diff --git a/frappe/patches/v14_0/save_ratings_in_fraction.py b/frappe/patches/v14_0/save_ratings_in_fraction.py
index bdc5dfee3d..15a8c9ddf1 100644
--- a/frappe/patches/v14_0/save_ratings_in_fraction.py
+++ b/frappe/patches/v14_0/save_ratings_in_fraction.py
@@ -1,12 +1,44 @@
 import frappe
+from frappe.query_builder import DocType
+
 
 def execute():
-	rating_fields = frappe.get_all("DocField", fields=["parent", "fieldname"], filters={"fieldtype": "Rating"})
+	rating_fields = frappe.get_all(
+		"DocField", fields=["parent", "fieldname"], filters={"fieldtype": "Rating"}
+	)
 
-	custom_rating_fields = frappe.get_all("Custom Field", fields=["dt", "fieldname"], filters={"fieldtype": "Rating"})
+	custom_rating_fields = frappe.get_all(
+		"Custom Field", fields=["dt", "fieldname"], filters={"fieldtype": "Rating"}
+	)
 
-	for field in rating_fields + custom_rating_fields:
-		doctype_name = field.get("parent") or field.get("dt")
-		doctype = frappe.qb.DocType(doctype_name)
-		field = field.fieldname
-		(frappe.qb.update(doctype_name).set(doctype[field], doctype[field]/5)).run()
+	for _field in rating_fields + custom_rating_fields:
+		doctype_name = _field.get("parent") or _field.get("dt")
+		doctype = DocType(doctype_name)
+		field = _field.fieldname
+
+		# update NULL values to 0 to avoid data truncated error (temp)
+		# commit for upcoming DLL
+		frappe.qb.update(doctype).set(
+			doctype[field], 0
+		).where(
+			doctype[field].isnull()
+		).run()
+		frappe.db.commit()
+
+		# alter column types for rating fieldtype
+		frappe.db.change_column_type(doctype_name, column=field, type="decimal(3,2)")
+
+		# update data: int => decimal
+		frappe.qb.update(doctype).set(
+			doctype[field], doctype[field] / 5
+		).run()
+
+		# revert 0 to NULL conversion
+		frappe.qb.update(doctype).set(
+			doctype[field], None
+		).where(
+			doctype[field] == 0
+		).run()
+
+		# commit to flush updated rows
+		frappe.db.commit()