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  1. Backup the HSQLDB database file.
  2. Copy views from the SQL code and save them as queries. Adjust later and save as views again. Views can not be edited in Firebird at this time!
  3. Table names and column names in Firebird can only be up to 31 characters long. If necessary adjust.
  4. Due to a bug, in all tables date fields, time fields and date / time fields must be supplemented by a field that stores the contents as text.
  5. Due to a bug, images read in an HSQLDB are not displayed in the Firebird database after migration.
  6. Pure text tables (integrated * .csv table etc.) are not possible under Firebird.