diff --git a/2.database/01.CreateTables.sql b/2.database/01.CreateTables.sql
index 41ad5bb..63863ef 100644
--- a/2.database/01.CreateTables.sql
+++ b/2.database/01.CreateTables.sql
@@ -64,6 +64,9 @@ CREATE TABLE myhealth.familydoctor
 )
 TABLESPACE pg_default;
 
+CREATE UNIQUE INDEX family_doctor_professionaln_index
+    ON myhealth.familydoctor (professionalnumber);
+
 ALTER TABLE myhealth.familydoctor
     OWNER to "USER";
 
@@ -193,6 +196,9 @@ CREATE TABLE myhealth.specialistdoctor
 )
 TABLESPACE pg_default;
 
+CREATE UNIQUE INDEX specialistdoctor_professionaln_index
+    ON myhealth.specialistdoctor (professionalnumber);
+
 ALTER TABLE myhealth.specialistdoctor
     OWNER to "USER";