SQL语句错误: select a.content from jy_ as a where a.type='业务范围'

错误信息: Table 'jinying.jy_' doesn't existSQL语句错误: select a.title,a.content,a.author,a.classid,a.addtime,a.hit,a.tag,a.photo,a.photo1 from jy_ as a where a.type=''

错误信息: Table 'jinying.jy_' doesn't exist