I did not test well before posting previous code. This if statement works and the other does not.
if( ocicolumnscale($R, $i ) != 129 )
{
$int_decimal = ocicolumnscale($R, $i );
$int_length = ocicolumnprecision($R, $i) - $int_decimal;
}
oci_field_precision
(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)
oci_field_precision — Tell the precision of a field
Descrizione
Returns precision of the column.
For FLOAT columns, precision is nonzero and scale is -127. If precision is 0, then column is NUMBER. Else it's NUMBER(precision, scale).
Elenco dei parametri
-
statement -
A valid OCI statement identifier.
-
column -
Can be the field's index (1-based) or name.
Valori restituiti
Returns the precision as an integer, o false in caso di fallimento
Esempi
Example #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($conn);
?>Vedere anche:
- oci_field_scale() - Tell the scale of the field
- oci_field_type() - Returns a field's data type name
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User Contributed Notes 2 notes
webmaster at smwebdesigns dot com ¶
17 years ago
webmaster at smwebdesigns dot com ¶
17 years ago
I've found that when using ocicolumnprecision or oci_field_precision it will not show you the decimal places if you are are reading from tables with decimals. You can use ocicolumnscale or oci_field_scale to find the decimal.
if( ocicolumnscale($R, $i ) > 0 )
{
$int_decimal = ocicolumnscale($R, $i );
$int_length = ocicolumnprecision($R, $i) - $int_decimal;
}
