ใช้ windows 7 ใช้โปรแกรม sql server 2008 r2 แล้วตอน attach database เข้ามามันฟ้องว่า "Database'testdb' cannot be upgraded because it is read-only or has read-only files Make the database or files writeable, and rerun recovery.(microsoft sql server, error:3415) " ใครพอทราบบ้างครับ
-You upgrade the SQL Server 2000 database by restoring the database backup or by attaching the database file.
Before the upgrade, the database has one of the following configurations:
-The state of the database is marked as read-only.
One of the file groups in the database is marked as read-only.