sharkiefff/RBAC-Text2SQL-Benchmark huggingface dataset:
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: What are the names of managers in ascending order of level?
Answer: SELECT Name FROM manager ORDER BY LEVEL ASC
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT Name FROM manager ORDER BY LEVEL ASC
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: What are the names and arrival times of trains?
Answer: SELECT Name ,  Arrival FROM train
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT Name ,  Arrival FROM train
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: What is the name of the oldest manager?
Answer: SELECT Name FROM manager ORDER BY Age DESC LIMIT 1
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT Name FROM manager ORDER BY Age DESC LIMIT 1
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show the names of trains and locations of railways they are in.
Answer: SELECT T2.Name ,  T1.Location FROM railway AS T1 JOIN train AS T2 ON T1.Railway_ID  =  T2.Railway_ID
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT T2.Name ,  T1.Location FROM railway AS T1 JOIN train AS T2 ON T1.Railway_ID  =  T2.Railway_ID
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show the builder of railways associated with the trains named "Andaman Exp".
Answer: SELECT T1.Builder FROM railway AS T1 JOIN train AS T2 ON T1.Railway_ID  =  T2.Railway_ID WHERE T2.Name  =  "Andaman Exp"
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT T1.Builder FROM railway AS T1 JOIN train AS T2 ON T1.Railway_ID  =  T2.Railway_ID WHERE T2.Name  =  "Andaman Exp"
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show id and location of railways that are associated with more than one train.
Answer: SELECT T2.Railway_ID ,  T1.Location FROM railway AS T1 JOIN train AS T2 ON T1.Railway_ID  =  T2.Railway_ID GROUP BY T2.Railway_ID HAVING COUNT(*)  >  1
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT T2.Railway_ID ,  T1.Location FROM railway AS T1 JOIN train AS T2 ON T1.Railway_ID  =  T2.Railway_ID GROUP BY T2.Railway_ID HAVING COUNT(*)  >  1
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show the id and builder of the railway that are associated with the most trains.
Answer: SELECT T2.Railway_ID ,  T1.Builder FROM railway AS T1 JOIN train AS T2 ON T1.Railway_ID  =  T2.Railway_ID GROUP BY T2.Railway_ID ORDER BY COUNT(*) DESC LIMIT 1
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT T2.Railway_ID ,  T1.Builder FROM railway AS T1 JOIN train AS T2 ON T1.Railway_ID  =  T2.Railway_ID GROUP BY T2.Railway_ID ORDER BY COUNT(*) DESC LIMIT 1
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show different builders of railways, along with the corresponding number of railways using each builder.
Answer: SELECT Builder ,  COUNT(*) FROM railway GROUP BY Builder
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT Builder ,  COUNT(*) FROM railway GROUP BY Builder
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show the most common builder of railways.
Answer: SELECT Builder FROM railway GROUP BY Builder ORDER BY COUNT(*) DESC LIMIT 1
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT Builder FROM railway GROUP BY Builder ORDER BY COUNT(*) DESC LIMIT 1
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show different locations of railways along with the corresponding number of railways at each location.
Answer: SELECT LOCATION ,  COUNT(*) FROM railway GROUP BY LOCATION
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT LOCATION ,  COUNT(*) FROM railway GROUP BY LOCATION
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show the locations that have more than one railways.
Answer: SELECT LOCATION FROM railway GROUP BY LOCATION HAVING COUNT(*)  >  1
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT LOCATION FROM railway GROUP BY LOCATION HAVING COUNT(*)  >  1
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: List the object number of railways that do not have any trains.
Answer: SELECT ObjectNumber FROM railway WHERE Railway_ID NOT IN (SELECT Railway_ID FROM train)
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT ObjectNumber FROM railway WHERE Railway_ID NOT IN (SELECT Railway_ID FROM train)
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show the countries that have both managers of age above 50 and managers of age below 46.
Answer: SELECT Country FROM manager WHERE Age  >  50 INTERSECT SELECT Country FROM manager WHERE Age  <  46
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT Country FROM manager WHERE Age  >  50 INTERSECT SELECT Country FROM manager WHERE Age  <  46
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show the distinct countries of managers.
Answer: SELECT DISTINCT Country FROM manager
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT DISTINCT Country FROM manager
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show the working years of managers in descending order of their level.
Answer: SELECT Working_year_starts FROM manager ORDER BY LEVEL DESC
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT Working_year_starts FROM manager ORDER BY LEVEL DESC
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_1
Accessible Columns:
  - manager: * (all columns)
  - railway: Builder, Built, Location, ObjectNumber, Railway_ID, Wheels
  - railway_manage: * (all columns)
  - train: Arrival, From, Name, Railway_ID, Train_Num

Question: Show the countries that have managers of age above 50 or below 46.
Answer: SELECT Country FROM manager WHERE Age  >  50 OR Age  <  46
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT Country FROM manager WHERE Age  >  50 OR Age  <  46
##Instruction:
Database: railway
Total Tables: 4
Total Columns: 22

Table Schemas:

railway contains tables such as railway, train, manager, railway_manage.
Table railway has columns such as Railway_ID, Railway, Builder, Built, Wheels, Location, ObjectNumber.
Railway_ID is the primary key.
Table train has columns such as Train_ID, Train_Num, Name, From, Arrival, Railway_ID.
Train_ID is the primary key.
Table manager has columns such as Manager_ID, Name, Country, Working_year_starts, Age, Level.
Manager_ID is the primary key.
Table railway_manage has columns such as Railway_ID, Manager_ID, From_Year.
Railway_ID is the primary key.
The Railway_ID of train is the foreign key of Railway_ID of railway.
The Railway_ID of railway_manage is the foreign key of Railway_ID of railway.
The Manager_ID of railway_manage is the foreign key of Manager_ID of manager.

##Role Access Policy (Column-Level):
Role: DataOperator_2
Accessible Columns:
  - manager: Age, Country, Level, Manager_ID
  - railway: Builder, Built, Location, ObjectNumber, Railway, Railway_ID
  - railway_manage: From_Year, Manager_ID
  - train: * (all columns)

Question: How many railways are there?
Answer: SELECT count(*) FROM railway
Permission: allowed (All required columns are permitted)
Gold SQL: SELECT count(*) FROM railway