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Script to randomly create characters in MS SQL

Posted on 2016-11-27
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Last Modified: 2016-11-28
We want to create a script that would create a value of 26 character length and have mixed characters from ascii value 65 thru 128.  We have so far:

select FLOOR(RAND(CHECKSUM(NEWID()))*(128-65))

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But the values is lower that 65.

Also can't get to set for/next or loop to create a value of 26 random characters long.

Please advice.
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Question by:rayluvs
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LVL 38

Accepted Solution

by:
Pawan Kumar earned 2000 total points
ID: 41903626
Try.. This will give you different 26 characters each time.

SELECT LEFT(NEWID(),26)

O/p <<26 length>>

39AF35C7-8B7C-4BFD-8C76-93

Hope it helps !
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Author Comment

by:rayluvs
ID: 41903628
Great!!!

We were still working on a solution (obviously your way better):
DECLARE @X INT=1, @v varchar
WAY:  --> Here the  DO statement
  SET @X += 1
  set @v=@v + 'h'
IF @X<=26 GOTO WAY
select  @v 'Value'

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Thanx!!

Can you explain a bit on 'SELECT LEFT(NEWID(),26)'?
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LVL 38

Expert Comment

by:Pawan Kumar
ID: 41903630
NewID() will give us unique value of 36 length. It is of data type uniqueidentifier.

After that we just taking 26 characters with the help of LEFT function.

Hope it helps !!
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Author Comment

by:rayluvs
ID: 41903639
Thanx!
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LVL 38

Expert Comment

by:Pawan Kumar
ID: 41903640
Great ! Welcome

Regards,
Pawan
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Author Closing Comment

by:rayluvs
ID: 41904387
(forgot yo award)

Thanx!
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