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[Communication] Decimal type explained in MySQL database

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Posted on 8/3/2018 10:26:20 AM | | |
What do m and n mean in the MySql data type decimal(m,n)?

n: is the number of decimal places after the decimal point.
m：is the total length of the integer part plus the decimal part, if n = 2, m = 5, then the inserted value, the integer part cannot exceed 3 digits, otherwise it will report an error that is out of range.That is, the inserted digital integer part cannot exceed N-M bits, otherwise it cannot be successfully inserted.








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