sql
case when 列 in (A,B) then '总数',这怎么改报错
case when 列 in (A,B) then '总数' end
case when 列 in (A,B) then ‘总数’ end as ‘总数’
case when 列A in(A,B) then 'AAA' else 'BBB' end
结尾用end结束