feat: add main menu options and scripts

resources/examples.csv

@@ -14,3 +14,10 @@ CREATE TABLE registration (customer_id number, product_id number);
 CREATE TABLE district (id number, name text, prefix text, province_id number); 
 CREATE TABLE province (id number, name text, code text)
 CREATE TABLE product (id number, category text, name text, description text, price number, duration number, data_amount number, voice_amount number, sms_amount number);", Liệt kê số khách hàng của từng tỉnh
+"CREATE TABLE customer (id number, name text, gender text, age number, district_id number;
+CREATE TABLE registration (customer_id number, product_id number); 
+CREATE TABLE district (id number, name text, prefix text, province_id number); 
+CREATE TABLE province (id number, name text, code text)
+CREATE TABLE product (id number, category text, name text, description text, price number, duration number, data_amount number, voice_amount number, sms_amount number);
+
+product.voice_amount is the call capacity, product.data_amount is the internet data capacity, product.sms_amount is the maximum number of sms messages can be sent", Tìm sản phẩm có dung lượng cuộc gọi lớn nhất