As part of the data migration from DB2 z/OS (Mainframe) to Google cloud SQL, I don't see the direct service/connector provided by google or IBM. So, I am exploring the option to move the data to MySQL first and then to Cloud SQL.
I could see the solution to migrate from Mysql to cloud SQL but not DB2 to MYSQL.
I searched in google for this need but I could not find the resolution.
Will it be connected based on JDBC connection or something else?
The approach of migrating first to CSV and then to Cloud SQL for MySQL sounds good. As you said, you will need to create a Cloud Storage Bucket [1], upload your CSV file to the bucket, and follow the steps here [2] corresponding to MySQL.
[1] - https://cloud.google.com/storage/docs/creating-buckets
[2] - https://cloud.google.com/sql/docs/mysql/import-export/import-export-csv#import