How to convert sql query in asp.net code behind

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C#

ASP.NET

How to write this select query in asp.net code behind

DECLARE @calls_table TABLE
    (
      ID INT ,
      Division CHAR(1) ,
      [STATUS] VARCHAR(50)
    )
INSERT  INTO @calls_table
        ( ID, Division, STATUS )
VALUES  ( 1001, 'A', 'Open' ),
        ( 1002, 'B', 'Closed' ),
        ( 1003, 'A', 'Closed' ),
        ( 1004, 'C', 'Open' ),
        ( 1005, 'C', 'Open' )

SQL Query:

SELECT  Division ,
        SUM(CASE WHEN STATUS = 'Open' THEN 1
                 ELSE 0
            END) AS Open_Calls ,
        SUM(CASE WHEN STATUS = 'Closed' THEN 1
                 ELSE 0
            END) AS Closed_Calls ,
        COUNT(*) AS 'Total_Calls' ,
        CONVERT(DECIMAL(5, 2), SUM(CASE WHEN STATUS = 'Closed' THEN 1
                                        ELSE 0
                                   END)) / COUNT(*) AS Closed_Calls_Perc
FROM    @calls_table
GROUP BY Division

Please kindly give me the answer as soon as possible.

Thanks
Sathik