delete from `bl_business_opportunities_clue` user_id = #{userId} and attention_id = #{attentionId} select count(*) from `bl_business_opportunities_clue` user_id = #{userId} select * from `bl_business_opportunities_clue` user_id = #{userId} and attention_id = #{attentionId} select * from `bl_business_opportunities_clue` user_id = #{userId} and (contact like concat('%',#{text},'%') or telephone like concat('%',#{text},'%'))