T-SQL how to count holidays and exclude it in my scenario

Question

Hi team, 
My customer will submit a ticket to our system and it valid for 7 days. For example, if customer A submit a ticket on 2015/1/15, the request will be ineffective at 2015/1/22. So, I can directly use the following
T-SQL code to update the ticket status: 
update customer_ticket set ticket_status="Cancle"
where ticket_submit_time < getdate() - 7
But, if 2015/1/19,2015/1/20,2015/1/21 are holidays, the ticket valid time should extend 3 days, it means the ticket of customer A will be ineffective at 2015/1/25. How can I count the holidays and then extend the valid time of ticket automatically? 
I have a table to store our holidays, here are the sample data: 
CREATE TABLE QC_OVERTIME_SCHEDULE
SCHEDULE_DATE DATE,
IS_INCLUDED VARCHAR(10),
UPDATE_TIME DATE,
MEMO VARCHAR(250)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] ([SCHEDULE_DATE], [IS_INCLUDED], [UPDATE_TIME], [MEMO]) VALUES (CAST(N'2015-01-19' AS Date), N'0', CAST(N'2015-01-15' AS Date), N'Holiday')
INSERT [dbo].[QC_OVERTIME_SCHEDULE] ([SCHEDULE_DATE], [IS_INCLUDED], [UPDATE_TIME], [MEMO]) VALUES (CAST(N'2015-01-20' AS Date), N'0', CAST(N'2015-01-15' AS Date), N'Holiday')
INSERT [dbo].[QC_OVERTIME_SCHEDULE] ([SCHEDULE_DATE], [IS_INCLUDED], [UPDATE_TIME], [MEMO]) VALUES (CAST(N'2015-01-21' AS Date), N'0', CAST(N'2015-01-15' AS Date), N'Holiday')
Please let me know if you have any ideas, thanks!
Serena,

Answer 1

Hi Serana,
You may reference the below as well. The expiring date of each ticket can be calculated based on the calendar table and the tickets whose expiring date >= GETDATE() will be updated as 'Cancle'.
CREATE TABLE QC_OVERTIME_SCHEDULE
SCHEDULE_DATE DATE,
UPDATE_TIME DATE,
IsWorkday BIT
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150109' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150110' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150111' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150112' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150113' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150114' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150115' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150116' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150117' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150118' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150119' AS Date), CAST(N'20150115' AS Date), 1)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150120' AS Date), CAST(N'20150115' AS Date), 1)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150121' AS Date), CAST(N'20150115' AS Date), 1)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150122' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150123' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150124' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150125' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150126' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150127' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150128' AS Date), CAST(N'20150115' AS Date), 0)
INSERT [dbo].[QC_OVERTIME_SCHEDULE] VALUES (CAST(N'20150129' AS Date), CAST(N'20150115' AS Date), 0)
--DROP TABLE QC_OVERTIME_SCHEDULE,customer_ticket
CREATE TABLE customer_ticket
(id INT,
ticket_submit_time DATE,
status_change_date DATE,
ticket_status VARCHAR(10));
INSERT INTO customer_ticket VALUES (1,'20150109',NULL,'Open');
INSERT INTO customer_ticket VALUES (1,'20150115',NULL,'Open');
INSERT INTO customer_ticket VALUES (1,'20150118',NULL,'''Open');
INSERT INTO customer_ticket VALUES (1,'20150122',NULL,'Open');
SELECT * FROM [QC_OVERTIME_SCHEDULE]
SELECT * FROM customer_ticket
;WITH cte AS
SELECT c.id, c.ticket_submit_time, c.status_change_date,c.ticket_status, t.SCHEDULE_DATE AS expireDate FROM customer_ticket c
CROSS APPLY
(SELECT SCHEDULE_DATE FROM (SELECT SCHEDULE_DATE,ROW_NUMBER() OVER(ORDER BY SCHEDULE_DATE) as rn FROM QC_OVERTIME_SCHEDULE WHERE SCHEDULE_DATE>=C.ticket_submit_time AND IsWorkday=0) as tb WHERE RN=8 ) AS t
UPDATE cte SET status_change_date=GETDATE(),ticket_status='Cancle'
WHERE expireDate<=GETDATE()
If you have any question, feel free to let me know.
Eric Zhang
TechNet Community Support