Some queries of TP5

        // Unwanted   use app\index\model\Store;
        $res = model('store')->all();
        $res = collection($res)->toArray();
 
        // need   use app\index\model\Store;
        $res = store::select();
        $res = collection($res)->toArray();
 
        // 6、 ... and   You must specify the full table name 
        $res = Db::table('jh_store')->select();
        // Add false Only return sql sentence   Or in select prefix ->fetchSql(true)  Or use getlastsql()  perhaps ->buildSql();
        $res = Db::table('jh_store')->select(false);
        
        // 7、 ... and   Native query 
        $res = Db::query("select * from jh_store where store_id=127");
 
        // Eight can also be in table Method 
        $res = Db::table('tianxi.tx_admin')->where('admin_id>1')->select();
        //__ Upper case table name __ Write this instead of the full table name 
        $res2 = Db::table('__STORE__')->select();
        // Multi meter operation 
        $res3 = Db::field('a.store_id,a.title,b.store_goods_id,b.shop_goods_name')
            ->table(['jh_store'=>'a','jh_store_goods'=>'b'])
            ->limit(10)->select();
 
         $res4 = Db::field('a.store_id,a.title,b.store_goods_id,b.shop_goods_name')
         ->table('jh_store')->alias('a')
         ->join('jh_store_goods b','b.store_id=a.store_id','LEFT')
         ->limit(10)->select();
         $res5 = Db::table('jh_store_goods')->where('store_id','127')->limit(100)->select();
         Db::table('think_user')->alias(['think_user'=>'user','think_dept'=>'dept'])->join('think_dept','dept.user_id= user.id')->select();
        
        // Paging full query 
         $where['id']  = ['>',1];
         $where['mail']  = ['like','%[email protected]%'];
         $field = 'a.id,a.user_id,a.grades,a.is_involved,b.user_id,b.user_name,b.open_id,b.avatar,b.phone,c.user_id,c.alias_name';
         $join = [
             ['tx_user b', 'a.user_id=b.user_id', 'left'],
             ['tx_user_info c', 'a.user_id=c.user_id', 'left']
         ];
         $data['user'] = Db::table('tx_game_record')->alias('a')->join($join)->field($field)->where($where)->paginate(10);
         $data['page'] = $data['user']->render();
         $data['total'] = $data['user']->total();
        
        // You can use functions directly in queries 
        $res = Db::name('order_goods')->field('order_goods_id,SUM(price)')->select();
        // Field exclusion 
        Db::table('think_user')->field('user_id,content',true)->select();
        // Or use 
        Db::table('think_user')->field(['user_id','content'],true)->select();
 
        // Paging query 
        Db::name('order_goods')->page('1,10')->select();// Query the ten pieces of data on the first page 
        Db::name('order_goods')->page('2,10')->select();// Query the ten pieces of data on the second page 
        $res = Db::name('order_goods')->limit(10)->page(2)->select();// Query the ten pieces of data on the second page 
        
        // Merge the result set of two or more statements 
         $res = Db::field('name')->table('think_user')
         ->union('select name from think_user_1')
         ->union('select name from think_user_2')
         //->union(['SELECT name FROM think_user_1','SELECT name FROM think_user_2'])
         ->select();
        
        // Remove duplication 
        Db::name('user')->distinct(true)->field('name')->select();
        //SQL:select distinct name from user
 
        // to sql Statement add comments 
        Db::table('tp_user')
            ->comment(' Check the top ten students ')
            ->field('name')
            ->limit(10)
            ->order('id asc')
            ->select();