SQL Server Find Orphan Users Script
Apr 17, 2026 / · 8 min read · sql server security orphan users sys.database_principals sys.server_principals sp_change_users_login database administration sql scripts security audit login management ·Orphaned database users are a common problem after database restores, server migrations, or login deletions. A database user becomes orphaned when its SID does not match any server-level login SID. This script queries sys.database_principals and sys.server_principals to find every orphaned user in a database, and shows …
Read MoreA single catalog query can list every grant, deny, and role membership in a database, and the result is the starting point for an access review. The script below returns one flat result set that covers permissions granted directly to a user, permissions a user holds through a database role, and permissions granted to …
Read MoreSQL Server Object Permissions: Generate GRANT Statements
Giving an application role read, write and execute rights on a database usually means one GRANT per table per permission plus one per stored procedure, which runs to hundreds of statements on a mid-sized schema. The script below writes those statements for you from sys.objects, schema-qualified and bracket-quoted, so …
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