22,298
社区成员
发帖
与我相关
我的任务
分享差异备份
---------------------------------------------
(1)基于完全备份。
(2)备份自最近一次完全备份以来的所有数据库改变。
(3)恢复时,只应用最近一次完全备份和最新的差异备份。
-----------------------------------------------
backup database d2 to bak2 with init,name='d2_full' --差异备份,第一次备份时应做完全备份
create table b1(c1 int not null,c2 char(10) not null)
backup database d2 to bak2 with differential,name='d2_diff1'
insert b1 values(1,'a')
backup database d2 to bak2 with differential,name='d2_diff2'
insert b1 values(2,'b')
backup database d2 to bak2 with differential,name='d2_diff3'
insert b1 values(3,'c')
backup database d2 to bak2 with differential,name='d2_diff4'
restore headeronly from bak2
----------------------------------------------------------------------