Database schema:
CREATE TABLE Services (
  Service_ID NUMBER PRIMARY KEY,
  Service_Details TEXT
);
CREATE TABLE Customers (
  Customer_ID NUMBER PRIMARY KEY,
  Customer_Details TEXT
);
CREATE TABLE Channels (
  Channel_ID NUMBER PRIMARY KEY,
  Channel_Details TEXT
);
CREATE TABLE Customers_and_Services (
  Customers_and_Services_ID NUMBER PRIMARY KEY,
  Customer_ID NUMBER,
  Service_ID NUMBER,
  Customers_and_Services_Details TEXT,
  FOREIGN KEY (Customer_ID) REFERENCES Customers(Customer_ID),
  FOREIGN KEY (Service_ID) REFERENCES Services(Service_ID)
);
CREATE TABLE Customer_Interactions (
  Customer_Interaction_ID NUMBER PRIMARY KEY,
  Channel_ID NUMBER,
  Customer_ID NUMBER,
  Service_ID NUMBER,
  Status_Code TEXT,
  Services_and_Channels_Details TEXT,
  FOREIGN KEY (Customer_ID) REFERENCES Customers(Customer_ID),
  FOREIGN KEY (Channel_ID) REFERENCES Channels(Channel_ID),
  FOREIGN KEY (Service_ID) REFERENCES Services(Service_ID)
);
CREATE TABLE Integration_Platform (
  Integration_Platform_ID NUMBER PRIMARY KEY,
  Customer_Interaction_ID NUMBER,
  Integration_Platform_Details TEXT,
  FOREIGN KEY (Customer_Interaction_ID) REFERENCES Customer_Interactions(Customer_Interaction_ID)
);
CREATE TABLE Analytical_Layer (
  Analytical_ID NUMBER PRIMARY KEY,
  Customers_and_Services_ID TEXT,
  Pattern_Recognition TEXT,
  Analytical_Layer_Type_Code TEXT,
  FOREIGN KEY (Customers_and_Services_ID) REFERENCES Customers_and_Services(Customers_and_Services_ID)
);

Question: Find the name of the customer who has used the most types of services .
SQL: select t1.customer_details from customers as t1 join customers_and_services as t2 on t1.customer_id  =  t2.customer_id group by t1.customer_details order by count(*) desc limit 1

Question: What are the details of the customers who have "Kutch" in part of their details?
SQL: SELECT customer_details FROM customers WHERE customer_details LIKE "%Kutch%"

Question: Find the details of the customer who has never used any services .
SQL: select customer_details from customers where customer_id not in (select customer_id from customers_and_services)

Question: Count the total number of available customers and services details.
SQL: SELECT count(DISTINCT customers_and_services_details) FROM customers_and_services

Question: Find all the services that has been used by the customer with details "Hardy Kutch".
SQL: SELECT t3.service_details FROM customers AS t1 JOIN customers_and_services AS t2 ON t1.customer_id  =  t2.customer_id JOIN services AS t3 ON t2.service_id  =  t3.service_id WHERE t1.customer_details  =  "Hardy Kutch"

Question: List the details of all the customers who are associated with a failed integration platform .
SQL: select distinct t1.customer_details from customers as t1 join customer_interactions as t2 on t1.customer_id  =  t2.customer_id join integration_platform as t3 where t3.integration_platform_details  =  "fail"

Question: Find the analytical layer type code that appears most often.
SQL: SELECT analytical_layer_type_code FROM analytical_layer GROUP BY analytical_layer_type_code ORDER BY count(*) DESC LIMIT 1

Question: Which services are both used by the customer "Hardy Kutch" and are rated as "bad" in a customer interaction? Give me the service details.
SQL: SELECT DISTINCT t3.service_details FROM customers AS t1 JOIN customers_and_services AS t2 ON t1.customer_id  =  t2.customer_id JOIN services AS t3 ON t2.service_id  =  t3.service_id JOIN customer_interactions AS t4 ON t3.service_id  =  t4.service_id WHERE t1.customer_details  =  "Hardy Kutch" AND t4.services_and_channels_details  =  "bad"

Question: Find the details of the customer who has used services the most times.
SQL: SELECT t1.customer_details FROM customers AS t1 JOIN customers_and_services AS t2 ON t1.customer_id  =  t2.customer_id GROUP BY t1.customer_details ORDER BY count(*) DESC LIMIT 1

Question: Find details of all the services that have been marked as `` unsatisfied '' in customers and services details .
SQL: select distinct t1.service_details from services as t1 join customers_and_services as t2 on t1.service_id  =  t2.service_id where t2.customers_and_services_details  =  "unsatisfied"

Question: Count the number of services.
SQL: SELECT count(*) FROM services

Question: Which services were used by the customer with details "Hardy Kutch"? Give me the service details.
SQL: SELECT t3.service_details FROM customers AS t1 JOIN customers_and_services AS t2 ON t1.customer_id  =  t2.customer_id JOIN services AS t3 ON t2.service_id  =  t3.service_id WHERE t1.customer_details  =  "Hardy Kutch"