added sql scripts for seeding data, etc.

scripts/QueryObjects.sql

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+-- stored procedures
+SELECT * 
+  FROM BusStationDB.INFORMATION_SCHEMA.ROUTINES
+ WHERE ROUTINE_TYPE = 'PROCEDURE'
+ AND ROUTINE_NAME NOT LIKE 'sp%'
+-- functions
+ SELECT * 
+  FROM BusStationDB.INFORMATION_SCHEMA.ROUTINES
+ WHERE ROUTINE_TYPE = 'FUNCTION'
+  AND ROUTINE_NAME NOT LIKE 'fn%'
+
+-- triggers
+SELECT 
+     sysobjects.name AS trigger_name 
+    ,USER_NAME(sysobjects.uid) AS trigger_owner 
+    ,s.name AS table_schema 
+    ,OBJECT_NAME(parent_obj) AS table_name 
+    ,OBJECTPROPERTY( id, 'ExecIsUpdateTrigger') AS isupdate 
+    ,OBJECTPROPERTY( id, 'ExecIsDeleteTrigger') AS isdelete 
+    ,OBJECTPROPERTY( id, 'ExecIsInsertTrigger') AS isinsert 
+    ,OBJECTPROPERTY( id, 'ExecIsAfterTrigger') AS isafter 
+    ,OBJECTPROPERTY( id, 'ExecIsInsteadOfTrigger') AS isinsteadof 
+    ,OBJECTPROPERTY(id, 'ExecIsTriggerDisabled') AS [disabled] 
+FROM sysobjects 
+
+INNER JOIN sysusers 
+    ON sysobjects.uid = sysusers.uid 
+
+INNER JOIN sys.tables t 
+    ON sysobjects.parent_obj = t.object_id 
+
+INNER JOIN sys.schemas s 
+    ON t.schema_id = s.schema_id 
+
+WHERE sysobjects.type = 'TR'
+
+
+-- indexes
+SELECT '[' + s.NAME + '].[' + so.NAME + ']' AS 'table_name'
+    ,+ i.NAME AS 'index_name'
+    ,CASE 
+        WHEN i.is_disabled = 1
+            THEN '<disabled> ' 
+        ELSE '' 
+        END + LOWER(i.type_desc) + CASE 
+            WHEN i.is_unique = 1
+                THEN ', unique' + CASE
+                    WHEN i.is_unique_constraint = 1
+                        THEN ' (constraint)'
+                    ELSE '' END
+            ELSE ''
+            END + CASE 
+            WHEN i.is_primary_key = 1
+                THEN ', primary key'
+            ELSE ''
+        END AS 'index_description'
+    ,STUFF((
+            SELECT ', [' + sc.name + ']' AS "text()"
+            FROM sys.columns AS sc
+            INNER JOIN sys.index_columns AS ic ON ic.object_id = sc.object_id
+                AND ic.column_id = sc.column_id
+            WHERE sc.object_id = so.object_id
+                AND ic.index_id = i.index_id
+                AND ic.is_included_column = 0
+            ORDER BY key_ordinal
+            FOR XML PATH('')
+            ), 1, 2, '') AS 'indexed_columns'
+    ,STUFF((
+            SELECT ', [' + sc.name + ']' AS "text()"
+            FROM sys.columns AS sc
+            INNER JOIN sys.index_columns AS ic ON ic.object_id = sc.object_id AND ic.column_id = sc.column_id
+            WHERE sc.object_id = so.object_id
+                AND ic.index_id = i.index_id
+                AND ic.is_included_column = 1
+            FOR XML PATH('')
+            ), 1, 2, '') AS 'included_columns'
+FROM sys.indexes AS i
+INNER JOIN sys.objects AS so ON so.object_id = i.object_id 
+    AND so.is_ms_shipped = 0 -- Exclude objects created by internal component
+INNER JOIN sys.schemas AS s ON s.schema_id = so.schema_id
+WHERE so.type = 'U'
+    AND i.auto_created = 0 -- Don't show auto-created IXs
+    --AND i.is_unique_constraint = 0 -- Enable to exclude UQ constaint IXs
+    AND i.type <> 0 -- Exclude heaps
+    AND so.NAME <> 'sysdiagrams'
+	AND so.NAME <> '__EFMigrationsHistory'
+ORDER BY 'table_name',
+    'index_name';

