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$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed";
$stmt = db2_prepare($conn, $sql);
$result = db2_execute($stmt);
while ($row = db2_fetch_both($stmt)) {
printf ("%-5d %-16s %-32s %10s\n",
$row['ID'], $row[0], $row['BREED'], $row[3]);
}Результат выполнения данного примера:
0 Pook cat 3.20
5 Rickety Ride goat 9.70
2 Smarty horse 350.00Пример #2 Retrieving specific rows with db2_fetch_both() from a scrollable cursor
If your result set uses a scrollable cursor, you can call db2_fetch_both() with a specific row number. The following example retrieves every other row in the result set, starting with the second row.
$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed";
$result = db2_exec($stmt, $sql, array('cursor' => DB2_SCROLLABLE));
$i=2;
while ($row = db2_fetch_both($result, $i)) {
printf ("%-5d %-16s %-32s %10s\n",
$row[0], $row['NAME'], $row[2], $row['WEIGHT']);
$i = $i + 2;
}Результат выполнения данного примера:
0 Pook cat 3.20
5 Rickety Ride goat 9.70
2 Smarty horse 350.00Смотрите также
- db2_fetch_array() - Returns an array, indexed by column position, representing a row in a result set
- db2_fetch_assoc() - Returns an array, indexed by column name, representing a row in a result set
- db2_fetch_object() - Returns an object with properties representing columns in the fetched row
- db2_fetch_row() - Sets the result set pointer to the next row or requested row
- db2_result() - Returns a single column from a row in the result set
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eacosta at openware dot biz ¶5 years ago
Hello,
Some weeks ago I faced difficulties with walk a big number of
records from a result set.
I was using the function db2_fetch_both in a method of a database adapter
class to retrieve just one record at a time. The total number of records
were: 5647 and when I reach record number 1600 the function crashed
generating the below message in "Actual result" field.
I am copying table's description next:
TMP_TABLE
-----------------------------------------------------------------
| ID | TYPE | SIZE | NULL |
-----------------------------------------------------------------
| ID | INTEGER | 4 | NO |
| SERVICE | VARCHAR | 30 | NO |
| ID_v | VARCHAR | 30 | NO |
| INFORMATION | CLOB | 65536 | YES |
| EXP_LEVEL | INTEGER | 4 | NO |
| IP4B | BIGINT | 8 | NO |
| MODIFIED | INTEGER | 4 | YES |
| DETAIL | VARCHAR | 200 | YES |
| FALSPOS | INTEGER | 4 | YES |
-----------------------------------------------------------------
When it crashed I received this message from db2_fetch_both
db2_fetch_array() [function.db2-fetch-array]: Fetch Failure
After reported this message to IBM OpenDev I was helped by a OpenDev IBMer who noticed me
that it wasn't a ibm_db2 module problem, in fact it was a database configuration
issue. The OpenDev IBMer looked into my DB2 Client CLI TRACE files and found out what was happen.
So I had to modify APP_CTL_HEAP_SZ and everything seems to works fine now.
--
Esteban Acosta Villafae
Area I+D
http://www.openware.biz/opendev
Linkein Profile: http://www.linkedin.com/in/estebanav