PHP and Toad Oracle query results are different

Question

When using the same query, same user DB credentials, with Toad for Oracle and then with PHP function oci_fetch_assoc, data array returned by oci_fetch_assoc is missing in a few columns, and a few columns are missing alltogether. All expected is present in Toad results.

I googled and searched here, no solution.

Toad is using Instant Client - 11.2.0.1.0

My PHP oci8 information

OCI8 Support - enabled

Version 1.4.6

Revision $Revision: 313688 $

Active Persistent Connections 0

Active Connections 0

Oracle Run-time Client Library Version 11.2.0.2.0

Oracle Instant Client Version 10.2

Temporary Lob support enabled

Collections support enabled

Answer 1

如果您在PHP和Toad中运行完全相同的查询，并且它们返回不同的结果，则唯一的结论是您的PHP忽略了结果集的几列。

Answer 2

When you use oci_fetch_assoc, only the fields with a value that is not NULL will be returned. To work with this I fetch the columnnames with this code:

for ($i=1; $i<=oci_num_fields($parsed); $i++)
{
    $col = oci_field_name($parsed, $i);
    $columnNames[] = $col; // store column names in array
}

then my fetch function looks something like this:

function fetch()
{
    global $columnNames; // (I actually have a Query class so I use $this->columnNames)
    $row = oci_fetch_array($parsed, OCI_ASSOC);
    foreach ($columnNames as $colname)
        $row[$colname] = isset($row[$colname]) ? $row[$colname] : null;

    return $row;
}

edit: Another (less likely) possibility is that the missing columns are CLOBS. You need to fetch those with the OCI_RETURN_LOBS flag (see oci_fetch_array )