[NX-2016] Consider using NVARCHAR instead of VARCHAR for MS SQL

No description provided.

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**Migrated from track.radensolutions.com**

- **Original Issue:** NX-2016
- **Type:** Feature
- **State:** Won't fix
- **Priority:** Normal
- **Subsystem:** Server
- **Created:** 2021-03-01 18:04:39 UTC
- **Updated:** 2025-11-10 17:42:02 UTC
- **Reporter:** Victor Kirhenshtein (@2128506)
