Hi to to get max of value + 1 from sql server

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Hi to all,
Here i need to get max of value + 1. but first value is 0001 and how to get my max +1 ('0002') but i show only 2.how i get 0002.

What I have tried:

select MAx(maxid)+1 from tblcategoryuser;
it show only 2
but i need to get 0002

Posted 8-Mar-16 19:15pm

JOTHI KUMAR Member 10918227

Updated 8-Mar-16 21:13pm

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Maciej Los 9-Mar-16 1:59am

'0001' is not numeric value. It's string representation of 1 with leading zeros.

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Garth J Lancaster · Accepted Answer · 2016-03-08T19:32:00

Surely you are getting confused between the number value and its desired 'display' representation - '2' is correct from sql-server point of view

you dont say what version of SQL server you're using, 'newer' versions ?>2012 have a 'FORMAT' function FORMAT (Transact-SQL)[^] ie you might be able to do

select FORMAT(MAX(maxid)+1, 'd4') from tblcategoryuser;

If you're using < 2012, well, then you might get away with

select right('0000' + cast(MAX(maxid)+1 as varchar(4)), 4)

Peter Leow · Accepted Answer · 2016-03-08T21:13:00

Look like you are trying to get the next unique id by querying and incrementing the the prevailing max id. In a multi-user environment, it is not unimaginable that more than one users may get the same max id, and as a result, it will cause clashes. Instead, learn to do it correctly by reading Ask Your Database for that Unique ID[^]

Hi to to get max of value + 1 from sql server

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