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string function

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Topic

skativarapu
Starting Member

13 Posts

Posted - 2006-06-23 : 10:35:26

Hi all, iam trying to find a string function which would replace column value where there is a ssn with 1 and anything else(blank,null,...) with 0. i need to count the number of rows with ssn and one without ssn.
i checked few string functions but no use

any help appreciated

derrickleggett
Pointy Haired Yak DBA

4184 Posts

Posted - 2006-06-23 : 10:39:18

1 and anything else? Wouldn't that be all of them? 1, blank, null, and space would be sufficient, or are you actually wanting an algorithm that finds out if it's a valid SSN or not?

MeanOldDBA
derrickleggett@hotmail.com

When life gives you a lemon, fire the DBA.

skativarapu
Starting Member

13 Posts

Posted - 2006-06-23 : 10:46:06

all iam trying to do is to create a new column which will have 1 if there is a ssn in the B_SSN column and if there is null or blank B_SSN colum then the new column will will have 0
so that i can count the number of loan enquiries with ssn and one without ssn

skativarapu
Starting Member

13 Posts

Posted - 2006-06-23 : 11:05:58

to be more clear iam writing a select statement which will insert data from my sorce table. in my sorce table i have a column B_SSN which either has a ssn or its null/blank. iam trying to find a function which will give an output 1 if there is a ssn in that column zero if null or blank

RyanRandall
Master Smack Fu Yak Hacker

1074 Posts

Posted - 2006-06-23 : 12:01:05

Like this?

--data
declare @t table (id int identity(1, 1), B_SSN varchar(10))
insert @t
          select null
union all select 'abc'
union all select ''
union all select '    '
union all select 'xyz'

--calculation
select *, case when len(isnull(B_SSN, '')) = 0 then 0 else 1 end as 'Non-null/blank' from @t

/*
id          B_SSN      Non-null/blank 
----------- ---------- -------------- 
1           NULL       0
2           abc        1
3                      0
4                      0
5           xyz        1
*/

Ryan Randall
www.monsoonmalabar.com London-based IT consultancy

Solutions are easy. Understanding the problem, now, that's the hard part.

skativarapu
Starting Member

13 Posts

Posted - 2006-06-23 : 12:16:31

mighrt not be big butit may help anyone
the query below displays id,ssn and 1 if there is a ssn in the B_SSN column and if there is null or blank B_SSN colum then the new column will have 0

select id,b1_ssn,case when b1_ssn is null then 0
when b1_ssn = ' ' then 0 else 1 END AS ssn_filled from leadloan

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