id,user_id,item_id,content,addTime
#{id},#{userId},#{itemId},#{content},#{addTime}
user_id = #{userId},
item_id = #{itemId},
content = #{content},
addTime = #{addTime}
and id = #{id}
and user_id = #{userId}
and item_id = #{itemId}
and content = #{content}
and addTime = #{addTime}
insert into comment(
) values(
)
delete from comment where id=#{id}
delete from comment where 1=1
delete from comment where 1=1
update comment
where 1=1
update comment
where id=#{id}
update comment
user_id = #{item.userId},
item_id = #{item.itemId},
content = #{item.content},
addTime = #{item.addTime}
where 1=1
and id = #{item.id}
${sql}
${sql}