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 (
ZSTD compression algorithm introduced in SQL Server 2025 Performance impact of compressing backups Show 5 more 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...
BACKUP DATABASE <database_name> TO {DISK\|TAPE\|URL} WITH COMPRESSION (ALGORITHM = ZSTD) 使用ZSTD 算法进行压缩备份。 BACKUP DATABASE <database_name> TO {DISK\|TAPE\|URL} WITH COMPRESSION (ALGORITHM = ZSTD, LEVEL = HIGH) 使用压缩级别 HIGH 的 ZSTD 算法进行压缩备份。 DESCRIPTION = { ...
You can further reduce the size of columnstore data by configuring an additional compression called archival compression. To perform archival compression, SQL Server runs the Microsoft XPRESS compression algorithm on the data. Add or remove archival compression by using the following data compression ...
That way, the memory that is paged to disk is based on the OS algorithm and requirements and not the hypervisor. Memory will be reclaimed from VMs that have less proportional shares and will be given to the VMs with more proportional shares. This is an intelligent way for the hypervisor ...
SQL Server 2022 (16.x) introducesALGORITHM, which identifies a compression algorithm for the operation. For more information, seeBackup COMPRESSION. For more information, seeRestore operations Restore from URL URL is the format used to specify the location and the file name for Microsoft Azure Blob...
For more information about the preallocation algorithm, see Backup compression (SQL Server).Scope: Global only. 3051 Enables SQL Server Backup to URL logging for page blobs in Azure Storage only. Logging writes to a specific error log file. For more information, see SQL Server Backup to URL ...
DatabaseEncryptionKeyAlgorithm DatabaseEncryptionKeyStatement DatabaseMirroringEndpointRole DatabaseOption DatabaseOptionKind DataCompressionLevel DataCompressionOption DataCompressionOption 생성자 속성 메서드 DataModificationSpecification DataModificationStatement DataModificationTableReference DataRetentionT...
SecurityRC4 and DESX encryption algorithmsUse another algorithm such as AES.DESX algorithm238 SET optionsSET FMTONLYsys.dm_exec_describe_first_result_set (Transact-SQL),sys.dm_exec_describe_first_result_set_for_object (Transact-SQL),sp_describe_first_result_set (Transact-SQL), andsp_describe_...
Encrypt (for Oracle Database Release 10.2 and higher, and only if the Transparent Data Encryption feature is enabled for the database): Displays a dialog box in which you specify a supported encryption algorithm to be used for encrypting all data in the column. Current data and subsequently in...