Question

I’m trying to do the following in Microsoft SQL Server:

CREATE XML SCHEMA COLLECTION [dbo].[XYZSchema] AS 
N'schema content'
GO 

The problem is that schema content contains a quote (‘) in a regexp and is breaking the instruction:

 N' ..... <xsd:pattern value="\w+([-+.'] ..... '

Is there a way to escape the quote and maintain the correctnes of the regexp, or declare the Expresion of CREATE XML SCHEMA COLLECTION in some other way?

Answer 1

You’re writing a varchar (well, nvarchar) literal. The way to escape single quotes within such a literal is to double them up:

N' ..... <xsd:pattern value="\w+([-+.''] ..... '

From Constants:

If a character string enclosed in single quotation marks contains an embedded quotation mark, represent the embedded single quotation mark with two single quotation marks.