db2_exec

Executes an SQL statement directly

 **db2_exec** resource $connection string $statement array $options

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. Consider calling to prepare an SQL statement with parameter markers for input values. Then you can call to pass in the input values and avoid SQL injection attacks. db2_prepare``db2_execute

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

connection A valid database connection resource variable as returned from or . db2_connect``db2_pconnect

statementAn SQL statement. The statement cannot contain any parameter markers.

optionsAn 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`

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

**Voorbeeld: Creating a table with **

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

<?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.\n";
}

// 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... ";
    }
}
?>

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

Voorbeeld: 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`

<?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]\n";
    }
}
?>

Bubbles
Gizmo
Pook
Rickety Ride

Voorbeeld: 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     $row->PHONE\n");
}
db2_close($conn);

?>

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

Voorbeeld: 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 customer.

<?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\n");
}

db2_close($conn);

?>

1001     Kathy Smith     905-555-7258     5002     Shipped

Voorbeeld: 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("$row[0]\n");
}
db2_close($conn);

?>

<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>

db2_execute``db2_prepare

Vorige ← db2_escape_string Volgende db2_execute →

db2_exec

db2_exec

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