So SQL stores the closest value that can be stored in a float. SET FloatCol = CAST(IntCol1 AS float) / IntCol2 WHERE .... SQL Server will switch to non-integer division as soon as one of the operands in of a float or decimal type. But when I do this on SQL Server, we get the following: CREATE TABLE #tmp(colA DECIMAL(20,3), colB FLOAT);-- succeeds as float) but not working... my stdout is showing actually the value being a float : "latitude" : 12.3423 but this is stored as NULL in the database. Without the cast, the division would have been made first (as integer division, Any idea? When you want to convert from float or real to character data, using the STR string function is usually more useful than CAST( ). Values of float are truncated when they are converted to any integer type.. 3 Likes 3,735 Views 1 Comment . The cast explicitly converts the IntCol1 to float before the division is carried out. This argument is case-insensitive, so either N or n is fine. Given that, unless you have a compelling reason to change the data type and unless you are able to do sufficient regression testing, I would be reluctant to change the data type. For example, the insertion will fail for the decimal column in the second example. That closest value is -2702489.85637499997392296791077. After a little research i found that it can be solved by using. This is because STR enables more control over formatting. I also used the CAST(? AFAICS, the exact 2 decimal places in the display of the value is the presentation layer and therefore it should be handled by your client application, not the SQL Sever (as per my earlier post + Latheesh's last post).. I have a float datatype and it does not add a decimal point if a number is whole. The database is NOT a spreadsheet, and, I suspect, you have to think like a database, NOT a spreadsheet when dealing ONLY with the database ( versus moving the data into a spreadsheet ). declare @num as float set @num=5.20 select @num will dispaly only 5.2 But i want it to display as 5.20. HANA SQL: Casting to decimal (implicit or explicit) will not provide rounding. The SQL Server treats the 2 numeric (in general sense, not as data-type) 178.7 and 178.70 as exactly the same value and hence it will display 178.7 in the Datasheet. For more information, see STR (Transact-SQL) and Functions (Transact-SQL). Here’s another example, this time using N1 to specify that we only want one decimal place: select CAST(@num AS numeric(10,2)) But this is not the solution i … For example, let's do a simple division as 1234/1233. Now, this is the rule, for database arithmetic. I would suggest casting to decimal instead, as float is an imprecise datatype and is prone to "errors" in the result. Now when you round it to 5 decimal places, SQL notices that the decimal part is slightly less than 856375, so it rounds DOWN and you get -2702489.85637 as the result. This particular format specifier (N) results in the output being formatted with integral and decimal digits, group separators, and a decimal separator with optional negative sign. I need to calculate 3 columns where the mid results are huge decimals, and I'm running into a problem early on with SQL Server basically rounding the decimals regardless of any cast / converts. When I look at the generated code, the column is showing double instead of decimal in C#. I change the datatype from float to Decimal(18,2) in SQL, then I update the edmx. The way the database back-end ( HSQL database engine ) works, is NOT the same as a spreadsheet. For example, 500 should be 500.00. Converting float and real data. A calculator will produce 1,00081103000811. 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