Name
udt_defines_field — Determines whether a user defined type contains a specified member.
Synopsis
integer
udt_defines_field
(
|
in udt any , |
in
member_name
varchar
); |
Description
This function is used to determine whether the supplied member_name is a member contained by the supplied udt.
Parameters
udt
A user defined type name as varchar or type instance.
member_name
The requested member name.
Return Types
This function returns either 1 (true) or 0 (false). 1 (true) is returned if the udt contains a member whose name is equal to the value of member_name, or 0 otherwise.
Examples
Example 24.425. Simple Use
select udt_defines_field (new SER_UDT(), 'A');
returns 1
select udt_defines_field (new SER_UDT_SUB(), 'A');
returns 1
select udt_defines_field (new SER_UDT(), 'B');
returns 0;