sql - Why it inserts "?" instead of persian unicode characters?

Question

I am creating an ETL project, in which I want to move a table on an Oracle server into a table on a SQL Server.

I have a varchar2 column in Oracle, which I mapped to a varchar column in SQL Server.

But when I execute the ETL (using Microsoft BI), the data turn into "?".

The original data is persian unicode characters.

Answer 1

假设表名是some_table并且列名是SQL Serversome_column的大小100字符。运行以下 T-SQL 命令应该可以解决您的问题：

ALTER TABLE some_table ALTER COLUMN some_column NVARCHAR(100)