The CHGPF command (& SQL Alter Table) can be used to add, remove, and
change columns from physical files and SQL tables. Logical files would have
to be dropped and recreated.
The last statement is not correct. The system handles all that for you.
You're right, I meant to say one of the benefits of using CHGPF & ALTER TABLE are that DB2 handles the logical file dependencies.
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This was first published in May 2003