scripts/Statistic.sql

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+select top 10 c.Name as CompanyName, SUM(tk.Price) as TotalRevenue from
+Companies As c
+join Drivers as d on c.CompanyId = d.CompanyId
+join Buses AS b on b.DriverId = d.DriverId
+join BusScheduleEntries as bse on b.BusId = bse.BusId
+join Trips as t on t.BusScheduleEntryId = bse.BusScheduleEntryId
+join TicketPayments as tp on t.TripId = tp.TripId
+join Tickets as tk on tp.TicketId = tk.TicketId
+group by c.Name
+order by TotalRevenue desc
+
+
+select top 10
+	r.RouteId,
+	(r.Origin + ' - ' + r.Destination) RouteName,
+	ROUND(AVG(b.Rating), 2) as AvgBusRating
+from Routes as r
+join BusScheduleEntries as bse on r.RouteId = bse.RouteId
+join BusDetailsView as b on b.BusId = bse.BusId
+where Rating > 0.0
+group by r.RouteId, r.Origin, r.Destination
+order by AvgBusRating desc
+
+
+select top 10
+r.RouteId,
+(r.Origin + ' - ' + r.Destination) RouteName,
+ SUM(tk.Price) as TotalRevenue
+from Routes as r
+join BusScheduleEntries as bse on r.RouteId = bse.RouteId
+join Trips as t on t.BusScheduleEntryId = bse.BusScheduleEntryId
+join TicketPayments as tp on t.TripId = tp.TripId
+join Tickets as tk on tp.TicketId = tk.TicketId
+group by r.RouteId, r.Origin, r.Destination
+order by TotalRevenue desc
+
+-- the most crossed distance among buses
+select b.Number, SUM(r.OverallDistance) as DistanceTravelled 
+from Buses as b
+join BusScheduleEntries as bse on b.BusId = bse.BusId
+join Routes as r on r.RouteId = bse.RouteId
+join Trips as t on t.BusScheduleEntryId = bse.BusScheduleEntryId
+where t.Status != 'Canceled'
+group by b.BusId
+order by DistanceTravelled desc
+
+
+WITH RankedDistances AS (
+    SELECT 
+        b.BusId, 
+        r.OverallDistance AS DistanceTravelled,
+        ROW_NUMBER() OVER (PARTITION BY r.OverallDistance ORDER BY b.BusId) AS RowNumber
+    FROM 
+        Buses AS b
+    JOIN 
+        BusScheduleEntries AS bse ON b.BusId = bse.BusId
+    JOIN 
+        Routes AS r ON r.RouteId = bse.RouteId
+    JOIN 
+        Trips AS t ON t.BusScheduleEntryId = bse.BusScheduleEntryId
+    WHERE 
+        t.Status != 'Canceled'
+)
+SELECT 
+    BusId, 
+    DistanceTravelled
+FROM 
+    RankedDistances
+WHERE 
+    RowNumber = 1
+ORDER BY 
+    DistanceTravelled DESC;
+
+--var rankedDistances = from b in dbContext.Buses
+--                      join bse in dbContext.BusScheduleEntries on b.BusId equals bse.BusId
+--                      join r in dbContext.Routes on bse.RouteId equals r.RouteId
+--                      join t in dbContext.Trips on bse.BusScheduleEntryId equals t.BusScheduleEntryId
+--                      where t.Status != "Canceled"
+--                      orderby r.OverallDistance descending, b.BusId
+--                      select new 
+--                      {
+--                          b.BusId,
+--                          DistanceTravelled = r.OverallDistance
+--                      };
+
+--var firstDistances = rankedDistances.GroupBy(rd => rd.DistanceTravelled)
+--                                     .Select(g => g.First());
+
+--var query = from fd in firstDistances
+--            orderby fd.DistanceTravelled descending
+--            select fd;

