DB2_EXEC(3)								 1							       DB2_EXEC(3)

db2_exec - Executes an SQL statement directly

SYNOPSIS

       resource db2_exec (resource  $connection, string  $statement, [array  $options])

DESCRIPTION

	Executes an SQL statement directly.

	If  you  plan to interpolate PHP variables into the SQL statement, understand that this is one of the more common security exposures. Con-
       sider calling db2_prepare(3) to prepare an SQL statement with parameter markers for input values. Then you can call db2_execute(3) to  pass
       in the input values and avoid SQL injection attacks.

	If  you  plan  to repeatedly issue the same SQL statement with different parameters, consider calling db2_prepare(3) and db2_execute(3) to
       enable the database server to reuse its access plan and increase the efficiency of your database access.

PARAMETERS

	      o $connection
		- A valid database connection resource variable as returned from db2_connect(3) or db2_pconnect(3).

	      o $statement
		- An SQL statement. The statement cannot contain any parameter markers.

	      o $options
		- An associative array containing statement options. You can use this parameter to request a scrollable cursor on database servers
		that support this functionality.  For a description of valid statement options, see db2_set_option(3).

RETURN VALUES

	Returns a statement resource if the SQL statement was issued successfully, or FALSE if the database failed to execute the SQL statement.

EXAMPLES

       Example #1

	      Creating a table with db2_exec(3)

	       The following example uses db2_exec(3) to issue a set of DDL statements in the process of creating a table.

	      <?php
	      $conn = db2_connect($database, $user, $password);

	      // Create the test table
	      $create = 'CREATE TABLE animals (id INTEGER, breed VARCHAR(32),
		  name CHAR(16), weight DECIMAL(7,2))';
	      $result = db2_exec($conn, $create);
	      if ($result) {
		  print "Successfully created the table.
";
	      }

	      // Populate the test table
	      $animals = array(
		  array(0, 'cat', 'Pook', 3.2),
		  array(1, 'dog', 'Peaches', 12.3),
		  array(2, 'horse', 'Smarty', 350.0),
		  array(3, 'gold fish', 'Bubbles', 0.1),
		  array(4, 'budgerigar', 'Gizmo', 0.2),
		  array(5, 'goat', 'Rickety Ride', 9.7),
		  array(6, 'llama', 'Sweater', 150)
	      );

	      foreach ($animals as $animal) {
		  $rc = db2_exec($conn, "INSERT INTO animals (id, breed, name, weight)
		    VALUES ({$animal[0]}, '{$animal[1]}', '{$animal[2]}', {$animal[3]})");
		  if ($rc) {
		      print "Insert... ";
		  }
	      }
	      ?>

	      The above example will output:

	      Successfully created the table.
	      Insert... Insert... Insert... Insert... Insert... Insert... Insert...

       Example #2

	      Executing a SELECT statement with a scrollable cursor

	       The following example demonstrates how to request a scrollable cursor for an SQL statement issued by db2_exec(3).

	      <?php
	      $conn = db2_connect($database, $user, $password);
	      $sql = "SELECT name FROM animals
		  WHERE weight < 10.0
		  ORDER BY name";
	      if ($conn) {
		  require_once('prepare.inc');
		  $stmt = db2_exec($conn, $sql, array('cursor' => DB2_SCROLLABLE));
		  while ($row = db2_fetch_array($stmt)) {
		      print "$row[0]
";
		  }
	      }
	      ?>

	      The above example will output:

	      Bubbles
	      Gizmo
	      Pook
	      Rickety Ride

       Example #3

	      Returning XML data as an SQL ResultSet

	       The  following  example demonstrates how to work with documents stored in a XML column using the SAMPLE database. Using some pretty
	      simple SQL/XML, this example returns some of the nodes in a XML document in an SQL ResultSet format that	most  users  are  familiar
	      with.

