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Asked: 2026-05-14T04:02:04+00:00

How to detect if a string contains special characters like #,$,^,&,*,@,! etc (non-alphanumeric characters)

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How to detect if a string contains special characters like #,$,^,&,*,@,! etc (non-alphanumeric characters) in SQL server 2005?

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1 Answer

  1. Editorial Team

    Assuming SQL Server:

    e.g. if you class special characters as anything NOT alphanumeric:

    DECLARE @MyString VARCHAR(100)
SET @MyString = 'adgkjb$'

IF (@MyString LIKE '%[^a-zA-Z0-9]%')
    PRINT 'Contains "special" characters'
ELSE
    PRINT 'Does not contain "special" characters'

    Just add to other characters you don’t class as special, inside the square brackets

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