按今天的日期過濾 Postgres 和 PHP

Question

目前是 Postgres 和 php 的新手 在獲取要顯示的當前日期樹總數方面需要幫助

我只需要在當前日期計算當前樹，但似乎無法使其工作。

 $sql = "SELECT trees.tree_type, tree_solds.transaction_id, 
                tree_solds.actual_height, tree_solds.selling_height, 
                tree_solds.sub_total,transactions.date_purchased 
         FROM tree_solds
         LEFT JOIN trees on tree_solds.tree_id = trees.id
         LEFT JOIN transactions on transactions.id = tree_solds.transaction_id
         WHERE user_id = 8";

 $res = pg_query($sql);
 $count = pg_num_rows($res);

 echo $count;

Answer 1

我不知道我是否理解問題所在，但是既然您說“當前日期”，我猜您只是缺少按日期過濾的過濾器嗎？

 $sql = "SELECT trees.tree_type, tree_solds.transaction_id, 
            tree_solds.actual_height, tree_solds.selling_height, 
            tree_solds.sub_total,transactions.date_purchased 
     FROM tree_solds
     LEFT JOIN trees on tree_solds.tree_id = trees.id
     LEFT JOIN transactions on transactions.id = tree_solds.transaction_id
     WHERE user_id = 8 AND transactions.date_purchased BETWEEN current_date AND current_date + INTERVAL '1 DAY'";