gaps-and-islands

With the following data create table #ph (product int, [date] date, price int) insert into #ph select 1, '20120101', 1 insert into #ph select 1, '20120102', 1 insert into #ph select 1, '20120103', 1 insert into #ph select 1, '20120104', 1 insert into #ph select 1, '20120105', 2 insert into #ph select 1, '20120106', 2 insert into #ph select 1, '20120107', 2 insert into #ph select 1, '20120108', 2 insert into #ph select 1, '20120109', 1 insert into #ph select 1, '20120110', 1 insert into #ph select 1, '20120111', 1 insert into #ph select 1, '20120112', 1 I would like to produce the following

Im working on a SSRS / SQL project and trying to write a query to get the gaps between dates and I am completely lost with how to write this.Basically we have a number of devices which can be scheduled for use and I need a report to show when they are not in use. I have a table with Device ID, EventStart and EventEnd times, I need to run a query to get the times between these events for each device but I am not really sure how to do this. For example: Device 1 Event A runs from `01/01/2012 08:00 - 01/01/2012 10:00` Device 1 Event B runs from `01/01/2012 18:00 - 01/01/2012 20:00` Device 1 Event

The following User History table contains one record for every day a given user has accessed a website (in a 24 hour UTC period). It has many thousands of records, but only one record per day per user. If the user has not accessed the website for that day, no record will be generated. Id UserId CreationDate ------ ------ ------------ 750997 12 2009-07-07 18:42:20.723 750998 15 2009-07-07 18:42:20.927 751000 19 2009-07-07 18:42:22.283 What I'm looking for is a SQL query on this table with good performance , that tells me which userids have accessed the website for (n) continuous days without

I have a table that contains categories, dates and rates. Each category can have different rates for different dates, one category can have only one rate at a given date. Id CatId Date Rate ------ ------ ------------ --------- 000001 12 2009-07-07 1 000002 12 2009-07-08 1 000003 12 2009-07-09 1 000004 12 2009-07-10 2 000005 12 2009-07-15 1 000006 12 2009-07-16 1 000007 13 2009-07-08 1 000008 13 2009-07-09 1 000009 14 2009-07-07 2 000010 14 2009-07-08 1 000010 14 2009-07-10 1 Unique index (catid, Date, Rate) I would like for each category to group all continuous dates ranges and keep only the

I want to fill the calendar object which requires start and end date information. I have one column which contains a sequence of dates. Some of the dates are consecutive (have one day difference) and some are not. InfoDate 2013-12-04 consecutive date [StartDate] 2013-12-05 consecutive date 2013-12-06 consecutive date [EndDate] 2013-12-09 [startDate] 2013-12-10 [EndDate] 2014-01-01 [startDate] 2014-01-02 2014-01-03 [EndDate] 2014-01-06 [startDate] 2014-01-07 [EndDate] 2014-01-29 [startDate] 2014-01-30 2014-01-31 [EndDate] 2014-02-03 [startDate] 2014-02-04 [EndDate] I want to pick each

I have a table with the following definition CREATE TABLE mytable ( id INT IDENTITY(1, 1) PRIMARY KEY, number BIGINT, status INT ) and example data INSERT INTO mytable VALUES (100,0), (101,0), (102,0), (103,0), (104,1), (105,1), (106,0), (107,0), (1014,0), (1015,0), (1016,1), (1017,0) Looking only at the rows where status = 0 how can I collapse the Number values into ranges of contiguous sequential numbers and find the start and end of each range? i.e. For the example data the results would be FROM to Number 100 103 Number 106 107 Number 1014 1015 Number 1017 1017 As mentioned in the comments