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Matching Arrays

RK
in The Left Brain

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I need an efficient way to run calculations on multiple records in one table against corresponding multiple records in a second table. Let's see if I can explain. Table one has dated contracts for pieces of equipment. One piece of equipment can have multiple contracts: Equipment SN / Date Start / Rate / Date End. A second Table has the same equipment, a record date, and miles run. This table (2) can have multiple records for each single piece of equipment: Equipment SN / Date Run / Miles Run. What is the easiest way to evaluate table (2) Miles Run against information in table (1) whether equipment was on contract or not?

A relationship such as:

Contracts::Equipment SN = Log::Equipment SN

AND

Contracts::Date Start ≤ Log::Date Run

AND

Contracts::Date End ≥ Log::Date Run

will enable you to use the applicable Rate from Contracts in the Log table (assuming that's what you're looking for).

  • Author

Perfect ! That's exactly what I was looking for. Many thanks.

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https://fmforums.com/topic/65668-matching-arrays/
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