Just a note regarding the size of Oracle NUMBERS will always return 22 as their "size".
This seems to be an Oracle feature. The rest of the documentation is in bug5156.
oci_field_size
(PHP 5, PHP 7, PECL OCI8 >= 1.1.0)
oci_field_size — Returns field's size
Parametri
-
statement -
A valid OCI statement identifier.
-
field -
Can be the field's index (1-based) or name.
Valorile întoarse
Returns the size of a field in bytes, or false on
errors.
Exemple
Example #1 oci_field_size() example
<?php
// Create the table with:
// CREATE TABLE mytab (number_col NUMBER, varchar2_col varchar2(1),
// clob_col CLOB, date_col DATE);
$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
$m = oci_error();
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}
$stid = oci_parse($conn, "SELECT * FROM mytab");
oci_execute($stid, OCI_DESCRIBE_ONLY); // Use OCI_DESCRIBE_ONLY if not fetching rows
echo "<table border=\"1\">\n";
echo "<tr>";
echo "<th>Name</th>";
echo "<th>Type</th>";
echo "<th>Length</th>";
echo "</tr>\n";
$ncols = oci_num_fields($stid);
for ($i = 1; $i <= $ncols; $i++) {
$column_name = oci_field_name($stid, $i);
$column_type = oci_field_type($stid, $i);
$column_size = oci_field_size($stid, $i);
echo "<tr>";
echo "<td>$column_name</td>";
echo "<td>$column_type</td>";
echo "<td>$column_size</td>";
echo "</tr>\n";
}
echo "</table>\n";
// Outputs:
// Name Type Length
// NUMBER_COL NUMBER 22
// VARCHAR2_COL VARCHAR2 1
// CLOB_COL CLOB 4000
// DATE_COL DATE 7
oci_free_statement($stid);
oci_close($conn);
?>
Note
Notă:
In PHP versions before 5.0.0 you must use ocicolumnsize() instead. This name still can be used, it was left as alias of oci_field_size() for downwards compatability. This, however, is deprecated and not recommended.
A se vedea și
- oci_num_fields() - Returns the number of result columns in a statement
- oci_field_name() - Returns the name of a field from the statement
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User Contributed Notes 1 note
rudi at darx dot com ¶
24 years ago
