Adding a column to all user tables in t-sql

Question

I need to add a delete flag column to all 40 user tables in a database. I could write a script to loop through sys.tables, but I thought I'd check and see if anyone has either a better solution, or pre-created sql for this scenario.

Answer 1

There is an undocumented but well known stored procedure sp_msforeachtable:

exec sp_msforeachtable 'alter table ? add flag bit not null default 0';