	      <?php

	      $conn = db2_connect("SAMPLE", "db2inst1", "ibmdb2");

	      $query = 'SELECT * FROM XMLTABLE(
		  XMLNAMESPACES (DEFAULT 'http://posample.org'),
		  'db2-fn:xmlcolumn("CUSTOMER.INFO")/customerinfo'
		  COLUMNS
		  "CID" VARCHAR(50) PATH '@Cid',
		  "NAME" VARCHAR(50) PATH 'name',
		  "PHONE" VARCHAR(50) PATH 'phone [ @type = "work"]'
		  ) AS T
		  WHERE NAME = 'Kathy Smith'
		  ';
	      $stmt = db2_exec($conn, $query);

	      while($row = db2_fetch_object($stmt)){
		  printf("$row->CID	$row->NAME     $row->PHONE
");
	      }
	      db2_close($conn);

	      ?>

	      The above example will output:

	      1000     Kathy Smith     416-555-1358
	      1001     Kathy Smith     905-555-7258

       Example #4

	      Performing a "JOIN" with XML data

	       The  following example works with documents stored in 2 different XML columns in the SAMPLE database. It creates 2 temporary tables
	      from the XML documents from 2 different columns and returns an SQL ResultSet with information regarding shipping status for the cus-
	      tomer.

	      <?php

	      $conn = db2_connect("SAMPLE", "db2inst1", "ibmdb2");

	      $query = '
		  SELECT A.CID, A.NAME, A.PHONE, C.PONUM, C.STATUS
		  FROM
		  XMLTABLE(
		  XMLNAMESPACES (DEFAULT 'http://posample.org'),
		  'db2-fn:xmlcolumn("CUSTOMER.INFO")/customerinfo'
		  COLUMNS
		  "CID" BIGINT PATH '@Cid',
		  "NAME" VARCHAR(50) PATH 'name',
		  "PHONE" VARCHAR(50) PATH 'phone [ @type = "work"]'
		  ) as A,
		  PURCHASEORDER AS B,
		  XMLTABLE (
		  XMLNAMESPACES (DEFAULT 'http://posample.org'),
		  'db2-fn:xmlcolumn("PURCHASEORDER.PORDER")/PurchaseOrder'
		  COLUMNS
		  "PONUM"  BIGINT PATH '@PoNum',
		  "STATUS" VARCHAR(50) PATH '@Status'
		  ) as C
		  WHERE A.CID = B.CUSTID AND
		  B.POID = C.PONUM AND
		  A.NAME = 'Kathy Smith'

	      $stmt = db2_exec($conn, $query);

	      while($row = db2_fetch_object($stmt)){
		  printf("$row->CID	$row->NAME     $row->PHONE     $row->PONUM     $row->STATUS
");
	      }

	      db2_close($conn);

	      ?>

	      The above example will output:

	      1001     Kathy Smith     905-555-7258	5002	 Shipped

       Example #5

	      Returning SQL data as part of a larger XML document

	       The  following  example works with a portion of the PRODUCT.DESCRIPTION documents in the SAMPLE database. It creates a XML document
	      containing product description (XML data) and pricing info (SQL data).

	      <?php

	      $conn = db2_connect("SAMPLE", "db2inst1", "ibmdb2");

	      $query = '
	      SELECT
	      XMLSERIALIZE(
	      XMLQUERY('
		  declare boundary-space strip;
		  declare default element namespace "http://posample.org";
		  <promoList> {
		  for $prod in $doc/product
		  where $prod/description/price < 10.00
		  order by $prod/description/price ascending
		  return(
		      <promoitem> {
		      $prod,
		      <startdate> {$start} </startdate>,
		      <enddate> {$end} </enddate>,
		      <promoprice> {$promo} </promoprice>
		      } </promoitem>
		  )
		  } </promoList>
	      ' passing by ref DESCRIPTION AS "doc",
	      PROMOSTART as "start",
	      PROMOEND as "end",
	      PROMOPRICE as "promo"
	      RETURNING SEQUENCE)
	      AS CLOB(32000))
	      AS NEW_PRODUCT_INFO
	      FROM PRODUCT
	      WHERE PID = '100-100-01'

	      $stmt = db2_exec($conn, $query);

	      while($row = db2_fetch_array($stmt)){
		  printf("$row[0]
");
	      }
	      db2_close($conn);

	      ?>

	      The above example will output:

	      <promoList xmlns="http://posample.org">
		  <promoitem>
		  <product pid="100-100-01">
		      <description>
			  <name>Snow Shovel, Basic 22 inch</name>
			  <details>Basic Snow Shovel, 22 inches wide, straight handle with D-Grip</details>
			  <price>9.99</price>
			  <weight>1 kg</weight>
		      </description>
		  </product>
		  <startdate>2004-11-19</startdate>
		  <enddate>2004-12-19</enddate>
		  <promoprice>7.25</promoprice>
		  </promoitem>
	      </promoList>

SEE ALSO

       db2_execute(3), db2_prepare(3).

PHP Documentation Group 													       DB2_EXEC(3)