#All or none principle definition professional#
In database transaction processing, the hydrogen atoms are the data flowing through the system the (p) are the properties that guarantee those transactions are processing reliably.Īsk any data professional and they could probably explain the ACID (Atomicity, Consistency, Isolation, and Durability) acronym quite well. Thus, pH is the power/potential energy of hydrogen in a given solution, or the activity of the hydrogen atoms in that solution: an acidic solution has more activity, an alkaline solution has less. There is considerable disagreement whether the (p) comes from the French puissance, German potenz, or Latin pondus or potentia yet, they all mean potential or power. Søren Peder Lauritz Sørensen first developed the concept while working at the Carlsberg Laboratory in 1909, so the idea is not something new.
To extend this useful metaphor further, let’s first look at the idea of pH. Data engineers have cleverly borrowed acid vs base from chemists and created acronyms that while not exact in their meanings, are still apt representations of what is happening within a given database system when discussing the reliability of transaction processing. The pH scale extends from 0 (highly acidic substances such as battery acid) to 14 (highly alkaline substances like lie) pure water at 77° F (25° C) has a pH of 7 and is neutral. In Chemistry, pH measures the relative basicity and acidity of an aqueous (solvent in water) solution.
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