INSERT INTO comment ( note_id, author_id, parent_id, content, like_count, reply_count, created_at, updated_at ) VALUES ( #{noteId}, #{authorId}, #{parentId}, #{content}, #{likeCount}, #{replyCount}, #{createdAt}, #{updatedAt} ) UPDATE comment content = #{content}, like_count = #{likeCount}, reply_count = #{replyCount}, updated_at = CURRENT_TIMESTAMP WHERE comment_id = #{commentId} DELETE FROM comment WHERE comment_id = #{commentId} SELECT * FROM comment WHERE comment_id = #{commentId} SELECT * FROM comment AND note_id = #{params.noteId} AND parent_id = #{params.parentId} AND author_id = #{params.authorId} ORDER BY created_at DESC LIMIT #{pageSize} OFFSET #{offset} SELECT COUNT(*) FROM comment AND note_id = #{params.noteId} AND parent_id = #{params.parentId} AND author_id = #{params.authorId} UPDATE comment SET like_count = like_count + 1 WHERE comment_id = #{commentId} UPDATE comment SET like_count = like_count - 1 WHERE comment_id = #{commentId} AND like_count > 0 UPDATE comment SET reply_count = reply_count + 1 WHERE comment_id = #{commentId} UPDATE comment SET reply_count = reply_count - 1 WHERE comment_id = #{commentId} AND reply_count > 0