## Make Sequential numbers into ranges

 Author Message fsr645 Forum Newbie Group: General Forum Members Points: 9 Visits: 49 I have a data look like this - Note: have to be breakdown per TNID fieldTNID TN3011170 44027871003011170 44027871013011170 44027871023011170 44027871033011171 44027871043011171 44027871053011175 44027871183011175 44027871193011175 44051655553011175 44051655563011175 44051655573011175 44051655583011175 4409447976How to write a T-SQL that the output will in ranges -TNID TN1 TN23011170 4402787100 44027871033011171 4402787104 44027871053011175 4402787118 44027871193011175 4405165555 44051655583011175 4409447976 4409447976 Thanks in advance. dwain.c SSC-Forever Group: General Forum Members Points: 44055 Visits: 6431 This should work in SQL 2000:`CREATE TABLE #Temp (TNID INT, TN VARCHAR(20))INSERT INTO #TempSELECT 3011170, '4402787100'UNION ALL SELECT 3011170, '4402787101'UNION ALL SELECT 3011170, '4402787102'UNION ALL SELECT 3011170, '4402787103'UNION ALL SELECT 3011171, '4402787104'UNION ALL SELECT 3011171, '4402787105'UNION ALL SELECT 3011175, '4402787118'UNION ALL SELECT 3011175, '4402787119'UNION ALL SELECT 3011175, '4405165555'UNION ALL SELECT 3011175, '4405165556'UNION ALL SELECT 3011175, '4405165557'UNION ALL SELECT 3011175, '4405165558'UNION ALL SELECT 3011175, '4409447976'SELECT TNID, TNMIN=MIN(TN), TNMAX=MAX(TN)FROM #TempGROUP BY TNIDDROP TABLE #Temp` My mantra: No loops! No CURSORs! No RBAR! Hoo-uh!My thought question: Have you ever been told that your query runs too fast?My advice:INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.Need to UNPIVOT? Why not CROSS APPLY VALUES instead?Since random numbers are too important to be left to chance, let's generate some!Learn to understand recursive CTEs by example.Splitting strings based on patterns can be fast!My temporal SQL musings: Calendar Tables, an Easter SQL, Time Slots and Self-maintaining, Contiguous Effective Dates in Temporal Tables fsr645 Forum Newbie Group: General Forum Members Points: 9 Visits: 49 I tried your query but it came out like this. The 3rd row is not correct.TNID TNMIN TNMAX3011170 4402787100 44027871033011171 4402787104 44027871053011175 4402787118 4409447976here's the missing recs:TNID TN1 TN23011175 4402787118 44027871193011175 4405165555 44051655583011175 4409447976 4409447976 Thanks for trying :-). Anyone out there have other ideas. GSquared SSC Guru Group: General Forum Members Points: 138731 Visits: 9731 Since the data depends on sequentiality, which isn't a property of relational data, you'll need a non-relational solution. That means a simple cursor.Step through the rows, if the TN increments by more than 1, or the TNID changes to a new value, insert the new values into a temp table as the start-range value, and update the prior row of the temp table with the last value, as the end-of-range. Then select from the temp table. - Gus "GSquared", RSVP, OODA, MAP, NMVP, FAQ, SAT, SQL, DNA, RNA, UOI, IOU, AM, PM, AD, BC, BCE, USA, UN, CF, ROFL, LOL, ETCProperty of The Thread"Nobody knows the age of the human race, but everyone agrees it's old enough to know better." - Anon Lynn Pettis SSC Guru Group: General Forum Members Points: 223374 Visits: 40405 Here is my shot at the solution.`CREATE TABLE #Temp (TNID INT, TN BIGINT);INSERT INTO #TempSELECT 3011170, 4402787100UNION ALL SELECT 3011170, 4402787101UNION ALL SELECT 3011170, 4402787102UNION ALL SELECT 3011170, 4402787103UNION ALL SELECT 3011171, 4402787104UNION ALL SELECT 3011171, 4402787105UNION ALL SELECT 3011175, 4402787118UNION ALL SELECT 3011175, 4402787119UNION ALL SELECT 3011175, 4405165555UNION ALL SELECT 3011175, 4405165556UNION ALL SELECT 3011175, 4405165557UNION ALL SELECT 3011175, 4405165558UNION ALL SELECT 3011175, 4409447976;with rCTE as (select row_number() over (order by (select null)) rn, t1.TNID, t1.TNfrom #Temp t1 left outer join #Temp t2 on t1.TNID = t2.TNID and t1.TN = t2.TN + 1where t2.TNID is nullunion allselect rn, t1.TNID, t1.TNfrom #Temp t1 inner join rCTE t2 on t1.TNID = t2.TNID and t1.TN = t2.TN + 1)select TNID, min(TN) TN1, max(TN) TN2 from rCTE group by rn, TNID order by rn,TNID;godrop table #Temp;go` Lynn PettisFor better assistance in answering your questions, click hereFor tips to get better help with Performance Problems, click hereFor Running Totals and its variations, click here or when working with partitioned tablesFor more about Tally Tables, click hereFor more about Cross Tabs and Pivots, click here and hereManaging Transaction LogsSQL Musings from the Desert Fountain Valley SQL (My Mirror Blog) GSquared SSC Guru Group: General Forum Members Points: 138731 Visits: 9731 Lynn Pettis (8/28/2012)Here is my shot at the solution.