diff --git a/erpnext/manufacturing/doctype/production_plan/production_plan.py b/erpnext/manufacturing/doctype/production_plan/production_plan.py
index 66d458bf75..aa5c50f30f 100644
--- a/erpnext/manufacturing/doctype/production_plan/production_plan.py
+++ b/erpnext/manufacturing/doctype/production_plan/production_plan.py
@@ -8,6 +8,7 @@ import json
 import frappe
 from frappe import _, msgprint
 from frappe.model.document import Document
+from frappe.query_builder.functions import IfNull, Sum
 from frappe.utils import (
 	add_days,
 	ceil,
@@ -20,6 +21,7 @@ from frappe.utils import (
 	nowdate,
 )
 from frappe.utils.csvutils import build_csv_response
+from pypika.terms import ExistsCriterion
 
 from erpnext.manufacturing.doctype.bom.bom import get_children as get_bom_children
 from erpnext.manufacturing.doctype.bom.bom import validate_bom_no
@@ -100,39 +102,46 @@ class ProductionPlan(Document):
 	@frappe.whitelist()
 	def get_pending_material_requests(self):
 		"""Pull Material Requests that are pending based on criteria selected"""
-		mr_filter = item_filter = ""
+
+		bom = frappe.qb.DocType("BOM")
+		mr = frappe.qb.DocType("Material Request")
+		mr_item = frappe.qb.DocType("Material Request Item")
+
+		pending_mr_query = (
+			frappe.qb.from_(mr)
+			.from_(mr_item)
+			.select(mr.name, mr.transaction_date)
+			.distinct()
+			.where(
+				(mr_item.parent == mr.name)
+				& (mr.material_request_type == "Manufacture")
+				& (mr.docstatus == 1)
+				& (mr.status != "Stopped")
+				& (mr.company == self.company)
+				& (mr_item.qty > IfNull(mr_item.ordered_qty, 0))
+				& (
+					ExistsCriterion(
+						frappe.qb.from_(bom)
+						.select(bom.name)
+						.where((bom.item == mr_item.item_code) & (bom.is_active == 1))
+					)
+				)
+			)
+		)
+
 		if self.from_date:
-			mr_filter += " and mr.transaction_date >= %(from_date)s"
+			pending_mr_query = pending_mr_query.where(mr.transaction_date >= self.from_date)
+
 		if self.to_date:
-			mr_filter += " and mr.transaction_date <= %(to_date)s"
+			pending_mr_query = pending_mr_query.where(mr.transaction_date <= self.to_date)
+
 		if self.warehouse:
-			mr_filter += " and mr_item.warehouse = %(warehouse)s"
+			pending_mr_query = pending_mr_query.where(mr_item.warehouse == self.warehouse)
 
 		if self.item_code:
-			item_filter += " and mr_item.item_code = %(item)s"
+			pending_mr_query = pending_mr_query.where(mr_item.item_code == self.item_code)
 
-		pending_mr = frappe.db.sql(
-			"""
-			select distinct mr.name, mr.transaction_date
-			from `tabMaterial Request` mr, `tabMaterial Request Item` mr_item
-			where mr_item.parent = mr.name
-				and mr.material_request_type = "Manufacture"
-				and mr.docstatus = 1 and mr.status != "Stopped" and mr.company = %(company)s
-				and mr_item.qty > ifnull(mr_item.ordered_qty,0) {0} {1}
-				and (exists (select name from `tabBOM` bom where bom.item=mr_item.item_code
-					and bom.is_active = 1))
-			""".format(
-				mr_filter, item_filter
-			),
-			{
-				"from_date": self.from_date,
-				"to_date": self.to_date,
-				"warehouse": self.warehouse,
-				"item": self.item_code,
-				"company": self.company,
-			},
-			as_dict=1,
-		)
+		pending_mr = pending_mr_query.run(as_dict=True)
 
 		self.add_mr_in_table(pending_mr)
 
@@ -160,16 +169,17 @@ class ProductionPlan(Document):
 		so_mr_list = [d.get(field) for d in self.get(table) if d.get(field)]
 		return so_mr_list
 
