insert into messages (sender, recipient, content, state, created) values (#{sender}, #{recipient}, #{content}, #{state}, #{created}) SELECT ch.sender, ch.recipient, ch.content, ch.state, ch.created, register.avatar AS avatar FROM messages ch JOIN register on ch.sender = register.username WHERE (ch.sender = #{sender} AND ch.recipient = #{recipient}) OR (ch.sender = #{recipient} AND ch.recipient = #{sender}) ORDER BY ch.created; update messages set state = #{state} where sender = #{recipient} and recipient = #{sender} and state = 0;