Check format of field

Posted on 2011-03-09
Last Modified: 2012-08-14
Hi experts,

Is there a way I can check the format of the an nvarchar field? Meaning I want to make sure the text in this field is XX-XXXX, where X is a number 0-9.

Question by:MAVSS
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Expert Comment

ID: 35083550
Yes you can  used the constraints For this

Author Comment

ID: 35083587
Thanks, sarabhai but I should've clarified. I have to use a query as this will be displayed in a report.

Author Comment

ID: 35084944
Can the format of a field be checked using a SQL query?
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LVL 40

Expert Comment

ID: 35085044
Here - try this:

select * from tablename where columnname like '%[0-9][0-9][0-9]-[0-9][0-9][0-9][0-9]%'
LVL 40

Accepted Solution

lcohan earned 500 total points
ID: 35085071
sorry you had XX-XXXX - updated below:

create table #t1 (c1 text)
insert #t1 values ('12-1234')
insert #t1 values ('ab-1234')
select * from #t1 where c1 like '%[0-9][0-9]-[0-9][0-9][0-9][0-9]%'

Author Closing Comment

ID: 35085829
Thanks. Used:
where c1 like '[0-9][0-9]-[0-9][0-9][0-9][0-9]' (Did not want to use %%)

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