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Packed decimal is a method used in computing to store more in less space. A bit of theory here. Characters are stored in binary in their ASCII representation, such that the number 1 = ascii 49 (decimal). Packed decimal means you can store two numbers (numbers only) in the same space, so that ascii 49 = numbers 4 and 9. There is overhead so it is always a trade off between space and computing. And storage is cheap these days

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Q: What is packed decimal?
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