thinkphp 区间查询 组合查询 复合查询 动态查询 SQL查询

区间查询 默认使用AND 在最后面元素加上OR  SELECT * FROM `weibo_user` WHERE ( `id` > 1 OR `id` < 3 ) $map[‘id‘]=array(   array(‘gt‘,1),   array(‘lt‘,3),     ‘OR‘ ); 组合查询  SELECT * FROM `weibo_user` WHERE `id` = 1 OR ( username = "bnbbs" AND email like "%bnbb%" ) $map[‘id‘]=array(‘eq‘,1); $map[‘_string‘]=‘username = "bnbbs" AND email like "%bnbb%"‘; $map[‘_logic‘]="OR"; 请求字符串查询 $map[‘id‘]=array(‘eq‘,1); $map[‘_query‘]=‘username=bnbbs&_logic=OR‘; $map[‘_logic‘]=‘OR‘; 复合查询  SELECT * FROM `weibo_user` WHERE `id` = 1 OR ( `id` = 2 ) $map[‘id‘]=array(‘eq‘,1); $where[‘id‘]=array(‘eq‘,2); $map[‘_complex‘]=$where; $map[‘_logic‘]=‘OR‘; 统计查询 count() SELECT COUNT(*) AS tp_count FROM `weibo_user` LIMIT 1 最大查询 max(id) SELECT MAX(id) AS tp_max FROM `weibo_user` LIMIT 1 最小查询 min(id) SELECT MIN(id) AS tp_min FROM `weibo_user` LIMIT 1 平均值查询 avg(id)  SELECT AVG(id) AS tp_avg FROM `weibo_user` LIMIT 1 求和查询 sum(id) SELECT SUM(id) AS tp_sum FROM `weibo_user` LIMIT 1 动态查询 getByField(value) SELECT * FROM `weibo_user` WHERE `id` = 1 LIMIT 1getByField(value) SELECT * FROM `weibo_user` WHERE `username` = ‘bnbbs‘ LIMIT 1 getFieldByField(value) SELECT `id` FROM `weibo_user` WHERE `username` = ‘bnbbs‘ LIMIT 1 SQL查询 query($sql)只读 execute($sql)只写

 var_dump($user->query(‘select * from weibo_user‘));