SQL query to update column as per excel formula - sql

Question

This is my Excel formula to get column (tat_orig) values
=IF((X3-W3)*24<=24,(X3-W3)*24,
IF(AND(WEEKDAY(W3,2)<6,WEEKDAY(X3,2)<6), (NETWORKDAYS(W3,X3)-1+MOD(X3,1)-MOD(W3,1))*24,
IF(OR(WEEKDAY(W3,2)>5,WEEKDAY(X3,2)>5),(NETWORKDAYS(W3,X3)*24))))
and this is the SQL query to get the value for column (tat_orig) :
IF OBJECT_ID(N'DATEDIFFBIG', N'FN') IS NOT NULL
DROP FUNCTION dbo.DATEDIFFBIG;
GO
CREATE FUNCTION DATEDIFFBIG(#d1 datetime, #d2 datetime)
RETURNS bigint
AS
BEGIN
RETURN CONVERT(bigint, DATEDIFF(day, #d1, #d2)) * 86400000 -
DATEDIFF(second, DATEADD(day, DATEDIFF(day, 0, #d1), 0), #d1) * 1000 +
DATEDIFF(second, DATEADD(day, DATEDIFF(day, 0, #d2), 0), #d2) * 1000;
END
GO
--Network days shim
IF OBJECT_ID(N'NETWORKDAYS', N'FN') IS NOT NULL
DROP FUNCTION dbo.NETWORKDAYS;
GO
CREATE FUNCTION dbo.NETWORKDAYS(#d1 datetime, #d2 datetime)
RETURNS int
AS
BEGIN
DECLARE #w1 int = DATEPART(weekday, #d1);
DECLARE #w2 int = DATEPART(weekday, #d1);
DECLARE #dd float = FLOOR(dbo.DATEDIFFBIG(#d1, #d2) / 86400000.0);
-- network days is based on a holidays table; I just added this date arbitrarily so that
-- the results match what Excel says
DECLARE #holidays TABLE(holiday datetime);
INSERT INTO #holidays VALUES
('2016-06-15');
RETURN (#dd + #w2 - #w1) / 7 * 5 +
#w2 - #w1 + 1 +
IIF(#w2 = 7, -1, 0) +
IIF(#w1 = 1, -1, 0) +
(SELECT COUNT(*) FROM #holidays WHERE #d1 <= holiday AND holiday < #d2);
END
GO
-- Turn around time shim
IF OBJECT_ID(N'TURNAROUND', N'FN') IS NOT NULL
DROP FUNCTION dbo.TURNAROUND;
GO
CREATE FUNCTION dbo.TURNAROUND(#d1 datetime, #d2 datetime)
RETURNS float
AS
BEGIN
DECLARE #w1 int = DATEPART(weekday, #d1);
DECLARE #w2 int = DATEPART(weekday, #d1);
DECLARE #nd int = dbo.NETWORKDAYS(#d1, #d2);
DECLARE #hd float = dbo.DATEDIFFBIG(#d1, #d2) / 3600000.0;
DECLARE #td float = dbo.DATEDIFFBIG(CAST(#d1 AS TIME), CAST(#d2 AS TIME)) / 86400000.0;
RETURN (
IIF(#hd <= 24.0,
#hd,
IIF(#w1 < 6 AND #w2 < 6,
24 * (#nd - 1 + #td),
IIF(#w2 > 5 OR #w1 > 5,
24 * #nd, 0))));
END
GO
-- the data
DECLARE #items TABLE
(
time_created datetime,
time_responded datetime
);
INSERT INTO #items VALUES
('2016-06-10 15:42:00.000', '2016-06-15 03:03:00.000'),
('2016-06-15 01:28:00.000', '2016-06-15 03:03:00.000'),
('2016-06-14 07:46:00.000', '2016-06-15 03:03:00.000'),
('2016-07-04 05:35:25.000', '2016-07-04 19:05:48.000'),
('2016-07-04 04:56:09.000', '2016-07-04 18:29:28.000'),
('2016-07-04 09:15:33.000', '2016-07-04 22:08:43.000'),
('2016-07-04 08:44:24.000', '2016-07-04 21:40:57.000'),
('2016-07-04 07:14:51.000', '2016-07-04 21:39:24.000'),
('2015-07-04 07:14:51.000', '2016-07-04 21:39:24.000');
-- the results
SELECT time_created, time_responded, dbo.TURNAROUND(time_created, time_responded) AS [TAT Orig] FROM #items;
Now I have the Excel formula for column (Tat_final) which is just same only the (w3) cell changed to (y3) in the formula how i can replace this in existing formula to calculate tat_final.
This is Excel formula for tat_final:
=IF((X3-Y3)*24<=24,(X3-Y3)*24,
IF(AND(WEEKDAY(Y3,2)<6,WEEKDAY(X3,2)<6),(NETWORKDAYS(Y3,X3)-1+MOD(X3,1)-MOD(Y3,1))*24,
IF(OR(WEEKDAY(Y3,2)>5,WEEKDAY(X3,2)>5),(NETWORKDAYS(Y3,X3)*24))))
I need the SQL query to get the tat_final. I know I can get it with the above query. But I don't know where I can change (Y3) instead of (W3) because formula is the same in Excel.