-	def get_bom_item(self):
+	def get_bom_item_condition(self):
 		"""Check if Item or if its Template has a BOM."""
-		bom_item = None
+		bom_item_condition = None
 		has_bom = frappe.db.exists({"doctype": "BOM", "item": self.item_code, "docstatus": 1})
+
 		if not has_bom:
+			bom = frappe.qb.DocType("BOM")
 			template_item = frappe.db.get_value("Item", self.item_code, ["variant_of"])
-			bom_item = (
-				"bom.item = {0}".format(frappe.db.escape(template_item)) if template_item else bom_item
-			)
-		return bom_item
+			bom_item_condition = bom.item == template_item or None
+
+		return bom_item_condition
 
 	def get_so_items(self):
 		# Check for empty table or empty rows
@@ -178,46 +188,73 @@ class ProductionPlan(Document):
 
 		so_list = self.get_so_mr_list("sales_order", "sales_orders")
 
-		item_condition = ""
-		bom_item = "bom.item = so_item.item_code"
-		if self.item_code and frappe.db.exists("Item", self.item_code):
-			bom_item = self.get_bom_item() or bom_item
-			item_condition = " and so_item.item_code = {0}".format(frappe.db.escape(self.item_code))
+		bom = frappe.qb.DocType("BOM")
+		so_item = frappe.qb.DocType("Sales Order Item")
 
-		items = frappe.db.sql(
-			"""
-			select
-				distinct parent, item_code, warehouse,
-				(qty - work_order_qty) * conversion_factor as pending_qty,
-				description, name
-			from
-				`tabSales Order Item` so_item
-			where
-				parent in (%s) and docstatus = 1 and qty > work_order_qty
-				and exists (select name from `tabBOM` bom where %s
-				and bom.is_active = 1) %s"""
-			% (", ".join(["%s"] * len(so_list)), bom_item, item_condition),
-			tuple(so_list),
-			as_dict=1,
+		items_subquery = frappe.qb.from_(bom).select(bom.name).where(bom.is_active == 1)
+		items_query = (
+			frappe.qb.from_(so_item)
+			.select(
+				so_item.parent,
+				so_item.item_code,
+				so_item.warehouse,
+				((so_item.qty - so_item.work_order_qty) * so_item.conversion_factor).as_("pending_qty"),
+				so_item.description,
+				so_item.name,
+			)
+			.distinct()
+			.where(
+				(so_item.parent.isin(so_list))
+				& (so_item.docstatus == 1)
+				& (so_item.qty > so_item.work_order_qty)
+			)
+		)
+
+		if self.item_code and frappe.db.exists("Item", self.item_code):
+			items_query = items_query.where(so_item.item_code == self.item_code)
+			items_subquery = items_subquery.where(
+				self.get_bom_item_condition() or bom.item == so_item.item_code
+			)
+
+		items_query = items_query.where(ExistsCriterion(items_subquery))
+
+		items = items_query.run(as_dict=True)
+
+		pi = frappe.qb.DocType("Packed Item")
+
+		packed_items_query = (
+			frappe.qb.from_(so_item)
+			.from_(pi)
+			.select(
+				pi.parent,
+				pi.item_code,
+				pi.warehouse.as_("warehouse"),
+				(((so_item.qty - so_item.work_order_qty) * pi.qty) / so_item.qty).as_("pending_qty"),
+				pi.parent_item,
+				pi.description,
+				so_item.name,
+			)
+			.distinct()
+			.where(
+				(so_item.parent == pi.parent)
+				& (so_item.docstatus == 1)
+				& (pi.parent_item == so_item.item_code)
+				& (so_item.parent.isin(so_list))
+				& (so_item.qty > so_item.work_order_qty)
+				& (
+					ExistsCriterion(
+						frappe.qb.from_(bom)
+						.select(bom.name)
+						.where((bom.item == pi.item_code) & (bom.is_active == 1))
+					)
+				)
+			)
 		)
 
 		if self.item_code:
-			item_condition = " and so_item.item_code = {0}".format(frappe.db.escape(self.item_code))
+			packed_items_query = packed_items_query.where(so_item.item_code == self.item_code)
 
