Returns the position of the named column in a 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 an integer containing the 0-indexed position of the named column in
the result set. If the specified column does not exist in the result set,
db2_field_num() returns FALSE
.