Using cast in insert statement

问题

I am inserting some raw data into a table in MS SQL 2005 from excel. Some of these data are not formatted correctly ie the amount colum is formatteT as a number 12345 whereas i need to be like 123.45 so i use this CAST(TRANSACTION_HISTORY.AMOUNT AS decimal) / 100 to convert it correctly. However is there a way to use the cast in an insert statement??

thanks

回答1:

You can use CAST in any kind of statement(Insert, update, delete, select) where you use data.

Insert into table1 values( CAST(col1 as nvarchar(50)) )

回答2:

I assume you're using a linked server or openquery to get the data from excel. You can cast in the select statement.

So

INSERT INTO YourTable
SELECT Cast(Transaction_History.Amount AS Decimal)/100
FROM EXCELLINK...[$Sheet1]

You could also just update all values in the table after you do the import

UPDATE YourTable
SET YourColumn = YourColumn/100

来源：https://stackoverflow.com/questions/5003164/using-cast-in-insert-statement