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From: andrew dot x dot dear at jpmchase dot com
Subject: How to detect state CS_ROW_FAIL when using ct_fetch
Date: Jun 9 2008 4:35PM

Hello. I'm using the fairly standard code structure to process results 
with Sybase::CTlib. eg something like this:

    while($dbh->ct_results($restype) == CS_SUCCEED) {
        if($restype == CS_CMD_FAIL) {
            warn "Command failed!";
        next unless $dbh->ct_fetchable($restype);
        while(@data = $dbh->ct_fetch) {
            print "@data\n";

After successfully processing some initial rows from the result set, it is 
possible for errors to be received on a row within the result set, the 
result set would then carry on with useful rows of data. Within open 
client, ct_fetch returns a CS_RETCODE (of CS_ROW_FAIL) which would 
indicate what has happened. However within Sybase::CTlib, ct_fetch returns 
the empty array for a failed row exactly as it returns the empty array 
when there are no more results within this result set.

Do you know how I can detect the difference between CS_ROW_FAIL and the 
end of the result set?

Thanks for any help,

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