T-SQL替换“西里尔符号”返回'????'

Question

I have a function that converts CSV list to nvarchar(max) records in table. I have noticed it is not working with cyrillic and the problem is this replace here:

DECLARE @XML xml = N'<r><![CDATA[' + REPLACE(@List, ',', ']]></r><r><![CDATA[') + ']]></r>'

How to make the replace to work with cyrillic symbols? For example 'тест'.

@List is NVARCHAR(MAX) and I am using SQL Server 2012.

Answer 1

Are you defining your @List variable as nvarchar? Replace will work fine with nvarchars

declare @list nvarchar(50) = N'те,ст'
select @list
DECLARE @XML xml = N'<r><![CDATA[' + REPLACE(@List, ',', ']]></r><r><![CDATA[') + ']]></r>'

Answer 2

The N'' notation is used to declare Unicode string literals. If you define a variable NVARCHAR, it is automatically Unicode-enabled (so there is no need (or rather: no way) to additionally declare the N for @variables - it is part of the string literal).

Since you get Cyrillic characters in SELECT N'тест' , you should check where the variable @List is assigned, and what it's value is.

Not sure how your CSV parser handles Unicode characters, but the source of your problem may be

• not handling file encodings
• assigning to a VARCHAR column or variable before assigning to @List