```
COL 1 Values: QQQ,QQ,123,VVVV
COL 2 VALUES: WWWW,VVV,QQQ

```

Compare COL1 values vs COL 2 values:
For e.g.

**1)** If a value exist in COL1 but NOT in COL2 then display that COL1 value under COL VALUE ADDED

Output Expected: `COL VALUE ADDED = QQ,123,VVVV`

**2)** If a value exist in COL2 but NOT in COL1 then display that COL2 values under COL VALUE Removed. 

Output Expected: `COL VALUE REMOVED = WWWW,VVV`

**3)** If the set of values are same within COL1 and COL2 then display it as NULL

Can these be handled and compared as expected dynamically via PLSQL command? I expect to have dynamic comma separated values that needs to be compared between Current and Before set of values.