thinkphp的sql查询语句

thinkphp关联查询（多表查询）

多字段查询 $m->field('user,passwd,uptime,upby')->select();

限制行数查询  $m->limit('10')->select();

THINKPHP 中关联查询（多表查询）可以使用 table() 方法或和join方法，请看示例：

1、table()

$list = $user->table('user_status stats, user_profile profile')->where('stats.id = profile.typeid')->field('stats.id as id, stats.display as display, profile.title as title,profile.content as content')->order('stats.id desc' )->select();

2、join()

$user = new Model('user');

$list = $user->join('RIGHT JOIN user_profile ON user_stats.id = user_profile.typeid' );

3、原生查询

$Model = new Model();

$sql = 'select a.id,a.title,b.content  from think_test1 as a, think_test2 as b where a.id=b.id '.$map.' order by a.id  '.$sort.' limit '.$p->firstRow.','.$p->listRows;
$voList = $Model->query($sql);