04-24 08:11 阅读 275

laravel join关联查询代码实例

这篇文章主要介绍了laravel join关联查询代码实例，join联查是写sql查询的时候常用也是高效的一种查询，文中是结合laravel框架来使用联查，有感兴趣的同学可以学习下

laravel join关联查询

1、两表关联

$fbaInventoryTb = (new \App\Model\Amz\Fba\InventoryReport)->getTable();

$productTb = (new \App\Model\Amz\Product)->getTable();

$twInventoryTb = (new \App\Model\TWUsa\TwusaInventory)->getTable();

$qry = \DB::table($fbaInventoryTb);

  $qry->select($fbaInventoryTb.'.*')

   ->where($fbaInventoryTb.'.ec_id',1)

   ->leftjoin($productTb, $productTb.'.sku', '=', $fbaInventoryTb.'.sku')

   ->addSelect($productTb.'.id as goods_id',$productTb.'.sku as mfn', $productTb.'.ec_id as pro_ec_id');

//  ->where($productTb.'.ec_id',1); //不应该在此处排除 product 表的ec_id

//  return $qry->toSql();

  $res = $qry->get()->whereIn('pro_ec_id',[1, null] );//leftJion 最后排除不符合条件的

2、三表关联

$qry = \DB::table($twInventoryTb);

  $qry->select($twInventoryTb.'.*')

   ->leftjoin($fbaInventoryTb, $fbaInventoryTb.'.fnsku', '=', $twInventoryTb.'.product_sn')

   ->addSelect($fbaInventoryTb.'.ec_id')

   ->where($fbaInventoryTb.'.ec_id',1);

  $qry->LeftJoin($productTb, $productTb.'.sku', '=', $fbaInventoryTb.'.sku')

//   ->where($productTb.'.ec_id',1)

   ->addSelect($productTb.'.id as goods_id', $productTb.'.sku as mfn', $productTb.'.ec_id as pro_ec_id');

  $res = $qry->get()->whereIn('pro_ec_id', [1, null]);

到此这篇关于laravel join 关联查询代码实例的文章就介绍到这了

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