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Status Not under consideration
Workspace Db2
Created by Guest
Created on Aug 17, 2018

Enable 'db2move' to change definitions during COPY SCHEMA

Using a list of schemas with db2move COPY schema function allows to copy a database content including function and procedure definitions from one database to another,
And in the default mode "DDL_AND_LOAD", it copies definitions and loads data using 'load from cursor' treaing RI constraints and generated columns well. SET INTEGRITY is done automatically.
And even definitions depending on another schema (like views having different schema than tables) are taken correctly, if all schemas are copied using one 'db2move' command.

BUT if definitions should be changed (e.g. directing INDEX or LOBs into own Tablespace, or introduce table partitioning), you would have to redefine and (re-)load that data manually.
Although 'db2move' offers MODEs like "DDL_ONLY" and "LOAD_ONLY", the process doesn't work like the combined step. (LOAD doesn't treat all the dependencies correcty then!).

Thus db2move should be enhanced to allow the user to specify, that db2move takes a pause and prompts the user for response, before it starts with the load phase.
This way defintions could be easily changed before 'db2move' load the data then.

It works well, if you change definition on the flight, while db2move is loading a different schema from the list. But it's risky, as you don't know exactly when it starts to process the definitions you want to change!