Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Set Query Benchmark KNK columns<br />
K5 has 5 values, each appearing randomly on about 200,000 rows<br />
4<br />
1<br />
5<br />
3<br />
4<br />
2<br />
5<br />
1<br />
…<br />
K5=3 on 1/5 of<br />
the rows,so we<br />
say FF = 1/5<br />
for K5=3<br />
K10K has 10,000 values, each appearing<br />
randomly on about 100 rows<br />
3457<br />
0003<br />
5790<br />
0123<br />
4523<br />
…<br />
K10K=3 on<br />
1/10000 of the<br />
rows,so its FF<br />
= 1/10000
Change language