讓PHP讀取我的postgres select語句？

Question

我有一個由我需要編輯的其他人構建的應用程序。有一個代碼區域，我找不到正確的語法......有人可以請幫忙。

Postgres裏的select語句是這樣的：

SELECT collection|| '/' ||color AS collection 
FROM table 
WHERE series = 'random number' <-- this is controlled by an array in the php 

在PHP

現有的代碼如下所示：

$tableName = $db->getOne('SELECT collection FROM item_series WHERE series = ?', array($series['marriage_1'])); 
}else{$tableName = $series['marriage_1'];} 

我已經試過這一點，但它不工作：

$tableName = $db->getOne('SELECT collection, ".'/'.", color AS collection FROM item_series WHERE series = ?', array($series['marriage_1'])); 
}else{ 
$tableName = $series['marriage_1'];} 

請幫我找了幾個小時的答案！

Answer 1

難道不是這個嗎？

$db->getOne('select collection || \'/\' || color as collection ...', ...); 

或者這個？

$db->getOne("select collection || '/' || color as collection ...", ...); 

你嘗試：

'SELECT collection, ".'/'.", color AS collection FROM item_series WHERE series = ?' 

就這樣結束了對SQL數據庫：

SELECT collection, "/", color AS collection FROM item_series ... 

和PostgreSQL不會生氣與您嘗試使用雙引號的字符串字面意思，它會認爲你試圖訪問一個名爲/的列。此外，你想連接，你想使用|| SQL操作符。