mssqlserver数据库备份语句

declare @exec_str varchar(60)
declare @exec_str_rar varchar(60)
declare @exec_str_diff varchar(60)
declare @exec_str_rar_diff varchar(60)
declare @DEL_DATE_4 char(8)
select @DEL_DATE_4 = convert(char(8),DATEADD(dd,-4,GETDATE()),112)
--处理数据库 SZC 4天 带增备
select @exec_str = 'del F:DB_BackXTOADB_FULL_' + @DEL_DATE_4 + '.bak'
select @exec_str_rar= 'del D:DB_Back_RARXTOADB_FULL_' + @DEL_DATE_4 + '.rar'
select @exec_str_diff = 'del F:DB_BackdifferentXTOADB_DIFF_' + @DEL_DATE_4 + '*.bak'
select @exec_str_rar_diff= 'del D:DB_Back_RARdifferentXTOADB_DIFF_' + @DEL_DATE_4 + '*.rar'
exec master..xp_cmdshell @exec_str, no_output
exec master..xp_cmdshell @exec_str_rar, no_output
exec master..xp_cmdshell @exec_str_diff, no_output
exec master..xp_cmdshell @exec_str_rar_diff, no_output
--处理数据库 SZCStatistics 4天
select @exec_str = 'del F:DB_BackXTOADBStatistics' + @DEL_DATE_4 + '.bak'
select @exec_str_rar= 'del D:DB_Back_RARXTOADBStatistics' + @DEL_DATE_4 + '.rar'
exec master..xp_cmdshell @exec_str, no_output
exec master..xp_cmdshell @exec_str_rar, no_output
--处理数据库 SZClog 4天
select @exec_str = 'del F:DB_BackXTOADBlog' + @DEL_DATE_4 + '.bak'
select @exec_str_rar= 'del D:DB_Back_RARXTOADBlog' + @DEL_DATE_4 + '.rar'
exec master..xp_cmdshell @exec_str, no_output
exec master..xp_cmdshell @exec_str_rar, no_output
GO

--2. 步骤二：数据库备份处理

select '备份开始时间： ' = getdate()
declare @RCL_DATE char(8)
select @RCL_DATE = convert(char(8),GETDATE(),112)
declare @PATH varchar(60)
--数据库 SZC 的备份--带差异备份
select @PATH = 'F:DB_Back' + 'XTOADB_FULL_' + @RCL_DATE + '.bak'
BACKUP LOG XTOADB WITH TRUNCATE_ONLY
BACKUP DATABASE XTOADB TO DISK = @PATH WITH INIT
--数据库 SZCStatistics 的备份
select @PATH = 'F:DB_Back' + 'XTOADBStatistics' + @RCL_DATE + '.bak'
--BACKUP LOG XTOADBStatistics WITH TRUNCATE_ONLY
--BACKUP DATABASE XTOADBStatistics TO DISK = @PATH
--数据库 SZClog 的备份
select @PATH = 'F:DB_Back' + 'XTOADBlog' + @RCL_DATE + '.bak'
--BACKUP LOG XTOADBlog WITH TRUNCATE_ONLY
--BACKUP DATABASE XTOADBlog TO DISK = @PATH
GO?>