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Tip of the Day
Language: SQL Server
Expertise: Beginner
Feb 14, 2000



Application Security Testing: An Integral Part of DevOps

Deleting/Expanding a Column

What is the proper method(s) to delete a column from a table or expand the size of a column in a table?

Adding is easy. Deleting and changing obviously is more complex.

If you know how to add them then you are on the way to deleting and changing them:

alter table x
add [column name] [data type] 

alter table x
drop [column name]

alter table x
alter column [column name][new data type]
However, be aware that these examples only apply for SQL 7. Version 6.5 only allows you to add a column.
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