| title | description | author | ms.author | ms.date | ms.service | ms.subservice | ms.topic | helpviewer_keywords | |
|---|---|---|---|---|---|---|---|---|---|
MSSQLSERVER_12301 |
MSSQLSERVER_12301 |
MashaMSFT |
mathoma |
04/04/2017 |
sql |
supportability |
reference |
|
[!INCLUDE SQL Server Azure SQL Database Azure SQL Managed Instance]
| Attribute | Value |
|---|---|
| Product Name | SQL Server |
| Event ID | 12301 |
| Event Source | MSSQLSERVER |
| Component | SQLEngine |
| Symbolic Name | HK_UNSUPPORTED_NULLABLE_COLUMNS |
| Message Text | Nullable columns in the index key are not supported with 'construct'. |
Do not use nullable columns in the index key.