I. Question

SQLServer database writing error occurred as follows: SQL Error (3621): String or binary data would be truncated The statement has been terminated. */

II. Cause

The length of the field definition in the database table structure is smaller than the actual length of the field content to be written, so it cannot be written.

III. Solution

After modifying the length of the fields in the table structure, it can be written successfully

eg：alter table table name alter column field name nvarchar(100)