As the protection of Windows and page files, temporary files folder and other barriers, BitLocker good security barrier to protect the weak link in EFS. Through the concept of users and PKI, EFS can also use the physical smart card or U disk encryption module, etc. to achieve enterprise-class security management capabilities. With BitLocker and EFS, PC or laptop computer stolen can maintain adequate security. In Windows Vista, adding a new data protection feature called BitLocker, he can provide disk-level data encryption. As Windows Vista Enterprise and Ultimate versions of standard components, BitLocker in some cases can even replace Windows EFS. In this article, I will show you how to turn on BitLocker, and to protect it on the boot partition. Before we begin, we first look at BitLocker encryption to achieve the minimum system requirements. The following table is turned on the minimum requirements for BitLocker.
This particular routine is a routine, not the user can create an object database. All the metadata about the disks are stored in the disk group itself, allowing them to self-description as possible. Routine work that you may encounter when trying on the library table in a column or columns to create a unique index, the system prompted ORA-01452: can not create unique index, duplicate records found. The following summarize the find and delete duplicate records several ways: SQL desc czName Null? Type ------------------------------- ---------- C1 NUMBERC10 NUMBERC20 VARCHAR2 . In Oracle, each record has a rowid, rowid in the entire database is unique, rowid identifies each record in Oracle in which a data file, block, line. . In the duplicate records, it may be the content of all the columns are the same, but the rowid is not the same, so long as the duplicate records identified those with the greatest rowids on it, and the rest removed.