Question

Here is my table data…lets call this table TABLEX

ID         COL1          COL2
------------------------------
 100         a             b
 101         x             y
 102         a             b
 103         c             d
 104         e             f
 105         a             b
 106         c             d
 107         x             y

I want following records to be retrieved from this table

ID         COL1          COL2
------------------------------
 100         a             b
 101         x             y
 103         c             d
 104         e             f

In other words I want to retrieve distinct values from COL1 + COL2 but also show along with records’ ID.

Answer 1

select min(id) as id, col1, col2
from Tablex
group by col1, col2