Help with a simple select statement

Question

$x = oci_parse($c, "select quantity from balance where item_num=101");
oci_execute($x);
echo "the quant is: ".$x;
I try to run this select statement without success
then I tried...
$x = oci_parse($c, "select quantity from balance where item_num=101");
$y= oci_execute($x);
echo "the quant is: ".$y;
and it didn't work either...
What should I change?
thanks!

Answer 1

The Oracle library operates a bit differently from some other PHP libraries, notably MySQL/MySQLi. With Oracle (OCI8), you have to execute the statement, and then afterward use an oci_fetch...() function to pull things from your $statement variable. Here's a small example that hopefully will illustrate the basic usage:
<?php
     $conn = oci_connect('hr','hr','xe');
     if(!$conn) {
          echo 'Could not connect!';
          exit;
     $sql = 'select * from jobs';
     $stmt = oci_parse($conn, $sql);
     if(!$stmt) {
          echo 'Could not parse query.';
          exit;
     $result = oci_execute($stmt, OCI_DEFAULT);
     if(!$result) {
          echo 'Could not execute query.';
          exit;
     echo "Query ran successfully.\n";
     // Fetch rows as associative arrays, so
     // we can ask for values by column name.
     // Other options include oci_fetch_row(),
     // oci_fetch_array(), and oci_fetch_object().
     // Note that oci_fetch_assoc() will create
     // an associative array using upper-case
     // column names for the keys.
     while(($row = oci_fetch_assoc($stmt)) != null)
          echo $row['JOB_ID'] . ': ' . $row['JOB_TITLE'] . "\n";
     echo "All data returned.\n";
     oci_close($conn);
?>When I run this, I get the following:
C:\workspace\php>php select.php
Query ran successfully.
AD_PRES: President
AD_VP: Administration Vice President
AD_ASST: Administration Assistant
FI_MGR: Finance Manager
FI_ACCOUNT: Accountant
AC_MGR: Accounting Manager
AC_ACCOUNT: Public Accountant
SA_MAN: Sales Manager
SA_REP: Sales Representative
PU_MAN: Purchasing Manager
PU_CLERK: Purchasing Clerk
ST_MAN: Stock Manager
ST_CLERK: Stock Clerk
SH_CLERK: Shipping Clerk
IT_PROG: Programmer
MK_MAN: Marketing Manager
MK_REP: Marketing Representative
HR_REP: Human Resources Representative
PR_REP: Public Relations Representative
All data returned.
C:\workspace\php>For more information, take a look at the OCI8 library documentation in the PHP manual online:
OCI8
http://us.php.net/manual/en/book.oci8.php
Some other examples
http://us.php.net/manual/en/oci8.examples.php
Kind regards,
Christopher L. Simons