scripts/authSP.sql

@@ -0,0 +1,120 @@
+
+
+CREATE PROCEDURE AllowSwitchContextForOtherUsers
+(@Username NVARCHAR(50))
+AS
+BEGIN
+	-- temporary table
+	CREATE TABLE #TempUsers
+	(PrincipalName NVARCHAR(100),RoleName NVARCHAR(100));
+
+	-- cte
+	WITH PrincipalsWithRoles AS (SELECT *
+				FROM (SELECT P.name AS PrincipalName,R.role_principal_id AS GH
+					FROM SYS.database_principals P,sys.database_role_members R
+					WHERE P.principal_id=R.member_principal_id OR P.principal_id=R.role_principal_id
+					AND type<>'R') S INNER JOIN (SELECT P.name AS RoleName,P.principal_id AS GHA
+													FROM SYS.database_principals P,sys.database_role_members R
+													WHERE P.principal_id=R.member_principal_id OR P.principal_id=R.role_principal_id
+													AND type='R') D
+					ON D.GHA=S.GH AND PrincipalName != 'dbo' AND PrincipalName != @Username)
+
+	INSERT INTO #TempUsers
+	SELECT DISTINCT PrincipalName,RoleName
+	FROM PrincipalsWithRoles
+
+	DECLARE @CurrentUser NVARCHAR(100), @QueryText NVARCHAR(MAX)=''
+	DECLARE UserCursor CURSOR FOR SELECT PrincipalName FROM #TempUsers
+	OPEN UserCursor
+	FETCH NEXT FROM UserCursor INTO @CurrentUser
+	WHILE(@@FETCH_STATUS = 0)
+		BEGIN
+			SET @QueryText += 'GRANT IMPERSONATE ON USER::[' + @CurrentUser + '] TO ' + @Username + '; '
+			FETCH NEXT FROM UserCursor INTO @CurrentUser
+		END
+	CLOSE UserCursor
+	DEALLOCATE UserCursor
+
+	DROP TABLE #TempUsers
+	EXEC(@QueryText)
+END
+
+
+CREATE PROCEDURE CreateUserWithRole
+( @Username NVARCHAR(50),
+  @Password NVARCHAR(50),
+  @RoleName INT)
+AS
+BEGIN
+	DECLARE @LoginName NVARCHAR(50) = @Username + 'Login';
+	DECLARE @LoginCommand NVARCHAR(100) = 'CREATE LOGIN '+ @LoginName + ' WITH PASSWORD = '''+ @Password +'''';
+	EXEC(@LoginCommand)
+
+	DECLARE @UserCommand NVARCHAR(100) = 'CREATE USER ' + @Username + ' FOR LOGIN ' + @LoginName;
+	EXEC(@UserCommand)
+
+	IF @RoleName = 100 -- admin
+	BEGIN
+		EXEC sp_addrolemember 'db_owner', @Username
+	END
+	IF @RoleName = 200
+	BEGIN
+		EXEC sp_addrolemember 'Passenger', @Username
+	END
+	IF @RoleName = 300
+	BEGIN
+		EXEC sp_addrolemember 'Driver', @Username
+	END
+
+	EXEC AllowSwitchContextForOtherUsers @Username;
+END
+GO
+
+DROP PROCEDURE IF EXISTS AllowSwitchContextForOtherUsers;
+DROP PROCEDURE IF EXISTS SeedPermissionsForRoles;
+DROP PROCEDURE IF EXISTS CreateUserWithRole;
+EXEC SeedPermissionsForRoles;
+
+EXEC CreateUserWithRole 'Pedro', 'pedro1234', 200
+
+EXEC AllowSwitchContextForOtherUsers 'AndriiAdmin'
+CREATE PROCEDURE SeedPermissionsForRoles
+AS
+BEGIN
+	CREATE ROLE Passenger;
+	GRANT SELECT ON Buses TO Passenger;
+	GRANT SELECT ON Routes TO Passenger;
+	GRANT SELECT ON Stops TO Passenger;
+	GRANT SELECT ON Trips TO Passenger;
+	GRANT SELECT ON TripStatuses TO Passenger;
+	GRANT SELECT ON BusDetailsView TO Passenger;
+	GRANT SELECT, INSERT, UPDATE, DELETE ON BusReviews TO Passenger;
+	GRANT SELECT, UPDATE ON Seats TO Passenger;
+	GRANT SELECT, UPDATE, INSERT, DELETE ON Tickets TO Passenger;
+	GRANT SELECT, UPDATE, INSERT, DELETE ON TicketStatuses TO Passenger;
+	GRANT SELECT, UPDATE, INSERT ON TicketPayments TO Passenger;
+
+	CREATE ROLE Driver;
+	GRANT SELECT, UPDATE ON Buses TO Driver;
+	GRANT SELECT, UPDATE ON Stops TO Driver;
+	GRANT SELECT ON Tickets TO Driver;
+	GRANT SELECT ON Companies TO Driver;
+	GRANT SELECT, UPDATE, INSERT, DELETE ON BusScheduleEntries TO Driver;
+	GRANT SELECT ON BusDetailsView TO Driver;
+	GRANT SELECT ON BusReviews TO Driver;
+	GRANT SELECT ON Passengers TO Driver;
+	GRANT SELECT, DELETE ON Seats TO Driver;
+	GRANT SELECT, UPDATE, INSERT, DELETE ON Trips TO Driver;
+	GRANT SELECT, UPDATE, INSERT ON TripStatuses TO Driver;
+	GRANT SELECT ON TicketPayments TO Driver;
+END
+
+
+REVERT
+EXECUTE AS USER = 'Pedro'
+
+select * from Users
+
+
+DROP ROLE Passenger;
+DROP ROLE Driver