Question

Suppose I have a table like this..

ColA    ColB    ColC
----------------------
A       100     1
A       200     2
A       300     3
B       100     1
B       200     2
C       300     1

I have to select COLA where 100=1 and 200=2 and 300=3

Please help

Answer 1

From what I could understand from your question, you need somthing simple like:

select COLA where ( (COLB=100 and COLC=1) or (COLB=200 and COLC=2) or (COLB=300 and COLC=3) )

or go for the more general:

select COLA where COLB = COLC*100