-		packed_items = frappe.db.sql(
-			"""select distinct pi.parent, pi.item_code, pi.warehouse as warehouse,
-			(((so_item.qty - so_item.work_order_qty) * pi.qty) / so_item.qty)
-				as pending_qty, pi.parent_item, pi.description, so_item.name
-			from `tabSales Order Item` so_item, `tabPacked Item` pi
-			where so_item.parent = pi.parent and so_item.docstatus = 1
-			and pi.parent_item = so_item.item_code
-			and so_item.parent in (%s) and so_item.qty > so_item.work_order_qty
-			and exists (select name from `tabBOM` bom where bom.item=pi.item_code
-					and bom.is_active = 1) %s"""
-			% (", ".join(["%s"] * len(so_list)), item_condition),
-			tuple(so_list),
-			as_dict=1,
-		)
+		packed_items = packed_items_query.run(as_dict=True)
 
 		self.add_items(items + packed_items)
 		self.calculate_total_planned_qty()
@@ -233,22 +270,39 @@ class ProductionPlan(Document):
 
 		mr_list = self.get_so_mr_list("material_request", "material_requests")
 
-		item_condition = ""
-		if self.item_code:
-			item_condition = " and mr_item.item_code ={0}".format(frappe.db.escape(self.item_code))
+		bom = frappe.qb.DocType("BOM")
+		mr_item = frappe.qb.DocType("Material Request Item")
 
-		items = frappe.db.sql(
-			"""select distinct parent, name, item_code, warehouse, description,
-			(qty - ordered_qty) * conversion_factor as pending_qty
-			from `tabMaterial Request Item` mr_item
-			where parent in (%s) and docstatus = 1 and qty > ordered_qty
-			and exists (select name from `tabBOM` bom where bom.item=mr_item.item_code
-				and bom.is_active = 1) %s"""
-			% (", ".join(["%s"] * len(mr_list)), item_condition),
-			tuple(mr_list),
-			as_dict=1,
+		items_query = (
+			frappe.qb.from_(mr_item)
+			.select(
+				mr_item.parent,
+				mr_item.name,
+				mr_item.item_code,
+				mr_item.warehouse,
+				mr_item.description,
+				((mr_item.qty - mr_item.ordered_qty) * mr_item.conversion_factor).as_("pending_qty"),
+			)
+			.distinct()
+			.where(
+				(mr_item.parent.isin(mr_list))
+				& (mr_item.docstatus == 1)
+				& (mr_item.qty > mr_item.ordered_qty)
+				& (
+					ExistsCriterion(
+						frappe.qb.from_(bom)
+						.select(bom.name)
+						.where((bom.item == mr_item.item_code) & (bom.is_active == 1))
+					)
+				)
+			)
 		)
 
+		if self.item_code:
+			items_query = items_query.where(mr_item.item_code == self.item_code)
+
+		items = items_query.run(as_dict=True)
+
 		self.add_items(items)
 		self.calculate_total_planned_qty()
 
@@ -819,29 +873,45 @@ def download_raw_materials(doc, warehouses=None):
 
