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: For each analytical layer, return the analytical layer type code and the number of times it was used.
SQL: SELECT analytical_layer_type_code ,  count(*) FROM analytical_layer GROUP BY analytical_layer_type_code

Question: Which services have been rated as "unsatisfied" in customers and services details? Give me the service_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: Find all the layer type codes with their corresponding usage count.
SQL: SELECT analytical_layer_type_code ,  count(*) FROM analytical_layer GROUP BY analytical_layer_type_code

Question: Find all the details of the customers who have been involved in an interaction with status `` Stuck '' and service and channel detail `` bad '' .
SQL: select t1.customer_details from customers as t1 join customer_interactions as t2 on t1.customer_id  =  t2.customer_id where t2.status_code  =  "stuck" and services_and_channels_details  =  "bad"

Question: Which services are used by the customer "Hardy Kutch" or are rated as "good" 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" OR t4.services_and_channels_details  =  "good"

Question: Find details of all the services that have interacted with `` 15 ij '' for the the channel details.
SQL: select distinct t1.service_details from services as t1 join customer_interactions as t2 on t1.service_id  =  t2.service_id join channels as t3 on t2.channel_id  =  t3.channel_id where t3.channel_details  =  "15 ij"

Question: How many services are there?
SQL: SELECT count(*) FROM services

Question: What is the list of channel details ordered alphabetically ?
SQL: select channel_details from channels order by channel_details

Question: How many distinct customer and services details are there?
SQL: SELECT count(DISTINCT customers_and_services_details) FROM customers_and_services

Question: Which customer has used the most types of services ? Give me the customer details .
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 all the customers whose name contains "Kutch".
SQL: SELECT customer_details FROM customers WHERE customer_details LIKE "%Kutch%"

Question: Find details of the services that no customer has ever used . Return the service details .
SQL: select service_details from services except select t2.service_details from customers_and_services as t1 join services as t2 on t1.service_id  =  t2.service_id

Question: Count the number of integration platforms that have "Success" in the details.
SQL: SELECT count(*) FROM integration_platform WHERE integration_platform_details  =  "Success"

Question: return the details of the customer with largest count of used 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: Which customers have experienced status "Stuck" and service and channel detail "bad" in  an interaction? Give me the customer details.
SQL: SELECT t1.customer_details FROM customers AS t1 JOIN customer_interactions AS t2 ON t1.customer_id  =  t2.customer_id WHERE t2.status_code  =  "Stuck" AND services_and_channels_details  =  "bad"

Question: How many integration platforms are successful?
SQL: SELECT count(*) FROM integration_platform WHERE integration_platform_details  =  "Success"

Question: Which customers used the least commonly-used service ? Give me the distinct customer details .
SQL: select distinct t1.customer_details from customers as t1 join customers_and_services as t2 on t1.customer_id  =  t2.customer_id where t2.service_id  =  (select service_id from services group by service_id order by count(*) asc limit 1)

Question: List details of all the channel in alphabetical order .
SQL: select channel_details from channels order by channel_details

Question: Give me the details of all the services that have interacted with the channel with detail "15 ij".
SQL: SELECT DISTINCT t1.service_details FROM services AS t1 JOIN customer_interactions AS t2 ON t1.service_id  =  t2.service_id JOIN channels AS t3 ON t2.channel_id  =  t3.channel_id WHERE t3.channel_details  =  "15 ij"

Question: Which services were used by customers by more than 3 times? Give me the service details.
SQL: SELECT t1.service_details FROM services AS t1 JOIN customers_and_services AS t2 ON t1.service_id  =  t2.service_id GROUP BY t1.service_details HAVING count(*)  >  3

Question: Which customers have integration platform details "Fail" in interactions? Give me the customer details.
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: Which service ( s ) has never been used by any customer ? List their details .
SQL: select service_details from services except select t2.service_details from customers_and_services as t1 join services as t2 on t1.service_id  =  t2.service_id

Question: Find the name of all the services which either have been used by customer "Hardy Kutch" or have been rated as "good" in one of the customer interactions.
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" OR t4.services_and_channels_details  =  "good"

Question: Find the details of the services that have been used by more than 3 times .
SQL: select t1.service_details from services as t1 join customers_and_services as t2 on t1.service_id  =  t2.service_id group by t1.service_details having count(*)  >  3