Returns the name of the specified column in the result set.
Parameters
stmt
Specifies a statement resource containing a result set.
column
Specifies the column in the result set. This can either be an integer
representing the 0-indexed position of the column, or a string
containing the name of the column.
Return Values
Returns a string containing the name of the specified column. If the
specified column does not exist in the result
set, db2_field_name() returns FALSE.
