🔎 During recent data‑migration projects we discovered that SQL Server Integration Services (SSIS) would silently truncate Unicode characters (e.g., emojis, Asian scripts) when loading data into NVARCHAR(MAX) columns. The bug manifested only when the source used a Unicode UTF‑8 flat file and the destination table had a collation mismatch .
What are you hosting the SSISDB catalog on? SSIS-927
: Often triggered when deploying packages via the Project Deployment Model into the SSISDB catalog, where environment variables or parameters conflict with local project parameters. : Often triggered when deploying packages via the
| Command | Purpose | |---------|---------| | SELECT ORIGINAL_LOGIN(), SUSER_SNAME(); | Shows the login under which the current session runs. | | EXEC sp_helpuser; | Lists users and their permissions in the current DB. | | EXEC sp_change_users_login 'Auto_Fix', 'login_name', NULL, 'password'; | Fixes orphaned users (rare, but can cause 927). | | ALTER DATABASE <db> SET SINGLE_USER WITH ROLLBACK IMMEDIATE; | Switches DB to single‑user (useful for troubleshooting). | | ALTER DATABASE <db> SET MULTI_USER; | Returns DB to normal mode. | | | EXEC sp_change_users_login 'Auto_Fix'