 
 def get_exploded_items(item_details, company, bom_no, include_non_stock_items, planned_qty=1):
-	for d in frappe.db.sql(
-		"""select bei.item_code, item.default_bom as bom,
-			ifnull(sum(bei.stock_qty/ifnull(bom.quantity, 1)), 0)*%s as qty, item.item_name,
-			bei.description, bei.stock_uom, item.min_order_qty, bei.source_warehouse,
-			item.default_material_request_type, item.min_order_qty, item_default.default_warehouse,
-			item.purchase_uom, item_uom.conversion_factor, item.safety_stock
-		from
-			`tabBOM Explosion Item` bei
-			JOIN `tabBOM` bom ON bom.name = bei.parent
-			JOIN `tabItem` item ON item.name = bei.item_code
-			LEFT JOIN `tabItem Default` item_default
-				ON item_default.parent = item.name and item_default.company=%s
-			LEFT JOIN `tabUOM Conversion Detail` item_uom
-				ON item.name = item_uom.parent and item_uom.uom = item.purchase_uom
-		where
-			bei.docstatus < 2
-			and bom.name=%s and item.is_stock_item in (1, {0})
-		group by bei.item_code, bei.stock_uom""".format(
-			0 if include_non_stock_items else 1
-		),
-		(planned_qty, company, bom_no),
-		as_dict=1,
-	):
+	bei = frappe.qb.DocType("BOM Explosion Item")
+	bom = frappe.qb.DocType("BOM")
+	item = frappe.qb.DocType("Item")
+	item_default = frappe.qb.DocType("Item Default")
+	item_uom = frappe.qb.DocType("UOM Conversion Detail")
+
+	data = (
+		frappe.qb.from_(bei)
+		.join(bom)
+		.on(bom.name == bei.parent)
+		.join(item)
+		.on(item.name == bei.item_code)
+		.left_join(item_default)
+		.on((item_default.parent == item.name) & (item_default.company == company))
+		.left_join(item_uom)
+		.on((item.name == item_uom.parent) & (item_uom.uom == item.purchase_uom))
+		.select(
+			(IfNull(Sum(bei.stock_qty / IfNull(bom.quantity, 1)), 0) * planned_qty).as_("qty"),
+			item.item_name,
+			bei.description,
+			bei.stock_uom,
+			item.min_order_qty,
+			bei.source_warehouse,
+			item.default_material_request_type,
+			item.min_order_qty,
+			item_default.default_warehouse,
+			item.purchase_uom,
+			item_uom.conversion_factor,
+			item.safety_stock,
+		)
+		.where(
+			(bei.docstatus < 2)
+			& (bom.name == bom_no)
+			& (item.is_stock_item.isin([0, 1]) if include_non_stock_items else item.is_stock_item == 1)
+		)
+		.groupby(bei.item_code, bei.stock_uom)
+	).run(as_dict=True)
+
+	for d in data:
 		if not d.conversion_factor and d.purchase_uom:
 			d.conversion_factor = get_uom_conversion_factor(d.item_code, d.purchase_uom)
 		item_details.setdefault(d.get("item_code"), d)
@@ -866,33 +936,47 @@ def get_subitems(
 	parent_qty,
 	planned_qty=1,
 ):
-	items = frappe.db.sql(
-		"""
-		SELECT
-			bom_item.item_code, default_material_request_type, item.item_name,
-			ifnull(%(parent_qty)s * sum(bom_item.stock_qty/ifnull(bom.quantity, 1)) * %(planned_qty)s, 0) as qty,
-			item.is_sub_contracted_item as is_sub_contracted, bom_item.source_warehouse,
-			item.default_bom as default_bom, bom_item.description as description,
-			bom_item.stock_uom as stock_uom, item.min_order_qty as min_order_qty, item.safety_stock as safety_stock,
-			item_default.default_warehouse, item.purchase_uom, item_uom.conversion_factor
-		FROM
-			`tabBOM Item` bom_item
-			JOIN `tabBOM` bom ON bom.name = bom_item.parent
-			JOIN `tabItem` item ON bom_item.item_code = item.name
-			LEFT JOIN `tabItem Default` item_default
-				ON item.name = item_default.parent and item_default.company = %(company)s
-			LEFT JOIN `tabUOM Conversion Detail` item_uom
-				ON item.name = item_uom.parent and item_uom.uom = item.purchase_uom
-		where
-			bom.name = %(bom)s
-			and bom_item.docstatus < 2
-			and item.is_stock_item in (1, {0})
-		group by bom_item.item_code""".format(
-			0 if include_non_stock_items else 1
-		),
-		{"bom": bom_no, "parent_qty": parent_qty, "planned_qty": planned_qty, "company": company},
-		as_dict=1,
-	)
+	bom_item = frappe.qb.DocType("BOM Item")
+	bom = frappe.qb.DocType("BOM")
+	item = frappe.qb.DocType("Item")
+	item_default = frappe.qb.DocType("Item Default")
+	item_uom = frappe.qb.DocType("UOM Conversion Detail")
+
+	items = (
+		frappe.qb.from_(bom_item)
+		.join(bom)
+		.on(bom.name == bom_item.parent)
+		.join(item)
+		.on(bom_item.item_code == item.name)
+		.left_join(item_default)
+		.on((item.name == item_default.parent) & (item_default.company == company))
+		.left_join(item_uom)
+		.on((item.name == item_uom.parent) & (item_uom.uom == item.purchase_uom))
+		.select(
+			bom_item.item_code,
+			item.default_material_request_type,
+			item.item_name,
+			IfNull(parent_qty * Sum(bom_item.stock_qty / IfNull(bom.quantity, 1)) * planned_qty, 0).as_(
+				"qty"
+			),
+			item.is_sub_contracted_item.as_("is_sub_contracted"),
+			bom_item.source_warehouse,
+			item.default_bom.as_("default_bom"),
+			bom_item.description.as_("description"),
+			bom_item.stock_uom.as_("stock_uom"),
+			item.min_order_qty.as_("min_order_qty"),
+			item.safety_stock.as_("safety_stock"),
+			item_default.default_warehouse,
+			item.purchase_uom,
+			item_uom.conversion_factor,
+		)
+		.where(
+			(bom.name == bom_no)
+			& (bom_item.docstatus < 2)
+			& (item.is_stock_item.isin([0, 1]) if include_non_stock_items else item.is_stock_item == 1)
+		)
+		.groupby(bom_item.item_code)
+	).run(as_dict=True)
 
