MySQL语言编辑内容为: SELECT goods_id AS 商品ID,goods_name AS 商品名称, convert(char(2),sales_sum) + '个' AS 销售数量, FROM goods 报错信息为: > 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'sales_sum) + '个' AS 销售数量, FROM goods' at line 2 |