Need list of POs with 1 currency type (because has 1 POItems w/ different

Question

In the old system users would put currency type on po items. In new system, they are putting it only on PO, not the items.
I am migrating from old system to new and would like to put currency type on the PO.
1. I want to get a report of POs that have >1 currency type assigned by way of the related po items having different currency types. See how PO 249 has GBP and US... that is because there are 2 PO items on that one PO, and one has GBP and the other has US. How could I filter down to just those POs w/ > 1 currency type?
2. Also how could I find those w/ no currency type? Like POs 5 and 6 (they are not in the list).
thanks.
select distinct POID, CurrencyType from fac_import_poitems
POID                   CURRENCYTYPE                  
0                      US                            
1                      US                            
2                      US                            
3                      US                            
4                      US                            
7                      US                            
8                      US                            
9                      US                            
10                     US                            
11                     US                            
12                     US                            
13                     US                            
15                     US                            
17                     US                            
18                     US                            
19                     US                            
20                     US                            
21                     US                            
22                     US                            
23                     US                            
24                     US                            
25                     US                            
26                     US                            
41                     US                            
42                     US                            
43                     US                            
45                     US                            
46                     US                            
47                     US                            
48                     US                            
49                     US                            
51                     US                            
52                     US                            
53                     US                            
54                     US                            
55                     US                            
56                     US                            
57                     US                            
58                     US                            
59                     US                            
60                     US                            
61                     US                            
62                     US                            
63                     US                            
64                     US                            
65                     US                            
66                     US                            
67                     US                            
68                     US                            
69                     US                            
70                     US                            
71                     US                            
72                     US                            
73                     US                            
74                     US                            
75                     US                            
76                     US                            
77                     US                            
78                     US                            
79                     US                            
80                     US                            
81                     US                            
82                     US                            
83                     US                            
84                     US                            
85                     US                            
86                     US                            
89                     US                            
90                     US                            
91                     US                            
92                     GBP                           
93                     US                            
94                     US                            
95                     US                            
96                     US                            
97                     US                            
98                     US                            
99                     US                            
100                    US                            
101                    US                            
102                    US                            
103                    US                            
104                    US                            
105                    US                            
106                    US                            
107                    US                            
108                    US                            
109                    US                            
110                    US                            
111                    US                            
112                    US                            
113                    US                            
114                    US                            
116                    US                            
117                    US                            
118                    GBP                           
119                    EU                            
121                    EU                            
122                    EU                            
123                    GBP                           
124                    EU                            
125                    GBP                           
126                    GBP                           
127                    EU                            
128                    GBP                           
129                    GBP                           
130                    GBP                           
131                    EU                            
132                    EU                            
133                    EU                            
134                    EU                            
135                    GBP                           
136                    GBP                           
137                    GBP                           
138                    GBP                           
139                    US                            
140                    US                            
141                    US                            
144                    US                            
145                    US                            
146                    US                            
147                    US                            
149                    US                            
150                    US                            
151                    US                            
152                    US                            
154                    US                            
155                    US                            
156                    US                            
157                    US                            
158                    US                            
159                    US                            
160                    US                            
161                    US                            
162                    US                            
163                    US                            
165                    US                            
166                    US                            
167                    US                            
168                    US                            
169                    US                            
170                    US                            
171                    US                            
172                    US                            
173                    US                            
174                    US                            
175                    US                            
181                    US                            
182                    US                            
184                    US                            
187                    US                            
188                    US                            
189                    US                            
190                    US                            
191                    US                            
192                    US                            
193                    US                            
194                    US                            
195                    US                            
196                    US                            
197                    US                            
198                    US                            
199                    US                            
200                    US                            
201                    US                            
202                    US                            
203                    US                            
205                    US                            
206                    US                            
207                    US                            
208                    US                            
209                    US                            
210                    US                            
211                    US                            
212                    US                            
213                    US                            
214                    US                            
215                    US                            
216                    US                            
217                    US                            
218                    US                            
219                    US                            
220                    US                            
221                    US                            
222                    US                            
224                    US                            
225                    US                            
226                    US                            
227                    US                            
228                    US                            
229                    US                            
230                    US                            
231                    US                            
232                    US                            
233                    Euros                         
234                    US                            
235                    US                            
236                    US                            
237                    US                            
238                    US                            
239                    US                            
240                    US                            
241                    US                            
243                    US                            
244                    US                            
245                    GBP                           
247                    GBP                           
249                    GBP                           
249                    US   
Oracle 9i*

Answer 1

OK, GOT IT. This gives me the POs w/ >1 currency type
select POs.id POID, count( distinct items.CurrencyType )
  from fac_import_poitems items,
       fac_import_purchase_orders POs
where items.poid = POs.id
group by POs.id, items.poid
having count( distinct items.CurrencyType ) > 1using that as subquery, I can get the POItems in each po w/ >1 currency type and I added some more useful info on the PO as well.
select subq.id POID, subq.Description, subq.PDPerson, items.id POItemID, items.currencytype
from fac_import_poitems items,
  select POs.id, POs.projectname Description, POs.requestorname PDPerson, items.POID, count( distinct items.CurrencyType )
  from fac_import_poitems items,
       fac_import_purchase_orders POs
where items.poid = POs.id
group by POs.id, items.poid, pos.projectname, pos.requestorname
having count( distinct items.CurrencyType ) > 1
  ) subq
where subq.ID = items.poid;thank you so much Justin!!!