 	for d in items:
 		if not data.get("include_exploded_items") or not d.default_bom:
@@ -980,48 +1064,69 @@ def get_material_request_items(
 
 
 def get_sales_orders(self):
-	so_filter = item_filter = ""
-	bom_item = "bom.item = so_item.item_code"
+	bom = frappe.qb.DocType("BOM")
+	pi = frappe.qb.DocType("Packed Item")
+	so = frappe.qb.DocType("Sales Order")
+	so_item = frappe.qb.DocType("Sales Order Item")
+
+	open_so_subquery1 = frappe.qb.from_(bom).select(bom.name).where(bom.is_active == 1)
+
+	open_so_subquery2 = (
+		frappe.qb.from_(pi)
+		.select(pi.name)
+		.where(
+			(pi.parent == so.name)
+			& (pi.parent_item == so_item.item_code)
+			& (
+				ExistsCriterion(
+					frappe.qb.from_(bom).select(bom.name).where((bom.item == pi.item_code) & (bom.is_active == 1))
+				)
+			)
+		)
+	)
+
+	open_so_query = (
+		frappe.qb.from_(so)
+		.from_(so_item)
+		.select(so.name, so.transaction_date, so.customer, so.base_grand_total)
+		.distinct()
+		.where(
+			(so_item.parent == so.name)
+			& (so.docstatus == 1)
+			& (so.status.notin(["Stopped", "Closed"]))
+			& (so.company == self.company)
+			& (so_item.qty > so_item.work_order_qty)
+		)
+	)
 
 	date_field_mapper = {
-		"from_date": (">=", "so.transaction_date"),
-		"to_date": ("<=", "so.transaction_date"),
-		"from_delivery_date": (">=", "so_item.delivery_date"),
-		"to_delivery_date": ("<=", "so_item.delivery_date"),
+		"from_date": self.from_date >= so.transaction_date,
+		"to_date": self.to_date <= so.transaction_date,
+		"from_delivery_date": self.from_delivery_date >= so_item.delivery_date,
+		"to_delivery_date": self.to_delivery_date <= so_item.delivery_date,
 	}
 
 	for field, value in date_field_mapper.items():
 		if self.get(field):
-			so_filter += f" and {value[1]} {value[0]} %({field})s"
+			open_so_query = open_so_query.where(value)
 
-	for field in ["customer", "project", "sales_order_status"]:
+	for field in ("customer", "project", "sales_order_status"):
 		if self.get(field):
 			so_field = "status" if field == "sales_order_status" else field
-			so_filter += f" and so.{so_field} = %({field})s"
+			open_so_query = open_so_query.where(so[so_field] == self.get(field))
 
 	if self.item_code and frappe.db.exists("Item", self.item_code):
-		bom_item = self.get_bom_item() or bom_item
-		item_filter += " and so_item.item_code = %(item_code)s"
+		open_so_query = open_so_query.where(so_item.item_code == self.item_code)
+		open_so_subquery1 = open_so_subquery1.where(
+			self.get_bom_item_condition() or bom.item == so_item.item_code
+		)
 
