_type_statement
+--	https://cloud.google.com/bigquery/docs/managing-tables#renaming-table
+--
+
+-- VISIT_OCCURRENCE
+-- admitting_source_concept_id -> admitted_from_concept_id
+-- admitting_source_value -> admitted_from_source_value
+-- discharge_to_concept_id -> discharged_to_concept_id
+-- discharge_to_source_value -> discharged_to_source_value
+
+alter table @cdmDatabaseSchema.visit_occurrence rename to visit_occurrence_old;
+create table @cdmDatabaseSchema.visit_occurrence
+as
+select * EXCEPT(admitting_source_concept_id,admitting_source_value,discharge_to_concept_id,discharge_to_source_value),
+ admitting_source_concept_id as admitted_from_concept_id,
+ admitting_source_value as admitted_from_source_value,
+ discharge_to_concept_id as discharged_to_concept_id,
+ discharge_to_source_value as discharged_to_source_value
+from visit_occurrence_old; 
+
+--
+-- VISIT_DETAIL
+-- admitting_source_concept_id -> admitted_from_concept_id
+-- admitting_source_value -> admitted_from_source_value
+-- discharge_to_concept_id -> discharged_to_concept_id
+-- discharge_to_source_value -> discharged_to_source_value
+-- visit_detail_parent_id -> parent_visit_detail_id
+
+alter table @cdmDatabaseSchema.visit_detail rename to visit_detail_old;
+create table @cdmDatabaseSchema.visit_occurrence
+as
+select * EXCEPT(admitting_source_concept_id,admitting_source_value,discharge_to_concept_id,discharge_to_source_value,visit_detail_parent_id),
+ admitting_source_concept_id as admitted_from_concept_id,
+ admitting_source_value as admitted_from_source_value,
+ discharge_to_concept_id as discharged_to_concept_id,
+ discharge_to_source_value as discharged_to_source_value,
+ visit_detail_parent_id as parent_visit_detail_id
+from visit_detail_old; 
+
+-- PROCEDURE_OCCURRENCE
+-- + Procedure_end_date
+-- + Procedure_end_datetime
+
+alter table @cdmDatabaseSchema.procedure_occurrence add column procedure_end_date date;
+alter table @cdmDatabaseSchema.procedure_occurrence add column procedure_end_datetime datetime;
+
+-- DEVICE_EXPOSURE
+-- Unique_device_id -> Changed to varchar(255) (already a STRING on bigquery)
+-- + Production_id
+-- + Unit_concept_id
+-- + Unit_source_value
+-- + Unit_source_concept_id
+
+alter table @cdmDatabaseSchema.device_exposure add column production_id int64;
+alter table @cdmDatabaseSchema.device_exposure add column unit_concept_id int64;
+alter table @cdmDatabaseSchema.device_exposure add column unit_source_value string;
+alter table @cdmDatabaseSchema.device_exposure add column unit_source_concept_id int64;
+
+-- MEASUREMENT
+-- + Unit_source_concept_id
+-- + Measurement_event_id
+-- + Meas_event_field_concept_id
+
+alter table @cdmDatabaseSchema.measurement add column unit_source_concept_id int64;
+alter table @cdmDatabaseSchema.measurement add column measurement_event_id int64;
+alter table @cdmDatabaseSchema.measurement add column meas_event_field_concept_id int64;
+
+-- OBSERVATION
+-- + Value_source_value
+-- + Observation_event_id
+-- + Obs_event_field_concept_id
+
+alter table @cdmDatabaseSchema.observation add column value_source_value string;
+alter table @cdmDatabaseSchema.observation add column observation_event_id int64;
+alter table @cdmDatabaseSchema.observation add column obs_event_field_concept_id int64;
+
+-- NOTE
+-- + Note_event_id
+-- + Note_event_field_concept_id
+
+alter table @cdmDatabaseSchema.note add column note_event_id int64;
