Get alpha numeric max value from a table

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SQL-Server-2008R2

Hi All,

I have a table name purchase- the two columns are PurchaseID and PurchaseCode
PurchaseID starts with 100(identity) and I need when my page load my text box show purchasecode =
PO-101 how can i do that. ( here PurchaseID(int), PurchaseCode(Nvarchar(10))

thank you

Posted 9-May-14 20:41pm

afsal.mp

Updated 9-May-14 21:05pm

v2

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DamithSL · Answer 1 · 2014-05-09T20:58:00

Solution 1

check this fiddle [^]

SQL

--using top 1 and order by 
-- if you need to get the full id 
select top  1 SUBSTRING(id,  CHARINDEX('-',id)+1, DATALENGTH(id)), id
from Test order by 1 desc;
-- using max

select max(SUBSTRING(id,  CHARINDEX('-',id)+1, DATALENGTH(id)))
from Test;

If you need to build PO from integer column data then try with

SQL

-- buld PO's from id

select 'PO-' + CONVERT(varchar(10), id) from Test2

Sample[^]

Posted 9-May-14 20:58pm

DamithSL

Updated 9-May-14 21:12pm

v2

Comments

afsal.mp 10-May-14 3:04am

shows error 'Argument data type int is invalid for argument 1 of substring function.

'

DamithSL 10-May-14 3:12am

check my updated answer

afsal.mp 10-May-14 3:28am

Thank you.. DamithSL.. It is working...