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...
Assume that you are using Microsoft SQL Server 2016 and Microsoft SQL Server 2017. You enable Transparent Data Encryption (TDE) on your database, and then you back up the database by using compression. When you try to restore the database from this backup and verify the backup file...
T-SQL创建事务日志备份 使用T-SQL语句来创建事务日志的备份方法如下: USE Master GO BACKUP LOG [AdventureWorks2008R2] TO DISK = N'C:\temp\AdventureWorks2008R2_log_201711122201.trn' with compression,stats=1; GO BACKUP LOG [AdventureWorks2008R2] TO DISK = N'C:\temp\AdventureWorks2008R2_log_2017111...
For information about how to work with SQL Server counters, see Use SQL Server Objects.Calculate the compression ratio of a compressed backupTo calculate the compression ratio of a backup, use the values for the backup in the backup_size and compressed_backup_size columns of the backupset ...
Transact-SQL For a given backup, you can use either WITH NO_COMPRESSION or WITH COMPRESSION in a BACKUP statement. For a log shipping configuration, you can control the backup compression behavior of log backups by using sp_add_log_shipping_primary_databasesp_change_log_shipping_primary_data...
For information about how to work with SQL Server counters, see Use SQL Server Objects. Calculate the compression ratio of a compressed backup To calculate the compression ratio of a backup, use the values for the backup in the backup_size and compressed_backup_size columns of the backupset ...
Following is a sample Transact-SQL statement to encrypt the backup file: SQL Copy BACKUP DATABASE [MYTestDB] TO DISK = N'C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\Backup\MyTestDB.bak' WITH COMPRESSION, ENCRYPTION ( ALGORITHM = AES_256, SERVER CERTIFICATE = BackupEn...
with a value > 64K, the provided value will be honored. In other words, SQL Server will never automatically decrease the value, it will only increase it. If you need to back up a TDE encrypted database withMAXTRANSFERSIZE = 65536, you must specifyWITH NO_COMPRESSIONor ensure that the...
Use SQL Server Management Studio View or configure the backup compression default option 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. Thi...
BACKUP DATABASE <database_name> TO DISK WITH COMPRESSION (ALGORITHM = QAT_DEFLATE) DESCRIPTION = { 'text' | @text_variable } Specifies the free-form text describing the backup set. The string can have a maximum of 255 characters. NAME = { backup_set_name | @backup_set_var } Speci...