-	open_so = frappe.db.sql(
-		f"""
-		select distinct so.name, so.transaction_date, so.customer, so.base_grand_total
-		from `tabSales Order` so, `tabSales Order Item` so_item
-		where so_item.parent = so.name
-			and so.docstatus = 1 and so.status not in ('Stopped', 'Closed')
-			and so.company = %(company)s
-			and so_item.qty > so_item.work_order_qty {so_filter} {item_filter}
-			and (exists (select name from `tabBOM` bom where {bom_item}
-					and bom.is_active = 1)
-				or exists (select name from `tabPacked Item` pi
-					where pi.parent = so.name and pi.parent_item = so_item.item_code
-						and exists (select name from `tabBOM` bom where bom.item=pi.item_code
-							and bom.is_active = 1)))
-		""",
-		self.as_dict(),
-		as_dict=1,
+	open_so_query = open_so_query.where(
+		(ExistsCriterion(open_so_subquery1) | ExistsCriterion(open_so_subquery2))
 	)
 
+	open_so = open_so_query.run(as_dict=True)
+
 	return open_so
 
 
@@ -1030,37 +1135,34 @@ def get_bin_details(row, company, for_warehouse=None, all_warehouse=False):
 	if isinstance(row, str):
 		row = frappe._dict(json.loads(row))
 
-	company = frappe.db.escape(company)
-	conditions, warehouse = "", ""
+	bin = frappe.qb.DocType("Bin")
+	wh = frappe.qb.DocType("Warehouse")
+
+	subquery = frappe.qb.from_(wh).select(wh.name).where(wh.company == company)
 
-	conditions = " and warehouse in (select name from `tabWarehouse` where company = {0})".format(
-		company
-	)
 	if not all_warehouse:
 		warehouse = for_warehouse or row.get("source_warehouse") or row.get("default_warehouse")
 
 	if warehouse:
 		lft, rgt = frappe.db.get_value("Warehouse", warehouse, ["lft", "rgt"])
-		conditions = """ and warehouse in (select name from `tabWarehouse`
-			where lft >= {0} and rgt <= {1} and name=`tabBin`.warehouse and company = {2})
-		""".format(
-			lft, rgt, company
-		)
+		subquery = subquery.where((wh.lft >= lft) & (wh.rgt <= rgt) & (wh.name == bin.warehouse))
 
-	return frappe.db.sql(
-		""" select ifnull(sum(projected_qty),0) as projected_qty,
-		ifnull(sum(actual_qty),0) as actual_qty, ifnull(sum(ordered_qty),0) as ordered_qty,
-		ifnull(sum(reserved_qty_for_production),0) as reserved_qty_for_production, warehouse,
-		ifnull(sum(planned_qty),0) as planned_qty
-		from `tabBin` where item_code = %(item_code)s {conditions}
-		group by item_code, warehouse
-	""".format(
-			conditions=conditions
-		),
-		{"item_code": row["item_code"]},
-		as_dict=1,
+	query = (
+		frappe.qb.from_(bin)
+		.select(
+			bin.warehouse,
+			IfNull(Sum(bin.projected_qty), 0).as_("projected_qty"),
+			IfNull(Sum(bin.actual_qty), 0).as_("actual_qty"),
+			IfNull(Sum(bin.ordered_qty), 0).as_("ordered_qty"),
+			IfNull(Sum(bin.reserved_qty_for_production), 0).as_("reserved_qty_for_production"),
+			IfNull(Sum(bin.planned_qty), 0).as_("planned_qty"),
+		)
+		.where((bin.item_code == row["item_code"]) & (bin.warehouse.isin(subquery)))
+		.groupby(bin.item_code, bin.warehouse)
 	)
 
+	return query.run(as_dict=True)
+
 
 @frappe.whitelist()
 def get_so_details(sales_order):