+alter table @cdmDatabaseSchema.note add column note_event_field_concept_id int64;
+
+-- LOCATION
+-- + Country_concept_id
+-- + Country_source_value
+-- + Latitude
+-- + Longitude
+
+alter table @cdmDatabaseSchema.location add column country_concept_id int64;
+alter table @cdmDatabaseSchema.location add column country_source_value string;
+alter table @cdmDatabaseSchema.location add column latitude float64;
+alter table @cdmDatabaseSchema.location add column longitude float64;
+
+-- EPISODE
+create table @cdmDatabaseSchema.episode (
+			episode_id INT64 not null,
+			person_id INT64 not null,
+			episode_concept_id INT64 not null,
+			episode_start_date date not null,
+			episode_start_datetime datetime null,
+			episode_end_date date null,
+			episode_end_datetime datetime null,
+			episode_parent_id INT64,
+			episode_number INT64,
+			episode_object_concept_id INT64 not null,
+			episode_type_concept_id INT64 not null,
+			episode_source_value STRING,
+			episode_source_concept_id INT64 );
+
+-- EPISODE_EVENT
+CREATE TABLE @cdmDatabaseSchema.EPISODE_EVENT  (
+            episode_id int64 NOT NULL,
+			event_id int64 NOT NULL,
+			episode_event_field_concept_id int64 NOT NULL );
+
+
+-- METADATA
+-- + Metadata_id
+-- + Value_as_number
+
+alter table @cdmDatabaseSchema.metadata add column metadata_id int64;
+alter table @cdmDatabaseSchema.metadata add column value_as_number float64;
+
+-- CDM_SOURCE
+-- Cdm_source_name -> Mandatory field
+-- Cdm_source_abbreviation -> Mandatory field
+-- Cdm_holder -> Mandatory field
+-- Source_release_date -> Mandatory field
+-- Cdm_release_date -> Mandatory field
+-- + Cdm_version_concept_id
+
+alter table @cdmDatabaseSchema.cdm_source rename to cdm_source_v53;
+
+CREATE TABLE @cdmDatabaseSchema.cdm_source  (
+            cdm_source_name string NOT NULL,
+			cdm_source_abbreviation string NOT NULL,
+			cdm_holder string NOT NULL,
+			source_description string NULL,
+			source_documentation_reference string NULL,
+			cdm_etl_reference string NULL,
+			source_release_date datetime NOT NULL,
+			cdm_release_date datetime NOT NULL,
+			cdm_version string NULL,
+			cdm_version_concept_id int64 NOT NULL,
+			vocabulary_version string NOT NULL );
+
+insert into @cdmDatabaseSchema.cdm_source 
+select cdm_source_name,cdm_source_abbreviation,cdm_holder,
+            source_description,source_documentation_reference,cdm_etl_reference,
+			source_release_date,cdm_release_date,'5.4',
+            756265,vocabulary_version
+from @cdmDatabaseSchema.cdm_source_v53;
+
+
+-- VOCABULARY
+-- Vocabulary_reference -> Non-mandatory field
+-- Vocabulary_version -> Non-mandatory field
+alter table @cdmDatabaseSchema.vocabulary rename to vocabulary_v53;
+
+CREATE TABLE @cdmDatabaseSchema.vocabulary  (
+            vocabulary_id string NOT NULL,
+			vocabulary_name string NOT NULL,
+			vocabulary_reference string NULL,
+			vocabulary_version string NULL,
+			vocabulary_concept_id int64 NOT NULL );
+
+insert into @cdmDatabaseSchema.vocabulary 
+select vocabulary_id,vocabulary_name,vocabulary_reference,
+       vocabulary_version, vocabulary_concept_id
+from @cdmDatabaseSchema.vocabulary_v53;
+
+
+-- ATTRIBUTE_DEFINITION
+drop table @cdmDatabaseSchema.attribute_definition;
+
+-- COHORT
+CREATE TABLE @cdmDatabaseSchema.cohort  (
+            cohort_definition_id int64 NOT NULL,
+			subject_id int64 NOT NULL,
+			cohort_start_date datetime NOT NULL,
+			cohort_end_date datetime NOT NULL );
+
+
