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이 문서에서는 PHP 중국어 웹사이트 매뉴얼 풀어 주다
(PHP 4 >= 4.0.2, PHP 5 <= 5.0.5, PECL ingres >= 1.0.0)
ingres_field_precision — Get the precision of a field
$result
, int $index
)ingres_field_precision() returns the precision of a field. This value is used only for decimal, float, and money SQL data types. For detailed information, see the Ingres OpenAPI User Guide, Appendix "Data Types" in the Ingres documentation.
Note: Related Configurations
See ingres.array_index_start in Runtime Configuration
result
The query result identifier
index
index
is the field whose precision will be
retrieved.
The possible values of index
depend upon
the value
of ingres.array_index_start.
If ingres.array_index_start
is 1 (the default)
then index
must be
between 1 and the value returned
by ingres_num_fields() . If ingres.array_index_start
is 0 then index
must
be between 0
and ingres_num_fields() -
1.
Returns the field precision as an integer