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Asked: 2026-05-12T13:13:03+00:00

I want to convert my float field into a decimal field; I want a

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I want to convert my float field into a decimal field; I want a precision of 11,2 in my decimal field, but when I tried to change the type of my field(example: Amount) I get an error: “Arithmetic overflow error converting float to data type numeric.
The statement has been terminated.” My field is decimal(11,2) at the table, and my max and min values are: 1,603,837,393.70 < — > -1,688,000,000.00(amount).

I created a temporary table to take out the data and changed the structure of my fields and that worked o.k. but now I need to put the data back (temporary table is still having the original float fields), and I just simply cannot make it insert values with a insert select statement.

Since my values don’t exceed the range of my type I wonder why is not even possible to cast on a select statement like this:

select Id,AccountId, cast(Amount as decimal(12,2)) as Amount,
cast(AmountB as decimal(12,2)) as  AmountB
FROM myTable

I cannot identify the reason to not convert my field.

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1 Answer

  1. Editorial Team

    But a value of “1,603,837,393.70” would require decimal(12,2) – 12 digits in all, 2 after the decimal point.

    Maybe you misinterpreted the way the decimal(11,2) works? This would mean total of 11 digits – 9 to the left, 2 to the right of the decimal point.

    See the MSDN docs for decimal and numeric types:

    decimal[ (p[ , s] )] and numeric[ (p[, s] )]

    p (precision)

    The maximum total number of decimal digits that can be stored, both to the left and to the right of the decimal point.

    Marc

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