diff --git a/extras/v53_v54_conversion/impala_migration.sql b/extras/v53_v54_conversion/impala_migration.sql
@@ -0,0 +1,176 @@
+-- http://ohdsi.github.io/CommonDataModel/cdm54Changes.html
+-- Impala SQL references: 
+--	https://docs.cloudera.com/documentation/enterprise/6/6.3/topics/impala_alter_table.html
+--
+-- VISIT_OCCURRENCE
+-- admitting_source_concept_id -> admitted_from_concept_id
+-- admitting_source_value -> admitted_from_source_value
+-- discharge_to_concept_id -> discharged_to_concept_id
+-- discharge_to_source_value -> discharged_to_source_value
+
+alter table @cdmDatabaseSchema.visit_occurrence change admitting_source_concept_id admitted_from_concept_id int;
+alter table @cdmDatabaseSchema.visit_occurrence change admitting_source_value admitted_from_source_value int;
+alter table @cdmDatabaseSchema.visit_occurrence change discharge_to_concept_id discharged_to_concept_id int;
+alter table @cdmDatabaseSchema.visit_occurrence change discharge_to_source_value discharged_to_source_value int;
+
+--
+-- VISIT_DETAIL
+-- admitting_source_concept_id -> admitted_from_concept_id
+-- admitting_source_value -> admitted_from_source_value
+-- discharge_to_concept_id -> discharged_to_concept_id
+-- discharge_to_source_value -> discharged_to_source_value
+-- visit_detail_parent_id -> parent_visit_detail_id
+
+alter table @cdmDatabaseSchema.visit_detail change admitting_source_concept_id admitted_from_concept_id int;
+alter table @cdmDatabaseSchema.visit_detail change admitting_source_value admitted_from_source_value int;
+alter table @cdmDatabaseSchema.visit_detail change discharge_to_concept_id discharged_to_concept_id int;
+alter table @cdmDatabaseSchema.visit_detail change discharge_to_source_value discharged_to_source_value int;
+alter table @cdmDatabaseSchema.visit_detail change visit_detail_parent_id parent_visit_detail_id int;
+
+-- PROCEDURE_OCCURRENCE
+-- + Procedure_end_date
+-- + Procedure_end_datetime
+
+alter table @cdmDatabaseSchema.procedure_occurrence add columns (procedure_end_date timestamp);
+alter table @cdmDatabaseSchema.procedure_occurrence add columns (procedure_end_datetime timestamp);
+
+-- DEVICE_EXPOSURE
+-- Unique_device_id -> Changed to varchar(255)
+-- + Production_id
+-- + Unit_concept_id
+-- + Unit_source_value
+-- + Unit_source_concept_id
+
+alter table @cdmDatabaseSchema.device_exposure change unique_device_id unique_device_id varchar(300);
+alter table @cdmDatabaseSchema.device_exposure add columns (production_id int);
+alter table @cdmDatabaseSchema.device_exposure add columns (unit_concept_id int);
+alter table @cdmDatabaseSchema.device_exposure add columns (unit_source_value int);
+alter table @cdmDatabaseSchema.device_exposure add columns (unit_source_concept_id int);
+
+-- MEASUREMENT
+-- + Unit_source_concept_id
+-- + Measurement_event_id
+-- + Meas_event_field_concept_id
+
+alter table @cdmDatabaseSchema.measurement add columns (unit_source_concept_id int);
+alter table @cdmDatabaseSchema.measurement add columns (measurement_event_id int);
+alter table @cdmDatabaseSchema.measurement add columns (meas_event_field_concept_id int);
+
+-- OBSERVATION
+-- + Value_source_value
+-- + Observation_event_id
+-- + Obs_event_field_concept_id
+
+alter table @cdmDatabaseSchema.observation add columns (value_source_value varchar(50));
+alter table @cdmDatabaseSchema.observation add columns (observation_event_id int);
+alter table @cdmDatabaseSchema.observation add columns (obs_event_field_concept_id int);
