ZF-4894: Zend_Db_Adapter_Db2 does not work with iSeries (AS/400)

Issue Type: Bug Created: 2008-11-10T08:23:54.000+0000 Last Updated: 2011-12-08T08:01:15.000+0000 Status: Resolved Fix version(s): - 1.7.3 (19/Jan/09)

Reporter: Miroslav Vasko (zemiak) Assignee: Satoru Yoshida (satoruyoshida) Tags: - Zend_Db_Adapter_Db2

Related issues: Attachments:


The reason is the sql statement in the describeTable() method. If you change it to our version, it works. We have created a modified version of Zend_Db_Adapter_Db2 called Zend_Db_Adapter_Db2iseries, that overloads this method, but I think, that some kind of option in Zend_Db_Adapter_Db2 will be better. We are using ZF 1.5.3 now, so it is possible, that it will be necessary to adapt the code for 1.7.x

It seems, that this will not work for z/OS version of DB2, only for AS400

This is our sql code:

    $sql = "SELECT DISTINCT c.table_schema, c.table_name, c.column_name, c.ordinal_position,
          c.data_type, c.column_default, c.is_nullable, c.length, c.numeric_scale,
          c.is_identity, tc.type AS tabconsttype, k.colseq
        FROM qsys2.syscolumns c
          LEFT JOIN (qsys2.syskeys k JOIN qsys2.syscst tc
            ON (k.index_schema = tc.table_schema
              AND k.index_name = tc.table_name
              AND tc.type = 'PRIMARY KEY'))
          ON (c.table_schema = k.index_schema
            AND c.table_name = k.index_name
            AND c.column_name = k.column_name)
          WHERE "
        . $this->quoteInto('UPPER(c.table_name) = UPPER(?)', $tableName);
    if ($schemaName) {
        $sql .= $this->quoteInto(' AND UPPER(c.table_schema) = UPPER(?)', $schemaName);
    $sql .= " ORDER BY c.ordinal_position";


Posted by Wil Sinclair (wil) on 2008-12-04T13:57:06.000+0000

Can't you close this with fix for 1.7.0, Ralph?

Posted by old of Satoru Yoshida ( on 2008-12-08T01:44:25.000+0000

Solved in SVN r13093

Posted by Ralph Schindler (ralph) on 2008-12-15T09:25:47.000+0000

Satoru, the changes you applied broke unit tests on i5 for OS400 on my v5r4. I am gonna update, then can you test on your i5?

Will keep you posted.


Posted by old of Satoru Yoshida ( on 2008-12-15T17:43:23.000+0000

Hi, Ralph. Ok , I will test on my i5 after your commits.

Posted by old of Satoru Yoshida ( on 2009-04-03T19:39:29.000+0000

I schedule to work on this in May/2009.

Posted by old of Satoru Yoshida ( on 2009-05-08T01:15:06.000+0000

I confirm this issue would not be shown in following test code. This seems to be resolved in 1.7.3 .

<pre class="highlight">
class Db2Controller extends Zend_Controller_Action {
    protected $_db;
    public function init() {
        $this->_db = Zend_Db::factory('Db2',
            'host' => '',
            'username' => 'YOUR USER',
            'password' => 'YOUR PASS',
            'dbname'   => 'DSPRDBDIRE VALUE')

    public function indexAction() {
        $result = $this->_db->fetchAll($sql, 'T001');

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