I have a file with 8 gig data with three columns and many rows. Every column has an integer.
I tried to calculate numbers of rows with this property:
Ri.colm1=Rj.colm1&&Ri.colm2=Rj.colm2 && Ri.colm3<>Rj.colm3
Please help.
I have a file with 8 gig data with three columns and many rows. Every column has an integer.
I tried to calculate numbers of rows with this property:
Ri.colm1=Rj.colm1&&Ri.colm2=Rj.colm2 && Ri.colm3<>Rj.colm3
Please help.