PHP : Function Reference : IBM DB2, Cloudscape and Apache Derby Functions : db2_fetch

Example 942. Iterating through a result set

The following example demonstrates how to iterate through a result set with db2_fetch_row() and retrieve columns from the result set with db2_result().

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<?php

$sql = 'SELECT name, breed FROM animals WHERE weight < ?';
$stmt = db2_prepare($conn, $sql);
db2_execute($stmt, array(10));

while (db2_fetch_row($stmt)) {

    $name = db2_result($stmt, 0);

    $breed = db2_result($stmt, 1);

    print "$name $breed";

}
?>

The above example will output:

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cat Pook

gold fish Bubbles

budgerigar Gizmo

goat Rickety Ride

Example 943. i5/OS recommended alternatives to db2_fetch_row/db2_result

On i5/OS it is recommended that you use db2_fetch_both(), db2_fetch_array(), or db2_fetch_object() over db2_fetch_row()/db2_result(). In general db2_fetch_row()/db2_result() have more issues with various column types in EBCIDIC to ASCII translation, including possible truncation in DBCS applications. You may also find the performance of db2_fetch_both(), db2_fetch_array(), and db2_fetch_object() to be superior to db2_fetch_row()/db2_result().

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<?php

  $conn = db2_connect("","","");

  $sql = 'SELECT SPECIFIC_SCHEMA, SPECIFIC_NAME, ROUTINE_SCHEMA, ROUTINE_NAME, ROUTINE_TYPE, ROUTINE_CREATED, ROUTINE_BODY, IN_PARMS, OUT_PARMS, INOUT_PARMS, PARAMETER_STYLE, EXTERNAL_NAME, EXTERNAL_LANGUAGE FROM QSYS2.SYSROUTINES FETCH FIRST 2 ROWS ONLY';

  $stmt = db2_exec($conn, $sql, array('cursor' => DB2_SCROLLABLE));

  while ($row = db2_fetch_both($stmt)){

    echo "<br>db2_fetch_both {$row['SPECIFIC_NAME']} {$row['ROUTINE_CREATED']} {$row[5]}";

  }

  $stmt = db2_exec($conn, $sql, array('cursor' => DB2_SCROLLABLE));

  while ($row = db2_fetch_array($stmt)){

    echo "<br>db2_fetch_array {$row[1]}  {$row[5]}";

  }

  $stmt = db2_exec($conn, $sql, array('cursor' => DB2_SCROLLABLE));

  while ($row = db2_fetch_object($stmt)){

    echo "<br>db2_fetch_object {$row->SPECIFIC_NAME} {$row->ROUTINE_CREATED}";

  }

  db2_close($conn);
?>

The above example will output:

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db2_fetch_both MATCH_ANIMAL 2006-08-25-17.10.23.775000 2006-08-25-17.10.23.775000

db2_fetch_both MULTIRESULTS 2006-10-17-10.11.05.308000 2006-10-17-10.11.05.308000

db2_fetch_array MATCH_ANIMAL 2006-08-25-17.10.23.775000

db2_fetch_array MULTIRESULTS 2006-10-17-10.11.05.308000

db2_fetch_object MATCH_ANIMAL 2006-08-25-17.10.23.775000

db2_fetch_object MULTIRESULTS 2006-10-17-10.11.05.308000

Code Examples / Notes » db2_fetch_row

if the second parameter (the row number) is specified, your connection needs to have the CURSOR option set to DB2_SCROLLABLE. Otherwise all calls to this function will fail. Internal to the ibm_db2 extension module the db2cli api function SQLFetchScroll() generates the error "CLI0145E Fetch type out of range" since it requires a scrollable resultset to work, instead of the default forward only resultset. hope this saves someone the time it took me to track this down in the db2cli traces. Regards, Kris Dover

db2_fetch_row

Sets the result set pointer to the next row or requested row (PECL ibm_db2:1.0-1.6.2)
bool db2_fetch_row ( resource stmt [, int row_number] )

Example 942. Iterating through a result set

Example 943. i5/OS recommended alternatives to db2_fetch_row/db2_result

Code Examples / Notes » db2_fetch_row

Change Language

db2_fetch_row

Sets the result set pointer to the next row or requested row (PECL ibm_db2:1.0-1.6.2) bool db2_fetch_row ( resource stmt [, int row_number] )

Example 942. Iterating through a result set

Example 943. i5/OS recommended alternatives to db2_fetch_row/db2_result

Code Examples / Notes » db2_fetch_row

Change Language

Sets the result set pointer to the next row or requested row (PECL ibm_db2:1.0-1.6.2)
bool db2_fetch_row ( resource stmt [, int row_number] )