I have a table which looks as follows;
Column A Column B Column C
--------- --------- --------
GBR UK1 177
GBR UK2 177
GBR UK2 178
GBR UK3 178
GBR UK1 178
GBR UK4 177
GBR UK5 179
GBR UK6 180
GBR UK2 179
GBR UK1 179
GBR UK2 180
GBR UK1 180
Now I need a query in Oracle that should give me only those values of Column B which have all values of Column C in common (here 177, 178,179,180). The answer here is obviously UK1 and UK2 but how to get a query for this? Thanks