Find foreign keys and check constraints that are not trusted.sql

-- Find foreign keys and check constraints that are not trusted
-- Part of the SQL Server DBA Toolbox at https://github.com/DavidSchanzer/Sql-Server-DBA-Toolbox
-- This script lists the foreign key constraints that exist but are not trusted (ie. not enforced on existing data).
-- It's important to review these to ensure that this is deliberate (ie. the constraint cannot be trusted because the data may sometimes violate it).

SELECT '[' + s.name + '].[' + o.name + '].[' + i.name + ']' AS keyname,
       'DBCC CHECKCONSTRAINTS (''[' + i.name + ']'')' AS DBCCCheckConstraintsCommand,
       'ALTER TABLE [' + s.name + '].[' + o.name + '] WITH CHECK CHECK CONSTRAINT [' + i.name + ']' AS AlterTableCommand
FROM sys.foreign_keys i
    INNER JOIN sys.objects o
        ON i.parent_object_id = o.object_id
    INNER JOIN sys.schemas s
        ON o.schema_id = s.schema_id
WHERE i.is_not_trusted = 1
      AND i.is_not_for_replication = 0;

SELECT '[' + s.name + '].[' + o.name + '].[' + i.name + ']' AS keyname,
       'DBCC CHECKCONSTRAINTS (''[' + i.name + ']'')' AS DBCCCheckConstraintsCommand,
       'ALTER TABLE [' + s.name + '].[' + o.name + '] WITH CHECK CHECK CONSTRAINT [' + i.name + ']' AS AlterTableCommand
FROM sys.check_constraints i
    INNER JOIN sys.objects o
        ON i.parent_object_id = o.object_id
    INNER JOIN sys.schemas s
        ON o.schema_id = s.schema_id
WHERE i.is_not_trusted = 1
      AND i.is_not_for_replication = 0
      AND i.is_disabled = 0;