在sql2005中，还原增量数据备份文件时，出现“无法还原日志备份或差异备份，因为没有文件可用于前滚”是怎么回事
烦请各位大侠指教

[解决办法]

SQL code

---------------------------------- restore headeronly from bak2              --从差异备份中恢复 restore database d2 from bak2 with file=1,norecovery    restore database d2 from bak2 with file=5,recovery ----------------------------------
[解决办法]
探讨

SQL code----------------------------------restore headeronlyfrom bak2--从差异备份中恢复restoredatabase d2from bak2withfile=1,norecoveryrestoredatabase d2from bak2withfile=5?-

[解决办法]
探讨

SQL code
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restore headeronly from bak2              --从差异备份中恢复 
restore database d2 from bak2 with file=1,norecovery    
rest……