SQL Server, Azure SQL Database, Amazon RDS & AWS, Oracle and IBM Help
An online community of DBAs, developers and data intelligence builders, with videos, articles, resources and online events for members and non-members.
Find out more >>
(Paul White) The ALTER TABLE … ALTER COLUMN command is very powerful. You can use it to change a column’s data type, length, precision, scale, nullability, collation…and many other things besides.