`CREATE TABLE #Temp (TNID INT, TN BIGINT);INSERT INTO #TempSELECT 3011170, 4402787100UNION ALL SELECT 3011170, 4402787101UNION ALL SELECT 3011170, 4402787102UNION ALL SELECT 3011170, 4402787103UNION ALL SELECT 3011171, 4402787104UNION ALL SELECT 3011171, 4402787105UNION ALL SELECT 3011175, 4402787118UNION ALL SELECT 3011175, 4402787119UNION ALL SELECT 3011175, 4405165555UNION ALL SELECT 3011175, 4405165556UNION ALL SELECT 3011175, 4405165557UNION ALL SELECT 3011175, 4405165558UNION ALL SELECT 3011175, 4409447976;with rCTE as (select row_number() over (order by (select null)) rn, t1.TNID, t1.TNfrom #Temp t1 left outer join #Temp t2 on t1.TNID = t2.TNID and t1.TN = t2.TN + 1where t2.TNID is nullunion allselect rn, t1.TNID, t1.TNfrom #Temp t1 inner join rCTE t2 on t1.TNID = t2.TNID and t1.TN = t2.TN + 1)select TNID, min(TN) TN1, max(TN) TN2 from rCTE group by rn, TNID order by rn,TNID;godrop table #Temp;go`You'll run into maxrecursion issues if the actual data has any significant size to it at all, with this solution. - Gus "GSquared", RSVP, OODA, MAP, NMVP, FAQ, SAT, SQL, DNA, RNA, UOI, IOU, AM, PM, AD, BC, BCE, USA, UN, CF, ROFL, LOL, ETCProperty of The Thread"Nobody knows the age of the human race, but everyone agrees it's old enough to know better." - Anon Lynn Pettis SSC Guru Group: General Forum Members Points: 223374 Visits: 40405 GSquared (8/28/2012)Lynn Pettis (8/28/2012)Here is my shot at the solution.`CREATE TABLE #Temp (TNID INT, TN BIGINT);INSERT INTO #TempSELECT 3011170, 4402787100UNION ALL SELECT 3011170, 4402787101UNION ALL SELECT 3011170, 4402787102UNION ALL SELECT 3011170, 4402787103UNION ALL SELECT 3011171, 4402787104UNION ALL SELECT 3011171, 4402787105UNION ALL SELECT 3011175, 4402787118UNION ALL SELECT 3011175, 4402787119UNION ALL SELECT 3011175, 4405165555UNION ALL SELECT 3011175, 4405165556UNION ALL SELECT 3011175, 4405165557UNION ALL SELECT 3011175, 4405165558UNION ALL SELECT 3011175, 4409447976;with rCTE as (select row_number() over (order by (select null)) rn, t1.TNID, t1.TNfrom #Temp t1 left outer join #Temp t2 on t1.TNID = t2.TNID and t1.TN = t2.TN + 1where t2.TNID is nullunion allselect rn, t1.TNID, t1.TNfrom #Temp t1 inner join rCTE t2 on t1.TNID = t2.TNID and t1.TN = t2.TN + 1)select TNID, min(TN) TN1, max(TN) TN2 from rCTE group by rn, TNID order by rn,TNID;godrop table #Temp;go`You'll run into maxrecursion issues if the actual data has any significant size to it at all, with this solution.True, and I didn't ad the option to cap it either, but it was my first shot. I am looking at some other alternatives as well. Lynn PettisFor better assistance in answering your questions, click hereFor tips to get better help with Performance Problems, click hereFor Running Totals and its variations, click here or when working with partitioned tablesFor more about Tally Tables, click hereFor more about Cross Tabs and Pivots, click here and hereManaging Transaction LogsSQL Musings from the Desert Fountain Valley SQL (My Mirror Blog) Lynn Pettis SSC Guru Group: General Forum Members Points: 223374 Visits: 40405 Here is another option that appears to work for the given test data:`CREATE TABLE #Temp (TNID INT, TN BIGINT);INSERT INTO #TempSELECT 3011170, 4402787100UNION ALL SELECT 3011170, 4402787101UNION ALL SELECT 3011170, 4402787102UNION ALL SELECT 3011170, 4402787103UNION ALL SELECT 3011171, 4402787104UNION ALL SELECT 3011171, 4402787105UNION ALL SELECT 3011175, 4402787118UNION ALL SELECT 3011175, 4402787119UNION ALL SELECT 3011175, 4405165555UNION ALL SELECT 3011175, 4405165556UNION ALL SELECT 3011175, 4405165557UNION ALL SELECT 3011175, 4405165558UNION ALL SELECT 3011175, 4409447976;with basedata as (select TNID, TN, TN - row_number() over (order by TNID, TN) as grpfrom #Temp)select TNID, min(TN) as TN1, max(TN) as TN2from basedatagroup by grp, TNID;godrop table #Temp;go` Lynn PettisFor better assistance in answering your questions, click hereFor tips to get better help with Performance Problems, click hereFor Running Totals and its variations, click here or when working with partitioned tablesFor more about Tally Tables, click hereFor more about Cross Tabs and Pivots, click here and hereManaging Transaction LogsSQL Musings from the Desert Fountain Valley SQL (My Mirror Blog) Luis Cazares SSC Guru Group: General Forum Members Points: 95306 Visits: 21199 Lynn, your solutions are great :-D. But this is the 7,2000 forum I wonder if that helps the OP. Luis C.General Disclaimer:Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?How to post data/code on a forum to get the best help: Option 1 / Option 2 Lynn Pettis SSC Guru Group: General Forum Members Points: 223374 Visits: 40405