diff --git a/sql/create.sql b/sql/create.sql
index 3b71f3b..00e0614 100644
--- a/sql/create.sql
+++ b/sql/create.sql
@@ -87,7 +87,7 @@ GO
 DROP TABLE IF EXISTS dim_drugs;
 CREATE TABLE dim_drugs (
 	drug_sk INTEGER identity(1, 1) PRIMARY KEY,
-	drug_product_id_bk INTEGER NOT NULL, -- business key
+	drug_product_id_bk NVARCHAR(13) NOT NULL, -- business key
 	record_status CHAR(1), -- A for active, D for deactivated
 	drug_product_name NVARCHAR(250),
 	ro_number NVARCHAR(20),