![]() Tip: Also look at the CONVERT () function. Hence, SELECT CONVERT (VARCHAR (20), FORMAT (123456789.0258, N'.00', N'de')) returns the same output as what you are suggesting. ,) to get all digits and the thousands separator. You would be better off adding a new column with a numeric data type and updating that. The CAST () function converts a value (of any type) into a specified datatype. ) for all digits but no thousands separator, or two of them separated by a comma (e.g. Looking at your sample update statement, you wouldn't be able to convert the values from varchar to a numeric type and insert them back in to the same column, as the column is of type varchar. Either example below will return 7082: SELECT CONVERT (int, CONVERT (decimal (12,7), '7082.7758172')) SELECT CAST (CAST ('7082.7758172' as float) as int) Be aware that converting to a float value may result, in rare circumstances, in a loss of precision. a comma) or any other characters that do not have a meaning as a number. If you convert to a decimal or float value first, then convert to int, the conversion works. Syntax CONVERT ( value, type) OR: CONVERT ( value USING charset) Parameter Values Technical Details Works in: From MySQL 4. SQL -using CAST SELECT TOP (100) PERCENT BCM.Datum AS Date, BCM.FieldName, SI.ItemCode, SI. Note that this will fail if the query encounters any character strings that cannot convert to INT (in this example). Replace INT with your intended numeric format (if other than INT). The CASE statement will produce either 0.00, or (if it is numeric) whatever is in the workhours field. It should be numeric represented as decimal. decimal, numeric, etc.), you need to be careful in order for your varchar value, not contain any digit grouping symbols (i.e. The CONVERT () function converts a value into the specified datatype or character set. You can use CAST or CONVERT and the INT type (as shown below). How to convert varchar to decimal in SQL Server SQL Server How to convert varchar to decimal This SQL reads in a varchar (10) field called workhours that could have anything in it. So the values are held as varchar in this table, but you can cast it to decimal as long as they are all valid values, like so: select cast(MyValues as decimal(28,20)) as DecimalValues SELECT CAST(valueToConvert AS NUMERIC(10,2)) as ConvertedNumber GO Output: In general, when converting varchar values to numbers (i.e. This example works - DECLARE t VARCHAR (20) SET t '10' SELECT CAST (t AS DECIMAL (17,2)). Here's a SQL Fiddle, showing your data in decimal format.įiddle sample: create table Table1(MyValues varchar(100)) There are no problems converting a VARCHAR value to DECIMAL, but it has to be a numeric value. So you could use decimal(28,20) for example, which would hold 28 digits with 20 of them after the decimal point. You can use the decimal data type and specify the precision to state how many digits are after the decimal point.
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