Thank you again to Lutz and Wayne. I updated my script per Lutz' suggestions to use table #tmpChecks instead of table variable @tmpChecks. I made some minor adjustments to exclude about 100,000 unneeded rows. Now the script runs as desired.

For timing, yesterday's script ran for over 23 hours and was less than 5% complete when I halted it. Today's script succussfully completed in less than 4 minutes. That's what I call a real improvement.

gmrose