php - PHP 和 MySQL 中的过程问题

Question

当我第一次运行我的程序时，我想创建以下过程:

$returnCusProcedure = "
    DELIMITER //
    CREATE PROCEDURE GetAllCustomers()
    BEGIN
    SELECT * FROM CUSTOMERS;
    END //
    DELIMITER ; ";

if(! $returnCusProcedure )
{
    die('Could not create procedure: ' . $conn->error);
}
else
{
    echo "Procedure created successfully<br/>";
}

它回显该过程已成功完成，但是当我在 MySQL 中调用该过程时，它返回该过程不存在，我是否遗漏了上面的内容？

Answer 1

您必须实际执行这些 SQL 语句。它会是这样的:

$cusProcedure = "
    CREATE PROCEDURE GetAllCustomers()
    BEGIN
    SELECT * FROM CUSTOMERS;
    END"; // <-- No need to change delimiter, at least in this case

$returnCusProcedure = $conn->query($cusProcedure); // <-- Executing SQL

if(! $returnCusProcedure )
{
    die('Could not create procedure: ' . $conn->error);
}
else
{
    echo "Procedure created successfully<br/>";
}