laravel join关联查询代码实例

laravel join关联查询

1、两表关联

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$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

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$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]);

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原文链接：https://blog.csdn.net/weixin_42390015/article/details/89531474