SQL Serverbackup
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
SQL
复制
--Backing Up a Whole Database
BACKUP DATABASE { database_name | @database_name_var }
TO <backup_device> [ ,...n ]
[ <MIRROR TO clause> ] [ next-mirror-to ]
[ WITH { DIFFERENTIAL
| <general_WITH_options> [ ,...n ] } ]
[;]
--Backing Up Specific Files or Filegroups
BACKUP DATABASE { database_name | @database_name_var }
<file_or_filegroup> [ ,...n ]
TO <backup_device> [ ,...n ]
[ <MIRROR TO clause> ] [ next-mirror-to ]
[ WITH { DIFFERENTIAL | <general_WITH_options> [ ,...n ] } ]
[;]
--Creating a Partial Backup
BACKUP DATABASE { database_name | @database_name_var }
READ_WRITE_FILEGROUPS [ , <read_only_filegroup> [ ,...n ] ]
TO <backup_device> [ ,...n ]
[ <MIRROR TO clause> ] [ next-mirror-to ]
[ WITH { DIFFERENTIAL | <general_WITH_options> [ ,...n ] } ]
[;]
--Backing Up the Transaction Log (full and bulk-logged recovery models)
BACKUP LOG
{ database_name | @database_name_var }
TO <backup_device> [ ,...n ]
[ <MIRROR TO clause> ] [ next-mirror-to ]
[ WITH { <general_WITH_options> | \<log-specific_optionspec> } [ ,...n ] ]
[;]
<backup_device>::=
{
{ logical_device_name | @logical_device_name_var }
| { DISK
| TAPE
| URL } =
{ 'physical_device_name' | @physical_device_name_var | 'NUL' }
}
<MIRROR TO clause>::=
MIRROR TO <backup_device> [ ,...n ]
<file_or_filegroup>::=
{
FILE = { logical_file_name | @logical_file_name_var }
| FILEGROUP = { logical_filegroup_name | @logical_filegroup_name_var }
}
<read_only_filegroup>::=
FILEGROUP = { logical_filegroup_name | @logical_filegroup_name_var }
<general_WITH_options> [ ,...n ]::=
--Backup Set Options
COPY_ONLY
| { COMPRESSION | NO_COMPRESSION }
| DESCRIPTION = { 'text' | @text_variable }
| NAME = { backup_set_name | @backup_set_name_var }
| CREDENTIAL
| ENCRYPTION
| FILE_SNAPSHOT
| { EXPIREDATE = { 'date' | @date_var }
| RETAINDAYS = { days | @days_var } }
--Media Set Options
{ NOINIT | INIT }
| { NOSKIP | SKIP }
| { NOFORMAT | FORMAT }
| MEDIADESCRIPTION = { 'text' | @text_variable }
| MEDIANAME = { media_name | @media_name_variable }
| BLOCKSIZE = { blocksize | @blocksize_variable }
--Data Transfer Options
BUFFERCOUNT = { buffercount | @buffercount_variable }
| MAXTRANSFERSIZE = { maxtransfersize | @maxtransfersize_variable }
--Error Management Options
{ NO_CHECKSUM | CHECKSUM }
| { STOP_ON_ERROR | CONTINUE_AFTER_ERROR }
--Compatibility Options
RESTART
--Monitoring Options
STATS [ = percentage ]
--Tape Options
{ REWIND | NOREWIND }
| { UNLOAD | NOUNLOAD }
--Log-specific Options
{ NORECOVERY | STANDBY = undo_file_name }
| NO_TRUNCATE
--Encryption Options
ENCRYPTION (ALGORITHM = { AES_128 | AES_192 | AES_256 | TRIPLE_DES_3KEY } , encryptor_options ) <encryptor_options> ::=
SERVER CERTIFICATE = Encryptor_Name | SERVER ASYMMETRIC KEY = Encryptor_Name
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