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Comparison of oracle's number and postgresql's numeric
2022-08-04 06:10:00 【Big Yellow Cat No. 1】
Oracle's number and postgresql's numeric data types are both used to store precise decimal types, and the usage is basically the same. The difference between the two data types is recorded here.
oracle:
Storage range:
10^-(130)-10^128(excluding)It is stored in decimal format, which is convenient for storage, but in calculation, the system will automatically convert it into binary foroperational.
precision: [1,38]
scale: [-84,127]
The largest integer bit stored is policy-scale
The scale can be greater than the progresspg does not support, the scale can be <0, and the scale less than zero means the decimal point prefixThe single digits are all 0.
postgresql:
Storage range: Numbers up to 1000 digits of precision.
scale>=0 only supports precision>scale
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