这数据是怎么了，什么意思？

Incorrect key file for table 'C:WINDOWSTEMP#sql_508_0.MYI'; try to repair it
Select * from ***_ecms_mert where checked=1 and id<>36236 and ( keyboard like '%dffhg%' or keyboard like '% silkscreen%') and classid=357 order by rand() desc limit 23000