insert into comment(id,productId,userId,type,content,createTime) values(null,#{productId},#{userId},#{type},#{content},#{createTime}) update comment set type = #{type},content = #{content} where id = #{id} select c.id as c_id,c.productId as c_productId,c.userId as c_userId,c.type as c_type,c.content as c_content,c.createTime as c_createTime, p.id as p_id,p.name as p_name,p.imageUrl as p_imageUrl,p.price as p_price, a.id as a_id,a.name as a_name from comment c,product p,account a where c.productId = p.id and c.userId = a.id and p.name like '%${productName}%' and p.id = #{productId} and a.name like '%${username}%' and c.userId = #{userId} and c.type = #{type} order by ${orderBy} ${sort} limit #{offset},#{pageSize} select count(*) from comment c,product p,account a where c.productId = p.id and c.userId = a.id and p.name like '%${productId}%' and a.name like '%${username}%' and c.type = #{type} select * from comment where id = #{value} delete from comment where id in(${value})