DevOps, CI/CD and Automation

I've been grappling this problem sometime, google doesn't help because all the results I get are pages with the same error.

Warning: oci_fetch(): 3 is not a valid oci8 statement resource in /home/dsk10/ugrad/bejhan/web_docs/facttable.php on line 21

Line 21 is: while(oci_fetch($SQL)) {

My loop functions correctly and fetches the results properly though. Here is my connect and creation of the statement:

$c = oci_connect("bejhan", "******");
$SQL = oci_parse($c, "SELECT TIMETRANSACTIONID, TO_CHAR(TDATETIME, 'YYYY-MM-DD HH24:MI:SS') AS PHPDATE, DURATION, TIMECODEDEFID, TEAM, MATERIALTYPE FROM c391.TimeTransactionData78 WHERE ROWNUM < 10 ORDER BY TDATETIME");
oci_execute($SQL);

When I run this query in SQLPlus I don't receive any errors.

What is causing this warning?