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如何缩小sql server日志文件
可以将日志文件缩小到自己想要的大小了。把代码copy到查询分析器里，，然后修改其中的3个参数(数据库教程名，日志文件名，和目标日志文件的大小)，运行即可(我已经用过多次了)
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set nocount on
declare @logicalfilename sysname,
@maxminutes int,
@newsize int
use marias -- 要操作的数据库名
select @logicalfilename = "marias_log", -- 日志文件名
@maxminutes = 10, -- limit on time allowed to wrap log.
@newsize = 100 -- 你想设定的日志文件的大小(m)
-- setup / initialize
declare @originalsize int
select @originalsize = size
from sysfiles
where name = @logicalfilename
select "original size of " + db_name() + " log is " +
convert(varchar(30),@originalsize) + " 8k pages or " +
convert(varchar(30),(@originalsize*8/1024)) + "mb"
from sysfiles
where name = @logicalfilename
create table dummytrans
(dummycolumn char (8000) not null)
declare @counter int,
@starttime datetime,
@trunclog varchar(255)
select @starttime = getdate(),
@trunclog = "backup log " + db_name() + " with truncate_only"
dbcc shrinkfile (@logicalfilename, @newsize)
exec (@trunclog)
-- wrap the log if necessary.
while @maxminutes > datediff (mi, @starttime, getdate()) -- time has not expired
and @originalsize = (select size from sysfiles where name = @logicalfilename)
and (@originalsize * 8 /1024) > @newsize
begin -- outer loop.
select @counter = 0
while ((@counter <@originalsize / 16) and (@counter <50000))
begin -- update
insert dummytrans values ("fill log")
delete dummytrans
select @counter = @counter + 1
end
exec (@trunclog)
end
select "final size of " + db_name() + " log is " +
convert(varchar(30),size) + " 8k pages or " +
convert(varchar(30),(size*8/1024)) + "mb"
from sysfiles
where name = @logicalfilename
drop table dummytrans
set nocount off