使用Oracle和PHP：在SQL Developer中有效，但是PHP文件导致ORA-00900：无效的语句

Using Oracle and PHP: Works in SQL Developer but PHP file results ORA-00900: Invalid Statement

当我从上一篇文章"使用Oracle将三张表与PIVOT合并为一张"中获取代码，并在SQL Developer中单击"运行脚本"时，一切工作都很好，但是当我尝试从PHP执行相同的脚本时我收到文件" ORA-00900无效的SQL语句"-错误。 SQL Developers" Run Statement"也无法执行代码。看来我的代码不是使用" SQL语句"语法？

我的用于将sql脚本放入变量的PHP代码：

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$sql ="variable x REFCURSOR
DECLARE
exam_ids VARCHAR2(255);
BEGIN
SELECT
LISTAGG(''''
|| exam_id
|| ''' AS "'
|| exam_name
|| '"',',') WITHIN GROUP(
ORDER BY
exam_id ASC
)
INTO exam_ids
FROM
exam;

OPEN :x FOR 'SELECT
*
FROM
(
SELECT
u.user_id,
u.user_name,
e.exam_id,
eu.exam_date
FROM
users u
LEFT JOIN exam_user eu ON u.user_id = eu.user_id
LEFT JOIN exam e ON e.exam_id = eu.exam_id
ORDER BY
u.user_id
)
PIVOT ( MAX ( exam_date )
FOR exam_id
IN ( ' || EXAM_IDS || ' )
)
ORDER BY
1';
END;
/

print x";

然后我将$ sql变量传递给函数以得到结果：

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function getSQLResult($sql, $conn) {
$stmt = OCIParse($conn, $sql);

if( $stmt === false ) {
errorShutdown(__('...'), __('...'));
die();
} else {
//Executes a statement
if (OCIExecute($stmt)) {
return $stmt;
}
else {
$err = oci_error($stmt);
echo '[cc lang="php"]';
print_r($err);
echo '

\\';
返回false；
}
}
}

那么有人可以告诉我如何重构代码吗？

感谢您的帮助！

相关讨论

我想我明白了。似乎需要从该PL / SQL脚本中创建一个过程：

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CREATE OR REPLACE PROCEDURE getExamStatus(RC OUT SYS_REFCURSOR) AS
exam_ids VARCHAR2(255);
BEGIN
SELECT
LISTAGG(''''
|| exam_id
|| ''' AS "'
|| exam_name
|| '"',',') WITHIN GROUP(
ORDER BY
exam_id ASC
)
INTO exam_ids
FROM
exam;

OPEN rc FOR 'SELECT
*
FROM
(
SELECT
u.user_id,
u.user_name,
e.exam_id,
eu.exam_date
FROM
users u
LEFT JOIN exam_user eu ON u.user_id = eu.user_id
LEFT JOIN exam e ON e.exam_id = eu.exam_id
ORDER BY
u.user_id
)
PIVOT ( MAX ( exam_date )
FOR exam_id
IN ( ' || EXAM_IDS || ' )
)
ORDER BY
1';
END;
/

然后在数据库中运行该过程。之后，在PHP文件中，我不得不重构sql语句：

1	$sql ="BEGIN getExamStatus(:rc); END;";

函数：

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function getSQLResult($sql, $conn) {
$stmt = oci_parse($conn, $sql);

if( $stmt === false ) {
errorShutdown(__('...'), __('...'));
die();
} else {
$rc = oci_new_cursor($conn);
oci_bind_by_name($stmt, ':rc', $rc, -1, OCI_B_CURSOR);
if(!oci_execute($stmt)) {
return false;
//return oci_error($stmt);
}
if(!oci_execute($rc)) {
return false;
//return oci_error($stmt);
}
$results = array();
while (($row = oci_fetch_array($rc, OCI_ASSOC+OCI_RETURN_NULLS)) != false) {
$results[] = $row;
}
oci_free_statement($stmt);
oci_free_statement($rc);
return $results;
}
}