PHP-Handbuch: Tell the precision of a field

Beschreibung

int oci_field_precision ( resource $statement , mixed $field )

Returns precision of the field.

For FLOAT columns, precision is nonzero and scale is -127. If precision is 0, then column is NUMBER. Else it's NUMBER(precision, scale).

Parameter-Liste

statement: A valid OCI statement identifier.
field: Can be the field's index (1-based) or name.

Rückgabewerte

Returns the precision as an integer, or FALSE on errors.

Beispiele

Beispiel #1 oci_field_precision Example


<?php

// Create the table with:
//   CREATE TABLE mytab (c1 NUMBER, c2 FLOAT, c3 NUMBER(4), c4 NUMBER(5,3));

$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$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

$ncols = oci_num_fields($stid);
for ($i = 1; $i <= $ncols; $i++) {
    echo oci_field_name($stid, $i) . " " 
        . oci_field_precision($stid, $i) . " " 
        . oci_field_scale($stid, $i) . "<br>\n";
}

// Outputs:
//   C1    0 -127
//   C2  126 -127
//   C3    4    0
//   C4    5    3

oci_free_statement($stid);
oci_close($conn);

?>

Anmerkungen

Hinweis:
In PHP versions before 5.0.0 you must use ocicolumnprecision instead. This name still can be used, it was left as alias of oci_field_precision for downwards compatability. This, however, is deprecated and not recommended.

Siehe auch

oci_field_scale
oci_field_type