How to make two column pivot and other as normal - sql-server

Question

I have 3 table name class , Student and Religion and below data are as follows
Class Table
ClassId ClassName
1 class-1
2 class-2
3 class-3
Religion Table
ReligionId RegionName
1 Hindu
2 Muslim
Student Table
employeeid StudentName religionid dateofbirth classid
1 A 1 1990-12-04 1
2 B 2 1999-12-04 2
3 C 2 2000-12-04 1
4 D 2 1988-12-04 1
5 E 2 2003-12-04 2
6 F NULL 2002-12-04 1
How Can I achieve below record from above tables
CLASSNAME HINDU MUSLIM Noreligion
class-1 1 2 1
class-2 0 2 0
You can create the tables from the below scripts
CREATE TABLE [dbo].[class](
[ClassId] [int] IDENTITY(1,1) NOT NULL,
[ClassName] [varchar](250) NULL,
CONSTRAINT [PK_class] PRIMARY KEY CLUSTERED
(
[ClassId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[Religion](
[ReligionId] [int] NOT NULL,
[RegionName] [varchar](50) NULL,
CONSTRAINT [PK_Religion] PRIMARY KEY CLUSTERED
(
[ReligionId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[Student](
[employeeid] [int] IDENTITY(1,1) NOT NULL,
[StudentName] [varchar](150) NULL,
[religionid] [int] NULL,
[dateofbirth] [date] NULL,
[classid] [int] NULL,
CONSTRAINT [PK_Student] PRIMARY KEY CLUSTERED
(
[employeeid] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
SET IDENTITY_INSERT [dbo].[class] ON
INSERT [dbo].[class] ([ClassId], [ClassName]) VALUES (1, N'class-1')
INSERT [dbo].[class] ([ClassId], [ClassName]) VALUES (2, N'class-2')
INSERT [dbo].[class] ([ClassId], [ClassName]) VALUES (3, N'class-3')
SET IDENTITY_INSERT [dbo].[class] OFF
INSERT [dbo].[Religion] ([ReligionId], [RegionName]) VALUES (1, N'hindu')
INSERT [dbo].[Religion] ([ReligionId], [RegionName]) VALUES (2, N'muslim')
SET IDENTITY_INSERT [dbo].[Student] ON
INSERT [dbo].[Student] ([employeeid], [StudentName], [religionid], [dateofbirth], [classid]) VALUES (1, N'A', 1, CAST(N'1990-12-04' AS Date), 1)
INSERT [dbo].[Student] ([employeeid], [StudentName], [religionid], [dateofbirth], [classid]) VALUES (2, N'B', 2, CAST(N'1999-12-04' AS Date), 2)
INSERT [dbo].[Student] ([employeeid], [StudentName], [religionid], [dateofbirth], [classid]) VALUES (3, N'C', 2, CAST(N'2000-12-04' AS Date), 1)
INSERT [dbo].[Student] ([employeeid], [StudentName], [religionid], [dateofbirth], [classid]) VALUES (4, N'D', 2, CAST(N'1988-12-04' AS Date), 1)
INSERT [dbo].[Student] ([employeeid], [StudentName], [religionid], [dateofbirth], [classid]) VALUES (5, N'E', 2, CAST(N'2003-12-04' AS Date), 2)
INSERT [dbo].[Student] ([employeeid], [StudentName], [religionid], [dateofbirth], [classid]) VALUES (6, N'F', NULL, CAST(N'2002-12-04' AS Date), 1)
SET IDENTITY_INSERT [dbo].[Student] OFF
Do it require Pivot table to be use.
I was not able to made the query getting such records.

Answer 1

This is more conditional aggregation that pivoting. This gets you the result you're after:
SELECT C.ClassName,
COUNT(CASE R.RegionName WHEN 'Hindu' THEN 1 END) AS Hindu,
COUNT(CASE R.RegionName WHEN 'Muslim' THEN 1 END) AS Muslim,
COUNT(CASE WHEN R.RegionName IS NULL THEN 1 END) AS NoReligion
FROM dbo.class C
JOIN dbo.Student S ON C.ClassId = S.classid
LEFT JOIN dbo.Religion R ON S.religionid = R.ReligionId
GROUP BY C.ClassName;
If you don't understand the syntax, please ask.
Edit: OP has now stated that there are more religions than just the 2 they provided, and needs to be dynamic. This therefore gives:
--Additional sample row if you wish:
INSERT [dbo].[Religion] ([ReligionId], [RegionName])
VALUES (3, N'Catholic');
GO
DECLARE #SQL nvarchar(MAX);
SET #SQL = N'SELECT C.ClassName,' + NCHAR(10) +
STUFF((SELECT N',' + NCHAR(10) +
N' COUNT(CASE R.RegionName WHEN ' + QUOTENAME(R.RegionName,N'''') + N' THEN 1 END) AS ' + QUOTENAME(R.RegionName)
FROM dbo.Religion R
ORDER BY R.ReligionId
FOR XML PATH(N'')),1,2,N'') + N',' + NCHAR(10) +
N'COUNT(CASE WHEN R.RegionName IS NULL THEN 1 END) AS NoReligion' + NCHAR(10) +
N'FROM dbo.class C' + NCHAR(10) +
N' JOIN dbo.Student S ON C.ClassId = S.classid' + NCHAR(10) +
N' LEFT JOIN dbo.Religion R ON S.religionid = R.ReligionId' + NCHAR(10) +
N'GROUP BY C.ClassName;';
SELECT #SQL;
EXEC sp_executesql #SQL;

Answer 2

This is a Pivot with dynamic columns. You can have unknown number of Religions
DECLARE #cols AS NVARCHAR(MAX), #sql AS NVARCHAR(MAX);
SET #cols = STUFF((SELECT distinct ',' + QUOTENAME(ReligionName)
FROM Religion c
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
Set #sql = '
SELECT ClassId, '+ #cols + ',[NoReligion]
FROM
(
Select
IIf (ReligionName IS NULL, ''NoReligion'', ReligionName) As ReligionName,
employeeid,s.ClassId
From
Student s INNER JOIN
Class ON s.classid = Class.ClassId FULL OUTER JOIN
Religion ON s.religionid = Religion.ReligionId) As src
Pivot
(
Count(employeeid)
FOR ReligionName IN('+#cols+',[NoReligion])
) As pvt'
EXECUTE sp_executesql #sql