+
+-- NOTE
+-- + Note_event_id
+-- + Note_event_field_concept_id
+
+alter table @cdmDatabaseSchema.note add columns (note_event_id int);
+alter table @cdmDatabaseSchema.note add columns (note_event_field_concept_id int);
+
+-- LOCATION
+-- + Country_concept_id
+-- + Country_source_value
+-- + Latitude
+-- + Longitude
+
+alter table @cdmDatabaseSchema.location add columns (country_concept_id int);
+alter table @cdmDatabaseSchema.location add columns (country_source_value varchar(80));
+alter table @cdmDatabaseSchema.location add columns (latitude float);
+alter table @cdmDatabaseSchema.location add columns (longitude float);
+
+-- EPISODE
+CREATE TABLE @cdmDatabaseSchema.EPISODE  (
+            episode_id int,
+			person_id int,
+			episode_concept_id int,
+			episode_start_date timestamp,
+			episode_start_datetime TIMESTAMP,
+			episode_end_date timestamp,
+			episode_end_datetime timestamp,
+			episode_parent_id int,
+			episode_number int,
+			episode_object_concept_id int,
+			episode_type_concept_id int,
+			episode_source_value varchar(50),
+			episode_source_concept_id int );
+
+-- EPISODE_EVENT
+CREATE TABLE @cdmDatabaseSchema.EPISODE_EVENT  (
+            episode_id int,
+			event_id int,
+			episode_event_field_concept_id int );
+
+
+-- METADATA
+-- + Metadata_id
+-- + Value_as_number
+
+alter table @cdmDatabaseSchema.metadata add columns (metadata_id int);
+alter table @cdmDatabaseSchema.metadata add columns (value_as_number float);
+
+-- CDM_SOURCE
+-- Cdm_source_name -> Mandatory field
+-- Cdm_source_abbreviation -> Mandatory field
+-- Cdm_holder -> Mandatory field
+-- Source_release_date -> Mandatory field
+-- Cdm_release_date -> Mandatory field
+-- + Cdm_version_concept_id
+
+alter table @cdmDatabaseSchema.cdm_source rename to cdm_source_v53;
+
+CREATE TABLE @cdmDatabaseSchema.cdm_source  (
+            cdm_source_name varchar(255),
+			cdm_source_abbreviation varchar(25),
+			cdm_holder varchar(255),
+			source_description varchar(max),
+			source_documentation_reference varchar(255),
+			cdm_etl_reference varchar(255),
+			source_release_date timestamp,
+			cdm_release_date timestamp,
+			cdm_version varchar(10),
+			cdm_version_concept_id int,
+			vocabulary_version varchar(20));
+
+insert into @cdmDatabaseSchema.cdm_source 
+select cdm_source_name,cdm_source_abbreviation,cdm_holder,
+            source_description,source_documentation_reference,cdm_etl_reference,
+			source_release_date,cdm_release_date,'5.4',
+            756265,vocabulary_version
+from @cdmDatabaseSchema.cdm_source_v53;
+
+
+-- VOCABULARY
+-- Vocabulary_reference -> Non-mandatory field
+-- Vocabulary_version -> Non-mandatory field
+
+alter table @cdmDatabaseSchema.vocabulary rename to vocabulary_v53;
+
+CREATE TABLE @cdmDatabaseSchema.vocabulary  (
+            vocabulary_id varchar(20),
+			vocabulary_name varchar(255),
+			vocabulary_reference varchar(255),
+			vocabulary_version varchar(255),
+			vocabulary_concept_id int );
+
+insert into @cdmDatabaseSchema.vocabulary 
+select vocabulary_id,vocabulary_name,vocabulary_reference,
+       vocabulary_version, vocabulary_concept_id
+from @cdmDatabaseSchema.vocabulary_v53;
+
+
+-- ATTRIBUTE_DEFINITION
+drop table @cdmDatabaseSchema.attribute_definition;
+
+-- COHORT
+CREATE TABLE @cdmDatabaseSchema.cohort  (
+            cohort_definition_id int,
+			subject_id int,
+			cohort_start_date timestamp,
+			cohort_end_date timestamp );
+
+