Very funny Sturner - thanks for the smile.

I executed the 3 different statements as requested, each 3 times.

SALES_SUMMARY has 34,000 records, about 380 Bytes/record, data storage space is 14 MB

SalesForecast has 160 records, about 490 Bytes/record, .078 MB

The results are in microseconds:

Mine: 13, 13, 10

Sergiv: 6, 10, 6

Eugene: 6, 6, 10

The tables are small, but your point is taken - the difference is there.

Thanks for your help, I appreciate it.