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[edit] Last updated: Fri, 25 May 2012

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oci_field_precision

(PHP 5, PECL OCI8 >= 1.1.0)

oci_field_precision返回字段精度

说明

int oci_field_precision ( resource $statement , int $field )

返回索引为 field(从 1 开始)的字段的精度。

对于 FLOAT 字段,精度为非零值且范围为 -127。如果精度为 0,则字段为 NUMBER。其它类型为 NUMBER(precision, scale)。

Note:

在 PHP 5.0.0 之前的版本必须使用 ocicolumnprecision() 替代本函数。该函数名仍然可用,为向下兼容作为 oci_field_precision() 的别名。不过其已被废弃,不推荐使用。

参见 oci_field_scale()oci_field_type()



add a note add a note User Contributed Notes oci_field_precision
webmaster at smwebdesigns dot com 15-Oct-2007 05:58
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;
}
webmaster at smwebdesigns dot com 11-Oct-2007 12:39
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;
}

 
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