select top 10 * from news where BigClassName = 'AAAAA' or BigClassName='BBBBB' or BigClassName='CCCCC' order by id desc
只要是AAAAA或者BBBBB或者CCCCC里面的内容都能抓到!
select top 10 * from news where BigClassName='AAAAA' and BigClassName='BBBBB' and BigClassName='CCCCC' order by id desc"