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How to implement a set of values as a unique key and not an independent validation by index?

Started by edisonr17, 04 July 2017 - 14:52 PM

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edisonr17

Member

Posted 04 July 2017 - 14:52 PM

Example.

Inserting values in the table

1 and 1 = true

1 and 2 = true

1 and 1 = false

2 and 1 = true

2 and 2 = true

2 and 1 = false