AutoGenrate Number in SQL.

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SQL-Server-2008R2

Dear,

I have table called "Call" the columns are CallNo<numberic>, CallNumber<nvarchar(500)>, CallDate<date>

What i When Call being enter CallNumber should genrate 000001 so on depend upon CallNo.

I used in computed Column Specification Formula, ('00000'+right(CONVERT([nvarchar](250),[CallNo],(0)),(5)))

If CallNo=1 then i shows 000001
but if Call No=100 then shows 00000100

digit are increase. i do'nt want to increase digit
if Call No=100 then i shows 000100

how to do it in SQL.

Thanks
Basit.

Posted 30-Aug-15 20:31pm

basitsar

Updated 30-Aug-15 20:36pm

v4

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3 solutions

Solution 1

If I understand your situation correctly, I would advice not doing this. It looks like you're trying to automatically generate and store an ordinal number. In my opinion the calculation for the ordinal and ordering should be done in an SQL statement based on some other information, for example time stamps of the call etc.

You already have a CallDate fields so why not use that to order and rank the rows. For example have a look at ROW_NUMBER[^]

Posted 30-Aug-15 20:40pm

Wendelius

Comments

Schatak 1-Sep-15 2:16am

Exactly

Solution 3

You already have the "right" function, but wrong logic, you should concatenate first then extract the rightmost six digits, like this:

select right('000000'+CONVERT(varchar(6),100),6)

Posted 30-Aug-15 20:51pm

Peter Leow

Updated 30-Aug-15 20:52pm

v2

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DamithSL · Accepted Answer · 2015-08-30T20:42:00

Solution 2

SQL

SELECT CallNo, RIGHT('000000'+CAST(CallNo AS VARCHAR(6)),6) as CallNumber from YourTable

Posted 30-Aug-15 20:42pm

DamithSL

Updated 30-Aug-15 20:44pm

v2

Comments

basitsar 31-Aug-15 3:25am

Thanks Alot Dear

DamithSL 31-Aug-15 3:26am

You are welcome!