Backup compression with TDE Starting with SQL Server 2016 (13.x), settingMAXTRANSFERSIZElarger than 65536 (64 KB)enables an optimized compression algorithm forTransparent Data Encryption (TDE)encrypted databases that first decrypts a page, compresses it, and then encrypts it again. IfMAXTRANSFER...
本主题说明如何使用 SQL Server Management Studio 或 Transact-SQL 在 SQL Server 中查看或配置 SQL Server Management Studio backup compression default TransactSQL服务器配置选项。backup compression default选项确定默认情况下服务器实例是否创建压缩的备份。 当...
在SQL Server20908里创建一份被压缩了的备份很简单——你能用的T-SQL语言或者是仅包括COMPRESSION这个词的WITH子句。如果使用SQL Server Management Studio,就只需要在备份数据库会话里Options选择键上选择“压缩备份”这一选项。以下就是备份AdventureWorks数据库的示例。 压缩备份 BACKUP DATABASE [AdventureWorks] TO DI...
For information about how to work with SQL Server counters, see Using SQL Server Objects. Configuration At installation, backup compression is off by default. The default behavior for backup compression is defined by the backup compression default Optionserver-level configuration option. You can ...
* SQL Server * SQL 托管实例 分析平台系统(PDW) SQL Server 备份完整的 SQL Server 数据库以创建数据库备份,或者备份数据库的一个或多个文件或文件组以创建文件备份 (BACKUP DATABASE)。 另外,在完整恢复模式或大容量日志恢复模式下备份数据库事务日志以创建日志备份 (BACKUP LOG)。 语法 syntaxsql 复制 ...
通过在BACKUPTransact-SQL 命令中指定WITH COMPRESSION (ALGORITHM = ZSTD)选项以进行特定备份。 通过将备份压缩算法服务器配置选项设置为 3。 对于使用该WITH COMPRESSION选项的所有备份,此选项将默认备份压缩算法设置为 ZSTD。 备注 ZSTD 算法目前为预览版,仅在 SQL Server 2025 (17.x) 预览版中可用。
Applies to: SQL Server This article describes the compression of SQL Server backups, including restrictions, performance trade-off of compressing backups, the configuration of backup compression, and the compression ratio. Backup compression is supported on SQL Server editions: Enterprise, Standard, ...
In Object Explorer, right-click a server and select Properties. Select the Database settings node. Under Backup and restore, Compress backup shows the current setting of the backup compression default option. This setting determines the server-level default for compressing backups, as follows: If ...
这是为了节省磁盘空间, 代价就是没办法还原到任意时间点 (这个代价也太大了吧). 通过 setting 我们可以修改掉这个默认设置. Shrink log file SQL server 会把所有操作记入在 database_log.ldf 里头, 这个 file 会越来越大. 而当我们做了上述的 backup 以后, 这个 file 就没啥用了. 我们可以定期去 shrink ...
[;] --Back up all the databases on an instance of SQL Server (a server) ALTER SERVER CONFIGURATION SET SUSPEND_FOR_SNAPSHOT_BACKUP ON [;] BACKUP SERVER TO <backup_device> [ ,...n ] [ <MIRROR TO clause> ] [ next-mirror-to ] [ WITH { METADATA_ONLY | <general_WITH_options> [...