mysql指定字段去重
select theme_id, theme_name,theme_color,COUNT(DISTINCT theme_name) from bkgmag GROUP BY theme_name 利用COUNT函数和Group By 去重字段
select theme_id, theme_name,theme_color,COUNT(DISTINCT theme_name) from bkgmag GROUP BY theme_name 利用COUNT函数和Group By 去重字段