Mar 9, 2009 · I am trying to change a column from a varchar(50) to a nvarchar(200). What is the SQL command to alter this table?

Apr 5, 2022 · I have SQL Server database and I just realized that I can change the type of one of the columns from int to bool. How can I do that without losing the data that is already entered into that …

May 18, 2012 · Is the best method to create a temp column, "column2", transfer the data to this column, from the column with the problematic type, delete the problem column and then rename the temp …

I have a column which has a datatype : datetime. But now i want to convert it to datatype varchar. Can i alter the datatype without droppping the column? If yes, then please explain how?

Aug 31, 2009 · I want to change the data type of multiple columns from float to int. What is the simplest way to do this? There is no data to worry about, yet.

I want to change my column value in categoriID from numbers to text. Is this possible? SELECT name, CAST(categoriID AS char(10)) FROM customer WHERE categoriID = 1 AS 'new_text' Here is a link o...

Feb 15, 2012 · I'm trying to change the datatype of a column in SQL Server from tinyint to smallint. But there's a default value on my column and I don't know the name of the constraint.

Jan 24, 2015 · I need to ALTER the data types of several columns in a table. For a single column, the following works fine: ALTER TABLE tblcommodityOHLC ALTER COLUMN …

0 Alternatively, you could create a new column, in which the data type is DATE. then pass the data in your varchar as a date .then drop your initial column and finally rename your new column to what it …

Feb 23, 2009 · But the problem is that it of course already contains data. Is there any way we can change the type of that column from varchar to int, and not lose all those numbers that are already in …