Actual operations and precautions for the three DB2 data migration methods

This article mainly describes three practical methods for migrating DB2 data. We mainly introduce the actual methods for migrating these three types of DB2 data, as well as descriptions of the things that deserve our attention in actual operations and their shortcomings in actual operations.

DB2 data migration methods include:

1. Data migration through the backup and restoration of the DB2 database

Note:

1. manually select backup when restoring the file. The time setting of the recovery file must be consistent with the timestamp on the backup file.

2. cross-platform migration is not supported. For example, files backed up from a linux database cannot be recovered to a windows database.

2. Data migration through the export to and import from Methods

Disadvantages:

1. It is troublesome to export and import each table in the database separately.

3. Use the DB2look and db2move commands for data migration

Note:

1. if the SQL statement exported by the Db2look command contains the ddl statements related to foreign keys, cut the ddl statements of all foreign keys and place them in a separate file, execute the ddl related to the primary key after the data is imported. Otherwise, data in some tables cannot be imported due to primary key issues.

The above content is an introduction to the three DB2 data migration methods. I hope you will have some gains.