Do it now: Date and Number tables

Numbers on metal deposit boxes in a bank

Your production environment needs Date and Number tables, to help you Get Stuff Done in sets instead of RBAR*.

Doug Lane has a video on Why You Simply Must Have a Date Table. I really loved the intro.

A Numbers Table is also very useful for similar reasons. Jeff Moden has been harping on about so-called Tally Tables for years.

Check out Greg Larsen’s post, Creative Solutions by Using a Number Table, for some nifty uses.


  • Jeff Moden coined the acronym RBAR, or Row By Agonizing Row.

Photo by Tim Evans on Unsplash.

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