Question

My query looks like:

string str = string.Format("Insert into [MyDB].[dbo].[tlb1] ([file_path],[CONTENT1],[CONTENT2]) values ('{0}','{1}','{2}');", fullpath, _val[0], _val[1]);

Now when I insert data into database if array _val[] contains data in english language it insert correctly but when array contains data in Russian Language in database this show like ???????????????????????
Is there a way to insert data in Russian Language from an array.

Answer 1

First of all, you should use prepared statements and let the database driver insert the placeholders correctly (i.e. SqlCommand with parameters). Then the issue should go away (as well as any potential SQL injection problems).

As a quick fix in your case: Prefix the string literals you’re inserting with N:

... values (N'{0}',N'{1}',N'{2}')

This causes the literals to be Unicode literals, not arbitrary-legacy-codepage ones and thus preventing the conversion from Unicode to the legacy codepage (which results in question marks for characters that cannot be represented).