[英]Laravel: General error: 1615 Prepared statement needs to be re-prepared
[英]How to SELECT from a view in SQL? (General error: 1615 Prepared statement needs to be re-prepared)
更新:查詢工作正常如下: 當我從視圖中選擇時,只會出現該錯誤。
$query = "
SELECT ModuleID, ModuleName, Credits, Lecturer, Room, EmployeeID, Forename, Surname, RoomID, RoomCode
FROM ((Module
INNER JOIN Employee ON Module.Lecturer = Employee.EmployeeID)
INNER JOIN Room ON Module.Room = Room.RoomID)
";
$result = $DBH->prepare($query);
$result->execute();
$data = $result->fetchAll();
嘗試SELECT * FROM
創建的視圖中SELECT * FROM
時收到以下錯誤。 (從表中選擇效果很好)。
消息為“ SQLSTATE [HY000]”的未捕獲異常“ PDOException”:常規錯誤:1615需要重新准備准備好的語句”
使用時我沒有問題
SELECT * FROM Module
這是我的查詢:
$query = "
SELECT * FROM module_info
";
$result = $DBH->prepare($query);
$result->execute();
$data = $result->fetchAll();
我創建的視圖:
CREATE VIEW module_info
AS
SELECT ModuleID, ModuleName, Credits, Lecturer, Room, EmployeeID, Forename, Surname, RoomID, RoomCode
FROM ((Module
INNER JOIN Employee ON Module.Lecturer = Employee.EmployeeID)
INNER JOIN Room ON Module.Room = Room.RoomID);
這種情況下的解決方案如下:
在連接文件中,以下行
PDO::ATTR_EMULATE_PREPARES => false,
需要像這樣更改:
PDO::ATTR_EMULATE_PREPARES => true,
在其他情況下,解決方案似乎是增加table_definitition_cache
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.